IIMSA CODECOMPETITON RULES

OF THE

INTERNATIONAL MOTOR SPORTS

ASSOCIATION, Inc.

P.O. Box 3465 Bridgeport, Conn. 06605

(203) 336-2116

1984

IIMSA CODECOMPETITON RULES

OF THE

INTERNATIONAL MOTOR SPORTS

ASSOCIATION, Inc.

P.O. Box 3465 Bridgeport, Conn. 06605

(203)336-2116

1984

PREFACETo enhance the sa fe ty o f p a rtic ip a n ts and sp ec ta to rs at iMSA- sanctioned a u to m ob iie races and to provide fo r the o rderly co nd u c t o f events requ ires adherence to these rules, the IMSA CODE, here ina fte r set fo rth . A il IM SA license holders and m em bers agree to com p ly w ith these IM SA ru les, as they may be am ended from tim e to tim e , w hich rules, as in terpre ted by IMSA, govern the co nd u c t and o rgan iza tion of a il IM SA-sanctioned events. The 1984 IMSA CODE supersedes ail previous e d itio n s of the IMSA CODE as w e ll as a il am endm ents thereto, and sha ll rem ain in fo rce and e ffe c t excep t as am ended as provided herein, u n til superseded by pub lica tio n o f the next e d itio n of the IM SA CODE.

forewordThe 1984 IMSA CODE takes effect on its publication date.

These rules establish for all participants the standards governing the organization and conduct of I MSA-sanctioned competitions.

The main body of rules changes very little each year. This section defining relationships, politics, administrative pro­cedures, rights and privileges of competitors is consistent with world practices and it evolves quite naturally.

The section on automobile rules tends to provoke more controversy and interest, since many manufacturers as well as private competitors are affected by even the slightest rules changes. As always, IMSA has tried its best to be responsible, consistent and even-handed in this regard. IMSA’s car rules reflect the experience of a marvelous cross- section of car owners, drivers, engineers, officials and race organizers.

As always, we have tried to maintain a clarity of style to avoid fuzzy meanings and avoid misunderstandings.

The most successful contestants are the ones who best understand the rules and how to use them, i urge all IMSA members to read them carefully so that together we can con­tinue putting on the most promotabie and enjoyable events.

Ail the best for a safe and successful season in 1984.

-

JOHN M. BISHOP President, IMSA

CONTENTSCHAPTER ITEM PAGE

1. CONTROL OF C O M P E TIT IO N ............................ ........ 11.1 In te rna tiona l C on tro l ...................................................... 11.2 N ationa l C o n tro l............................................................... 11.3 IM SA C ontro l ............................................................ ........ 11.4 IM SA C o m m is s io n e r....................................................... 22. DEFIN ITIONS T E R M S .......................................... ........ 22.1 IM SA - In te rna tiona l M o to r Sports Assn., Inc. ......... 22.2 IM SA C o d e ................................................................. ........ 22.3 C o m p e tit io n ....................................................................... 22.4 E v e n t............................................................................ ........ 22.5 S a n c tio n ..................................................................... ........ 32.6 D r iv e r ........................................................................... ........ 32.7 E n tra n t................................................................................. 32.8 P ro m o te r .................................................................... ........ 33. MEM BERSHIP • L IC E N S E S .................................. ........ 33.1 IM SA M e m b e rs ................................................................. 33.2 A p p lica tio n Form s .................................................. ........ 33.3 C om p e titio n L ic e n s e ...................................................... 33.4 C rew L ic e n s e ............................................................ ........ 33.5 Insurance ................................................................... ........ 43.6 IM SA C o n d u c t .......................................................... ........ 44. E V E N TS ............................................................................... 44.1 O rg a n iz a tio n ............................................................. ........ 44.1.1 A p p ro v a l..................................................................... ........ 44.1.2 A cknow ledgm ent o f R u le s ................................... ........ 44.1.3 S a n c t io n s ................................................................... ........ 44.1.4 S upp lem enta ry R egu lations (S R )................................ 44.1.5 In s u ra n c e ................................................................... ........ 54.1.6 Postponem ent, A bandonm ent, C an ce lla tio n .,........ 64.2 C la s s if ic a t io n ........................................................... ........ 64.3 C o u rs e s ............................................................................... 64.3.1 C ourse M e a s u re m e n t............................................ ........ 64.4 T im ing , S coring , S tarts, F in is ties , R esults .... ........ 64.4.1 S ta r ts .......................................................................... ........ 64.4.2 S ta rtin g L in e ............................................................. ........ 64.4.3 S ta rting P o s it io n s .................................................. ........ 64.4.4 Standard R o lling S ta r t .......................................... ........ 74.4.5 T im ing and S c o r in g ................................................ ........ 74.4.6 C on tro l L in e .............................................................. ........ 74.4.7 S ta r te r ......................................................................... ........ 74.4.8 False S ta r t ................................................................ ........ 84.4.9 R e s ta r t........................................................................ ........ 84.4.10 M in im um D u ra t io n .................................................. ........ 84.4.11 T ie s ....................................................................................... 84.4.12 W in n e r ........................................................................ ........ 84.5 A w a rd s ................................................................................ 8

CHAPTER ITEM PAGE

5. ENTRANTS D R IV E R S ......................... ....... 95.1 C om p e titio n L icense .............................................. ....... 95.2 FIA L ic e n s e ................................................................ ....... 95.3 E n tr ie s ......................................................................... ....... 95.4 R e fu s a i........................................................................ ....... 95.5 F a ls if ic a t io n .............................................................. .... 95.6 S c ra tc h ........................................................................ .... 95.7 C o n d u c t.......................................... .... 95.8 R e s p o n s lb iiity ................................... ....105.9 A lc o h o iic B e ve ra g e s .............................................. .......105.10 M edlca i R esp o n s ib ility o f D r iv e rs ...................... .......105.11 S afe ty E q u ip m e n t................................................... .......105.12 A dve rtis ing • P rom otion - C on tingency Prizes .......106. RACING R ULES....................................................... .......116.1 Passing ...................................................................... .......116.1.1 P it E n try /E x it............................................................. .......116.2 Fiag S ig n a ls .............................................................. .......116.2.1 Green F la g ...................................... ....116.2.2 B lue F ia g .................................................................. .' ....126.2.3 Y e iiow F ia g ..................................... ....126,2.4 W h ite F ia g ....................................... .......126.2.5 Y e iiow Flag w ith V e rtica i Red S tr ip e ......... ....126.2.6 B iack F ia g ....................................... ....126.2.7 B iack Fiag w ith Orange D is c ............................... .......126.2.8 Red F ia g .................................................................... .......126.2.9 B iack and W h ite C heckered F ia g ...................... .......136.2.10 C heckered and B iack F iags Shown Together .......136.3 Ruies W hen A w ay From P i ts ............................... .......136.4 Ruies of the G rids and P its .................................. ........136.4.1 U nifo rm s ........................................ ....136.4.2 Fue iing ....................................................................... ....136.4.3 O ther E q u ip m e n t............................... ....136.4.4 C rews ............................................ .......146.4.5 Pit T ra ff ic ........................................ .......146.4.6 Removai From P i ts ................................................. .......146.4.7 G ridd ing of A u to m o b ile s ...................................... .......147. O F F IC IA LS ................................................................ .......157.1 S u p e rv is io n ............................................................... .......157,2 A p p o in tm e n t o f O f f ic ia is ...................................... ....... 157.3 C o n d u c t...................................................................... .......157.4 S epara tion and P iu ra iity o f D u t ie s ..................... ....157.5 Race D irec to r (Chief S te w a rd )................. ....157.6 S te w a rd s ................................................................... ....167.7 S ta r te r............................................ ....167.8 T im ekeeper (T im er and S c o re r)................ ....167.9 Techn ica i Inspecto r (S cru tine e r).............. .... 167.10 Fiag M a rs h a i.................................... .... 167.11 C om m u n ica tio n s M a rs h a i................................... ....... 177.12 C ourse M a rs h a l....................................................... ....... 17

CHAPTER ITEM PAGE

7.13 M edica l D ire c to r ...................................................................178. P E N A LT IE S ............................................................................178.1 Range of P e n a ltie s ............................................................. 178.2 F in e ...........................................................................................178.3 D is q u a iif ic a tio n ....................................................................188.4 S u s p e n s io n ............................................................................188.5 Loss o f P o in ts ...................................................................... 188.6 E x p u is io n ............................................................................... 189. PR O TESTS ............................................................................. 189.1 F o r m ........................................................................................ 189.2 T im e L im i t s ............................................................................189.3 P ro tests A g a in s t G a rs ....................................................... 199.4 D isp o s itio n of P ro te s ts ...................................................... 199.5 A w a rd s ................................................................................... 199.6 M a lic iou s P ro te s ts .............................................................. 1910. A P P E A L S ...............................................................................2010.1 E f fe c t .......................................................................................2010.2 F o r m ........................................................................................2010.3 H e a r in g ................................................................................... 2010.4 J u d g m e n t.............................................................................. 2010.5 M a lic iou s A ppea ls ..............................................................2011. A U T O M O B IL E S ................................................................... 2111.1 A u to m o b ile ........................................................................... 2111.2 T ire s .........................................................................................2111.3 F u e l.......................................................................................... 2111.4 M e c fian ica i C on d ition and Techn ica l insp e c tio n . 2111.5 I MSA GT C ategory ..............................................................2411.5.1 P u rp o s e .................................................................................. 2411.5.2 E l ig ib i l i t y ................................................................................2411.5.3 R eco g n itio n Form s ............................................................ 2511.5.4 F u e lT a n ks ............................................................................ 2511.5.5 M in im um W e ig h ts ...............................................................2511.5.6 A u thorized M o d ific a tio n s • GTO and G T U ...................2611.5.6.1 N o te s .......................................................................................3011.5.7 Experl m enta l GT (G T X )..................................................... 3011.5.7.1 GT P ro to type C ars (G TP)...................................................3311.5.7.1.1 D e f in i t io n ...............................................................................3311.5.7.1.2 Eng ine E l ig ib i l i t y .................................................................3311.5.7.1.3 M in im um W e igh ts /M a x im u m D isp lacem en ts ..........3411.5.7.1.4 Eng ine M o d if ic a tio n s .........................................................3411.5.7.1.5 C h a s s is -B o d y .....................................................................3411.5.7.1.6 S a fe ty D e v ic e s ..................................................................... 3711.5.7.1.7 Eng ine E xam ples ........................................................ 3711.6 IM S A R S .................................................................................3911.6.1 P u rp o s e ..................................................................................3911.6.2 E l ig ib i l i t y ................................................................................3911.6.3 C on fig u ra tio n ......................................................................3911.6.4 O ffic ia l W e ig h ts ...................................................................3911.6.5 S a fe ty R e q u ire m e n ts ........................................................ 40

CHAPTER ITEM PAGE

11.6,6 O p tiona l M o d if ic a tio n s ............................................. .....4011.6.7 RS Sedan E lig ib ility L i s t .......................................... .....4411.7 IM SA A m erican C ha iienge C ategory .................. .... 4411.7.1 Purpose ......................................................................... .....4411.7.2 E l ig ib i l i t y ....................................................................... .....4511.7.3 C on fig u ra tio n .............................................................. .....4511.7.4 O ffic ia l W e ig h t ............................................................ .....4511.7.5 R equired M o d if ic a t io n s ............................................ .....4511.7.6 O ther M o d if ic a t io n s .................................................. .....4611.7.7 Approved M akes and M o d e ls ................................. .....5012. STANDING SUPPLEMENTARY REGULATIONS ....5212.1 Cam el GT S e r ie s ......................................................... .....5212.1.1 D ura tion ........................................................................ .....5212.1.2 Car E l ig ib i l i t y ............................................................... .....5212.1.3 Cam el GT Driver C h a m p io n s h ip s ......................... .....5212.1.4 M anu fac tu re r C ham p ions ............................................ 5312.1.5 A d v e rt is in g ................................................................... .....5412.2 C ham pion Spark Plug C ha iienge S e r ie s ............ ..... 5412.2.1 D ura tion ...................................................................... ..... 5412.2.2 Car E l ig ib i l i t y .................................................................... 5412.2.3 Driver C ham p ion ............................................................. 5512.2.4 Point Fund ................................................................... ..... 5512.2.5 M a nu fac ture r C ham pion ......................................... ..... 5612.2.6 A d v e rt is in g ................................................................... ..... 5612.3 K e lly A m erican C ha iienge S e r ie s ......................... ......5612.3.1 D ura tion ..............................................................................5612.3.2 Car E l ig ib i l i t y .....................................................................5612.3.3 Driver C ham p ion ..............................................................5712.3.4 P o in t Fund ................................................................... ......5712.3.5 M anu fac tu re r C ham pion ...............................................5812.3.6 A d v e rt is in g ................................................................... ......5812.4 R enau lt C up Series ................................................... ......5812.4.1 D ura tion ..............................................................................5812.4.2 Driver C ham p ion ..............................................................5812.4.3 A d v e rt is in g ................................................................... ......5913. APPENDIX ................................................................... ......62

E qu iva lence F o rm u la s ............................................. ......62

1. CONTROL OF COMPETITION1.1 International Control

Ttie Federa tion In te rna tiona le de I’A u tom ob lle (FIA) Is the au thority w h ich es ta b lish es and governs ce rta in In te rna tiona l ru les fo r au tom ob iles , s tandards fo r the o rgan iza tion o f au to m ob ile co m pe ti­tio ns and sp e c ific regu la tions fo r w o rld cham p ionsh ip series o f com ­p e titions . FIA has pub lished the In te rna tiona l S po rting Code fo r these purposes.

Except as provided In A rtic le 12 o f the IM SA CODE, FIA Is the fina l In te rna tiona l co u rt o f appeal fo r d ispu tes a ris in g o u t o f F IA -lls ted events.

1.2 National ControlThe A u to m o b ile C om p e titio n C om m ittee fo r the United S tates, FIA

(ACCUS) Is recognized by FIA as the N ationa l S porting A u th o rity (ASN) fo r the U nited S tates. ACCUS Is there fore the so le a u th o rity w h ich oversees In te rna tiona l a u tom ob ile co m p e tit io n s In the U.S.A., Its te r­rito ries and p rotecto rates.

ACCUS Is in tu rn com posed of represen ta tives o f Its five m em ber c lub s and a num ber o f Ind iv iduals . The m em ber c lu b s o f ACCUS are;

- In te rna tiona l M o to r S ports A sso c ia tio n , Inc. (IMSA),- N a tiona l A sso c ia tio n fo r S tock Car A u to Racing, Inc. (NASCAR),- N a tiona l H ot Rod A ssoc ia tion , Inc. (NHRA),- S ports C ar C lub o f A m erica , Inc. (SCCA), and- U nited S ta tes A u to C lub, Inc. (USAC).ACCUS delegates to Its m em ber c lub s m ost o f the norm al d u tie s of

an ASN, Inc lud ing the a u th o rity to organize, sa nc tio n and co n d u c t FIA- lls ted events, and events co un tin g tow ards In te rna tiona l and w orld cham p ionsh ips .

1.3 IMSA ControlThe In te rna tiona l M o to r S ports A ssoc ia tion , Inc. has es tab lished

these ru les (the IM SA CODE) w h ich govern the o rgan iza tion and co n ­d uc t o f IM S A -sanctloned events, the standards fo r e lig ib il ity and con ­duct o f co m pe tito rs and o ffic ia ls , the regu la tions fo r e lig ib il ity and prepara tion o f au tom ob iles , and th e ru les fo r annua l IM SA series of events.

The IM SA CODE Is in a ll p rin c ip le s co ns is te n t w ith the In te rna tiona l Sporting Code o f the FIA; accord ing ly . It sha ll take precedence as the govern ing body o f ru les fo r a ll events sanctioned by IM SA, w he the r or not they may be lis ted on the FIA ca lendar.

IM SA m ay am end the IMSA CODE from tim e to tim e by pub lish in g a no tice o f am endm ent in e ithe r an IM SA b u lle tin o r n ew s le tte r m ailed to IM SA com pe tito rs , and an am endm ent sh a ll becom e e ffe c tive upon the da te of such m a iling unless o the rw ise provided In th e n o tice of am endm ent.

1.4 IM SA C om m iss ione rIM SA sha ll a pp o in t a C om m iss ione r respons ib le to r the o rde rly ad­

m in is tra tio n o f appea ls In accordance w ith A rtic le 10 o f the IH4SA CODE and o the r sp e c ific d u tie s and p ro jec ts ass igned by IMSA.

The C om m iss ione r sha ll dec ide on beha lf o f IMSA, w he the r o r not an appeal shou ld be conside red and heard, and h is dec is io n sha ll be

fina l.N o tw ith s ta n d in g A rtic le 10.3, If the C om m iss ione r dec ides th a t an

appeal shou ld be heard, he m ay nam e a co u rt o f appeal, o r he a lone m ay hear the appeal. The court o f appeal or the C om m iss ione r shall render a jud g m e n t In accordance w ith A rtic le 10.4 and th is jud g m e n t sha ll be fin a l and b ind ing upon a ll IM SA m em bers.

The C om m iss ione r sha ll prepare fo r IMSA a w ritten report o f a ll ap­peal proceed ings, w h ich sha ll be su b je c t to th e sam e r igh t o f pub lica ­tion set fo rth in A rtic le 10.4.

2. DEFINITIONS — TERMSs ta n d a rd n om e n c la tu re w il l be used w herever p ra c tic a b le In IMSA

a c tiv it ie s .

2.1 IM S A — In te rn a tio n a l M o to r S p o rts A s s o c ia t io n , Inc., P.O. Box 3465, B ridg e p o rt, CT 06605, a n a tio n a l s a n c tio n in g o rga n iza tio n fo rm ed to p rom o te m o to r sports ; to organ ize, s a n c tio n , superv ise and co n d u c t m o to r s p o rts events; to p rom o te u n ifo rm ru les and sa fe r s tandards; to c o lle c t and d is s e m in a te in fo rm a tio n re la tin g to m o to r sp o rts ; to supe rv ise and g ran t a ff i l ia t io n to o th e r o rgan iza ­t io n s w ith s im ila r purposes, and to co op e ra te w ith su ch o rga n iza ­tio n s ; and to unde rtake any o th e r a c tiv it ie s to advance m o to r sports .

2.2 IMSA CODEThe law s and regu la tions govern ing the sa nc tio n ing and conduc t o f

IM SA-sanctioned events. IM SA may am end the IM SA CODE from tim e to tim e by pub lish ing no tice s o f am endm ent In IMSA b u lle tin s or new sle tte rs, as provided In A rtic le 1.3 hereof.

2.3 C om pe titionA con tes t In w h ich an a u to m ob ile takes part and w h ich Is o f a co m ­

petitive nature o r Is g iven a com pe tit ive nature by p ub lica tio n of

results.

2.4 EventAn en tire program o f com pe titions .

2.5 SanctionThe docum enta ry a u th o rity g ran ted by IM SA to organ ize and hold a

co m pe titio n .

2.6 DriverA person named as the driver o f an a u tom ob ile in a co m pe tition .

2.7 EntrantA person or o rgan iza tion w hose a u to m ob ile is accep ted fo r co m ­

petition .

2.8 PromoterA person or body co n tro llin g a fa c ility w here events are organized,

p rom oted and staged.

3. MEMBERSHIP — LICENSES3.1 IM SA m em bers are independent co n tra c to rs and are ne ithe r agents, servants nor em ployees o f IMSA, and IM SA m em bers assum e and take fu ll re sp o n s ib ility fo r reporting and paying to the app rop ria te a u th o ritie s a il charges, p rem ium s, and taxes, i f any, due or payab le on any funds IM SA m em bers m ay receive as a result o f th e ir p a rtic ip a tion in IM S A -sanctioned events, inc lu d in g but not lim ite d to so c ia l se cu rity taxes, unem p loym en t insurance taxes, com pensa tion insurance, in ­com e taxes, and w ith h o ld in g taxes.

3.2 Application forms fo r an IM SA m em bersh ip a nd /o r license may be ob ta ined from IM SA headquarters, w h ich is so le ly respons ib le fo r issu ing such m em bersh ips and licenses. M em bersh ip and /o r license a p p lica tio n fo rm s m ust be fu lly executed, signed by the app lican t, and accom pan ied by the requ is ite funds. The mere accep tance o f an IMSA m em bersh ip a n d /o r license a pp lica tio n fo rm and fee by an IMSA o ffic ia l does not c o n s titu te the issuance o f o r approval by IMSA o f such app lica tion . A p p lica n ts w ill be advised in w rit in g by IM SA head­quarters w he ther th e ir a pp lica tio n fo r IMSA m em bersh ip and /o r license has been approved.

3.3 Competition License is requ ired o f drivers, en tran ts , o ffic ia ls , p rom ote rs and indus try representa tives; in o the r w ords, a ll key per­sons d ire c tly involved in the co nd u c t and presen ta tion o f IMSA- sanctioned race events.

3.4 Crew License is required of m echan ics, crew m em bers and o the rs w ho are issued p it pass c re de n tia ls bu t w ho d o not have key re sp o n s ib ilit ie s in s tag ing IM S A -sanctioned events.

3.5 Insurance - C om pe tition and C rew L icense tio lde rs are covered by a $5,000 acc iden ta i dea tti insurance p o iicy w hich is in e ffe c t 24 hours a day th ro u gh o u t the te rm of the ca iendar year im prin ted on th e ir licenses. R eg is tra tion fo r th is IN4SA bene fit is m ade a t the tim e a pp iica tio n fo r such IM SA iicense is approved by iM SA headquarters.

3.6 IM SA C o n d u c t- IM S A is ded ica ted to the h ighest s tandards o f sa fe ty and sportsm an like co n d u c t and e xpects a li m em bers and /o r license holde rs to co nd u c t them se lves accord ing ly .

4. EVENTS4.1 O rgan iza tion — An IM SA event may be organ ized by

a. IMSAb. An A ff ilia te d O rgan iza tion o f IMSAc. O ther o rgan iza tions or p rom ote rs approved by IMSA.

4.1.1 ApprovalThe name, senrice m ark o r em blem o f IM SA may be a ssoc ia ted only

w ith a c tiv it ie s and events w h ich have been sanctioned or approved by IMSA.

4.1.2 A cknow ledgem en t o f RulesEvery driver, entrant, o ffic ia l, p rom ote r o r o the r p a rtic ip a n t in an

I M SA-sanctioned event, and every person w ho is issued an IMSA license, is deem ed to be a cqua in ted w ith th e IM SA CODE and has agreed to ab ide thereby, it is assum ed th a t he agrees w ith o u t reserva­tion to co nd u c t h im se lf in accordance w ith the IM SA CODE and re­nounces the r igh t to any recourse o r tr ib un a l not provided fo r in the IM SA CODE excep t w ith the consen t o f IMSA.

4.1.3 S anctionsEvery speed event w ith w h ich IM S A ’s name, se rv ice m ark or

em blem is assoc ia ted m ust be fo rm a lly sanctioned by IMSA.

4.1.4 S upplem entary R egu lations (SR) — d e fin e fo r a il p a rtic ip a n ts the s p e c ific co n d itio n s fo r an event. SR u sua lly are com bined w ith en ­try fo rm s sent to co m pe tito rs and o ffic ia ls . S ince SR accom m odate loca l cond itions , they may o ccas io n a lly appear to co n tra d ic t a p rovi­s ion of the IMSA CODE; in such a case, the SR take precedence over the IM SA CODE.

The SR co n ta in th is in fo rm a tion :a. Nam e, ioca tion , dates, nature and c la s s ific a tio n o f the event.b. IM SA S anction num ber and announcem ent:

“ H eid under the IMSA CODE."c. Nam e and address o f the prom oter/organizer.d. Schedu le and loca tion o f a il a c tiv it ie s and co m pe titio n s , c lasses

o f au to m ob ile s e lig ib le , etc.e. Entry dead line , fees, num ber o f en tries to be accep ted and s tarted

in each co m pe tition .f. Schedu le o f aw ards and prizes.g. O the r necessary in fo rm a tion .No changes w ill no rm a lly be m ade In the SR a fte r en try o f dead line ,

excep t fo r reasons o f sa fe ty o r fo rces beyond co n tro l o f the respons i­b le o ffic ia ls .

4.1.5 Insurance Regulations and Standardsa. M in im um L im its — IMSA requires tha t a ll Its sanctioned events

be covered by proper lia b ility and p a rtic ip a n t a cc id e n t insurance in these m in im um lim its :

EVENT LIABILITY: $5,CXX),000 C om bined S ing le L im itPARTICIPANT ACCIDENT: A cc ide n ta l Death — $20,000

M edica l R eim bursem ent — $20,000 W eekiy Indem nity — $100/w eek fo r 104 weeks

(7-day w a itin g period)b. Approval — Event l ia b il ity insu rance fo r iM S A -sanctloned speed

events a u to m a tica ily covers a il p a rtic ip a ting drivers, crew m em bers, ca r ow ners and sponsors as w e li as the sanc tion ing body and prom oters. Th is p ro tec tion m ust o rd in a rily be secured th rough the IMSA Insurance program ; o the rw ise the insurance p o lic ie s m ust be subm itted to IM SA fo r approval p rio r to the g ran ting of IM SA sanction . P rom oters m ust a lso provide evidence o f such insu rance coverage to the C h ie f S teward. P a rtic ipan t ac­c iden t insu rance coverage m ust be secured under the IM SA in­surance program w ith o u t exception .

c. M a jo r M edlca i — IMSA has secured an a d d itio na l $30,000 of m ed ica l bene fit coverage w h ich w ill pay 80% o f Incurred m edica l expenses a fte r the bas ic P a rtic ipan t a cc id e n t b en e fit has been exhausted.

d. Releases — Every co m pe tito r, o ffic ia l, w orker, m echan ic and o the r ind iv idua l w ho Is Issued a p it pass or o the r such credentia l pe rm ittin g access to the rac ing c irc u it m ust f irs t s ign a Release and Indem n ity Agreem ent as provided at o ffic ia l IMSA reg is tra ­tion.

It w il l be conside red a se rious breach o f these ru les to enter such res tric ted areas o f the racing c irc u it w ith o u t f irs t s ign in g such a

Release and Indem nity A greem ent, to secure a p it pass or othier c reden tia l under fa lse pretenses o r to tra n s fe r suc fi a creden tia l to any o ttie r person.

4.1.6 Postponement, Abandonment, CancellationIf an event Is cance lled or pos tponed fo r m ore tt ia n 15 days, entry

fees w ill norm a lly be returned to those w ho have had no opp o rtu n ity to

com pete.

4.2 ClassificationIM SA w iil c la s s ify events accord ing to the drivers and types of

au tom ob iles w h ich w iil take part. IM SA w ill create and m a in ta in cham ­p io nsh ip series o f events fo r s p e c ific purposes and autom ob iles .

4.3 CoursesNo c o m p e tit io n m ay take p lace o the r than on a course approved by

IMSA.IM SA may;

a. L im it a course to ce rta in event c la ss ifica tio n s .b. R estric t the c iasses o f au to m ob ile s to be raced at a course.c. R estric t the num ber o f ca rs to be s ta rted In a race.d. R estric t the course to ce rta in grades o f drivers.

4.3.1 Course MeasurementThe o ffic ia l leng th o f a course is n o rm a lly m easured a long the

cente rline o f the road.

4.4 Timing, Scoring, Starts, Finishes, ResuitsUnless the SR o f an event provide o the rw ise , the fo llo w in g d e fin i­

tio ns and procedures w ill be observed at IM SA events.

4.4.1 StartsThere are tw o types o f sta rts :a. The s tand ing s ta rt w here the cars are s ta tionary a t the m om ent

the s ta rtin g signa l is given, andb. The ro lling s ta rt where the cars are m oving a t the m om ent the

s ta rtin g s igna l is given. In w h ich case a pace ca r m ay be used to lead the fie ld to the s ta rting line. The ro lling s ta rt is norm a lly used un less o the rw ise s ta ted in the supp lem enta ry regu la tions fo r the

event.

4.4.2 Starting LineIn a s tand ing s ta rt, the s ta rtin g line Is th e fixed p os itio n o f each car

p rio r to the s ta rtin g signal.In a ro lling s ta rt, the s ta rtin g line Is the p o in t on the course w here

tim in g begins.

4.4.3 Starting PositionsCars w iil no rm a lly be p laced in the s ta rtin g line-up In o rder o f the ir

speed po ten tia l w ith th e fa s te s t to the fro n t o f the fie ld .A ca r m ay be q ua lified on ly by a drive r o ffic ia lly entered to d rive th a t

car.

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For events w tie re s ta rtin g p o s itio n s fo r tf ie fea tu re races are de te r­m ined by tiea t races, pole p os itio n goes to tt ie w in n e r o f tt ie fa s te s t tieat. In case w ea tfie r o r othier un foreseen events create inequ itab le co nd itio ns in separate q ua lify ing sess ions fo r a race, the C h ie f S tew ard m ay e le c t to p lace a il ca rs in the firs t sess ion in one row and a il ca rs in the second sess ion in the o the r row, w ith the fa s te s t ses­s ion on th e pole row. O therw ise , po le p os itio n goes to the fa s te s t q ua lifie r. The pole is d e fined as the fro n t row, ins ide pos itio n w ith respect to the firs t tu rn past the s ta rtin g line.

If tw o ca rs achieve the sam e q u a lify in g tim e , the ca r w h ich se ts tha t tim e e a rlies t in h is q u a lify in g sess ion sha ll be g ridded firs t.

in the in te re s t o f sa fe ty and at the d isc re tio n o f the C h ie f S teward, a co m p e tito r w ho is unab le to q u a lify in h is sess ion but can m eet the q u a lify in g requ irem ents, may be placed on th e g rid behind the o the r a u to m ob ile s o f h is d iv is ion .

4.4.4 Standard Rolling StartCars w ill take th e ir ass igned s ta rtin g p o s itio n s in tw o rows behind

the pace car. The pace car w ill depa rt the s ta rtin g grid and m ake one lap o f the c irc u it a t m odera te speed. D rivers w ill keep th e ir o r ig in a l fo r­m ation behind the pace ca r du ring the pace lap. A fte r the pace ca r has le ft the c irc u it, usua lly via th e p it lane entrance, d rive rs w ill m a in ta in p os itio n a t an even speed se t by the pole p os itio n car and driver. O f­fic ia l t im in g beg ins w hen the lead ing car c rosses the s ta rtin g line, it is not perm itted fo r a d rive r to pass ano the r u n til h is ca r has crossed th is o ffic ia l s ta rtin g line.

4.4.5 Timing and Scoringa. For th e s ta n d in g s ta rt, the tim in g and sco ring com m ence a t the

m om ent the s ta rtin g signa l is given; or, i f a u to m a tic appara tus is used, a t th e in s ta n t it is operated.

b. For a ro iling s ta rt, the tim in g and sco rin g com m ence when the lead ing ca r c rosses the s ta rting line.

c. F irs t and subsequen t laps are no rm a lly tim e d and scored when each car crosses th e con tro l line at th e tim ing and sco ring sta tion .

d. A il s ta rtin g ca rs w ill be cred ited w ith a fin ish in g p os itio n w he the r o r not they are runn ing w hen the checkered fla g is given.

4.4.6 Control LineAn au to m ob ile c rosses a co n tro l lin e a t the ins tan t the ce n te r o f its

fron t w hee ls passes over th a t line, o r a t th e ins tan t the a u to m a tic tim ­ing appara tus is operated.

4.4.7 StarterA drive r is cons ide red to be a s ta rte r in a co m p e tit io n on ly if he has

t>een under the S ta rte r’s orders a t any tim e during the co m pe tit io n , in h is ca r and fu lly prepared to com pete.

4.4.8 False StartA fa lse s ta rt occu rs w hen a drive r under the S ta rte r’s orders m oves

forw ard from his assigned pos itio n before the s ta rtin g s igna l is given. The SR may d e fin e a pena lty o r the Race D irec to r may assess a penal­ty fo r a fa lse start.

4.4.9 RestartIf It shou ld becom e necessary to s top a co m pe titio n , the Race

D irecto r may restart the co m p e tit io n w ith co m pe tito rs in th e ir o rig ina l s ta rting pos itions , in s ing le f i le accord ing to th e ir s tand ings at the tim e the co m pe tit io n w as halted, o r as o the rw ise prescribed in the SR.

Pace laps on the res ta rt w ill not be scored.N o w ork o r rep len ishm ent m ay be done or ass is tance rendered to

any car during the period a fte r the co m p e tit io n is halted and restarted, unless s p e c ific a lly authorized by th e SR or the Race D irector.

4.4.10 Minimum DurationIf a com pe tlton Is s topped a t less than 50% of Its schedu led tim e or

d is tance and Is not restarted, it w il l be considered Incom p le te , and o rganizers w ill not be n o rm a lly ob liga ted to d is tr ib u te awards. If 50% or m ore has been run, IMSA m ay ca ll the co m pe tit io n com plete.

4.4.11 TiesIn case o f a tie (dead heat) the co m pe tit io rs concerned w ill share

equa lly the sum o f the prizes a llo tte d fo r th e ir pos itions .

4.4.12 WinnerThe drive r or d rivers o f the ca r w h ich com p le te s the d is tanoe o f the

c o m pe tit io n In the least tim e o r the g rea tes t d is tan ce in the tim e set fo r the com pe tlton w ill be decla red the w lnner(s).

In co m pe tlton s of a g iven d is tance , the checkered flag w ill be given firs t to the w inner, then to the o the r fin ish e rs as they c ross the fin ish line.

In co m pe tlton s of a tim ed length , the checkered flag w ill be given firs t to the lead ing ca r as It c rosses the fin is h line at o r a fte r the expira ­tion of the spec ified dura tion , then to the o the r fin ish e rs as they cross the fin is h line.

If the leading ca r is not running, the checkered flag w ill be given to the next h ighest running ca r In the sam e manner.

4.5 AwardsAs one o f the c o n d itio n s o f g ran ting sanction , IMSA m ay requ ire a

prom ote r to post the announced prize m oney p rio r to the s ta rt o f the event, and th a t IM SA con tro l the paym ent o f these awards.

5. ENTRANTS — DRIVERS5.1 Competition License

Every person w ho enters o r drives a ca r in an IM SA-sanctioned event, o the r than an F IA -lis ted event, sha ll possess a cu rren t IMSA C om pe tition License.

5.2 FiA LicenseEvery person w ho ente rs o r d rives a car In a F IA -lls ted event shall

possess a cu rren t FIA Entrant and D river L icense.IMSA requires th a t Entran ts and D rivers In an F IA -lis ted event w hich

Is a lso a part o f an IM SA cham p io nsh ip series a d d itio n a lly possess IMSA C om pe tlton L icenses In o rder to be e lig ib le fo r cham p ionsh ip po in ts In th a t series.

5.3 EntriesA n entry su bm itte d and accepted by IM SA fo r an IM SA-sanctloned

event c o n s titu te s a c o n tra c t b ind ing the e n tra n t to take part In the event, e ithe r w ith the driverfs) des igna ted or w ith IM SA-approved su bs titu te drlver(s), un less the en tran t Is excused from co m pe tin g by IMSA o r unless the en tran t Is prevented from co m pe tin g by fo rces beyond h is con tro l; and such an entry Is b ind ing upon the organizers to hold the event In accordance w ith the IM SA CODE and the Sup­p lem entary R egu lations fo r the event.

If it shou ld be de te rm ined th a t an accep ted en tran t has no In ten tion to take part In nor fu lf i l l h is o the r o b lig a tio n s In connection w ith an event, the en tran t m ay be deem ed In v io la tio n o f these rules.

5.4 RefusalOrganizers may refuse to a ccep t an en try fo r any reason and they

are not ob liga ted to g ive any reason. Such re fusa l Is fina l and not sub ­jec t to p ro tes t o r appeal.

However, If an en try Is refused, the organizers m ust advise the en­tran t as q u ick ly as possib le , and m ust re tu rn h is en try fee.

5.5 FalsificationAny entry w h ich co n ta in s fa lse in fo rm a tio n or Inco rrec t s ta tem en ts

may be cons ide red nu ll and vo id and th e entry fee m ay be fo rfe it.5.6 Scratch

An e n tra n t may, w ith the perm iss ion o f IMSA, scra tch (w ithdraw ) an entry by advis ing IM SA o f such w ithd raw a l. If such n o tice Is received prio r to the entry dead line date, h is en try fee w ill be returned.

However, If an en tran t o r driver, p roperly entered In an event, fa lls to appear, and If Instead he shou ld take part In ano the r co m p e tit io n on the sam e day, he w ill have v io la ted these ru les and m ay be penalized.5.7 Conduct

Every en tran t and drive r a t an IM S A -sanctloned event Is expected to conduct h im se lf as a gentlem an and sportsm an and In a m anner

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w hich w ill enhance th e good nam e o f m o to r sports and IM SA. Failure to d o so may be conside red to be a breach of these rules.

5.8 ResponsibilityD rivers are respons ib le fo r the co nd u c t o f th e ir crews du ring a com ­

pe tition . An o ffense by a crew m em ber m ay be charged to the driver.

5.9 Alcoholic BeveragesIt is fo rb idden to consum e any a lc o h o lic beverages during an event

in the p its , paddock o r any o the r p o rtio n s o f p rem ises under co n tro l o f

the o ffic ia ls .

5.10 Medical Responsibility of DriversA n IM SA-licensed driver w ho su ffe rs an in ju ry o r illn e ss w h ich a f­

fe c ts h is a b ility to d rive sha ll re fra in from ta k ing part in an IMSA co m ­pe tit io n un til he is aga in m e d ica lly fit.

IM SA or the Race D irecto r o f an IM SA event may requ ire a drive r to be exam ined by a phys ic ian p rio r to issuance of a driver license, before ta k ing part in a co m pe tit io n , o r a fte r an injury.

It sha ll be the re spo n s ib ility o f an IM SA-iicensed drive r to report any unusual m edica l co nd itio n , a lle rg ie s or a n tic ipa ted spec ia l trea tm ent he may require to the M edica l D irec to r p rio r to each event in w h ich he in tends to p rac tice o r com pete.

5.11 Safety EquipmentD rive r’s nam e, age, b lood type , know n a lle rg ie s , unusua l m ed ica l

c o n d itio n s , and da te o f m o s t recen t te ta n u s b oo s te r s h o t m u s t be w h ile ta k ing part in an IM SA co m pe titio n ;

a. Crash he lm et o f recognized h igh qua lity . It is recom m ended th a t he lm ets m eet the sp e c ific a tio n s set fo rth in T itle 49, C ode of Federal R egu lations, Part 571, Federal M o to r Veh ic le S afe ty S tan ­dard N um ber 571.218, o r m eet the sp e c ific a tio n s se t fo rth by the A m erican N a tiona l S tandards In s titu te , inc., in NASI Z90.1 a 1971 and NASI Z90.1 a 1973, o r bear the seal o f approval o f the Snell Founda tion 1975 onward.

Driver’s name, age, b lood type, know n a lle rg ies, unusual m edica l co nd itio ns , and date o f m ost recent te ta n u is booster sh o t m ust be labe led on back of helm et.

b. S u it m a nu fac tu re d o f N om ex or e q u iva le n t m a te ria l and cover­ing the e n tire body fro m the neck to th e ank les and w ris ts , w orn w ith fu ii- ie n g th unde rw ea r o f s im ila r m a te ria l.

c. G loves m ade o f lea ther o r fire -res is tan t m ateria l such as Nomex.d. Socks m ade o f fire -res is tan t m ateria l such as Nom ex.e. G ogg les o r face sh ie lds in open cars only.f. Hood o r face m ask o f fire -res is tan t m ateria l to cover fa c ia l ha ir o r

ha ir p ro trud ing from helm et.

5.12 Advertising - Promotion - Contlgency PrizesE ntran ts and drivers o f ca rs m ust execu te th e s tandard advertis ing

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release provided on each license a p p lic a tio n g ran tin g p erm iss ion for the use o f h is name, photos, and pho tos o f h is racing car in advertis ing and p rom otion m ate ria l, e xc lud ing p roduct endorsem ent.

To be e lig ib le fo r co n tig e n cy prizes, co m pe tito rs m ust a c tu a lly use the p roduct in question , d isp la y the appropria te deca l and execute the standard advertis ing re lease provided.

C om pe tito rs m ust co m p ly w ith a dve rtis ing requ irem ents spec ified fo r a sponsored event and fo r se ries o f events.

6. RACING RULES6.1 Passing

it is the re s p o n s ib ility o f both the overtak ing and overtaken d rive r to assure sa fe passing a t racing speeds. A ca r trave ling a lone m ay use the fu ll w id th o f the track. However, if it is overtaken by a fa s te r car, the drive r m ust give w ay to the overtak ing car. Passing m ay be e ithe r right o r le ft depending on the co n d itio n s o f the m om ent.

M aneuvers w h ich hinder, o bs tru c t, th rea ten o r c rea te danger to o ther co m pe tito rs , w he th e r such m aneuvers are de lib e ra te or u n in ten ­tional, are s tr ic t ly p roh ib ited and a breach o f these ru les. Drivers w ho vio la te these ru les m ay be warned, d isq u a lifie d from the race o r o the r­w ise penalized.

6.1.1 Pit Entry/ExitT hroughout the periods o f p rac tice , q u a lify in g and rac ing , access to

the p its m ust be m ade th rough the des igna ted p it entrance. The dece le ration zone before p it en trance and acce le ra tion zone a t p it ex it shall not be cons ide red as part o f the p its, and no w ork sha ll be per­form ed on cars in these areas.

The C h ie f S tew ard m ay levy a fin e o r the equ iva len t o f a one-lap penalty fo r b reach o f th is rule. Repeated v io la tio n s m ay resu lt in d is ­q ua lifica tio n o f the offender.

6.2 Flag SignalsThe fo llo w in g s ig n a ls are used both to advise drivers o f various con ­

d itions and to d ire c t drivers to obey various s p e c ific ins truc tions . C lo th fla gs are no rm a lly used, but m ay be rep laced w ith s im ila r ly cod ­ed rig id s ig n a llin g boards o r w ith ligh ts . S teady lig h t is equ iva len t to a m otion less flag ; fla sh in g ligh t, a waved flag.

6.2.1 Green FlagS tart o f race, o r ca nce lla tio n o f a danger p rev ious ly s igna lled . Track

is clear.

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6.2.2 Blue FlagM otion less : A no ther co m pe tito r Is fo llo w in g you and m ay be try ing

to pass you.W aved: M ake w ay fo r ano ther co m pe tito r w ho Is try ing to pass you. B lue fla g w ill be used on ly In a case w here fhe overtaken driver ob ­

v ious ly Is unaware o f the fo llo w in g car, o r Is c lea rly obs tru c ting another car.

6.2.3 Yellow FlagM otion less : Danger; no passing ; s low down.W aved: Extrem e danger; no passing; s low down; be prepared to

stop.M o tion less ye llo w fla g Is genera lly used to advise of an obvious

danger o r to fo rew arn o f a m ore serious danger ahead. Drivers shou ld s top rac ing u n til they are past the danger zone.

W aved ye llow fla g m ay m ean Im m inen t and serious danger such as a pa rtia l tra ck b lockage, fire on or near the tra ck or a crow d con tro l hazard.

W hen a ll flag s ta tio n s go to a waved ye llo w cond ition , d rivers shou ld expect the race to be paced fo r a num ber o f laps by the sa fe ty car, o r e lse the race to t>e s topped by the red flag. S low down. S top rac­ing. Passing o f the sa fe ty ca r Is a bso lu te ly fo rb idden unless a com ­p e tito r Is c lea rly s igna lled to do so. No pass ing o f any car by ano the r Is perm itted . V io la tio n s of these em ergency ru les w ill su b je c t the o f­fender to penalty.

6.2.4 W tiite Flag; A m bulance, fire tru ck , w recker, o r o the r senrlce vehic le Is on the c irc u it, o r a s low -m oving race ca r Is ahead.

6.2.5 Yellow Flag with Vertical Red Stripes: Slippery surface.

6.2.6 Black FlagW aved: S top In the p its fo r c o n su lta tio n next lap. Th is flag Is usua lly

d isp layed a long w ith the num ber of the ca r concerned fo r In fra c tio n of ru les of the c irc u it or a c t o f poor sportsm ansh ip .

If a co m pe tito r shou ld fa ll to obey the b lack flag a fte r It has been d isp layed to h im on fo u r co nsecu tive laps, th e Race D irec to r may In­s tru c t the T im ekeeper to s to p tim in g and sco ring the car.

Furled: W arn ing. You have co m m itte d a dangerous o r u nspo rts ­m anlike ac tion . D es is t or you w ill be penalized.

6.2.7 Black Flag with Orange DiscY our ca r has a m echan ica l fa u lt o f w h ich you m ay not be aware.

S top at your p it nex t lap.

6.2.8 Red FlagThe race Is stopped.Th is flag Is used exc lus ive ly a t the d isc re tio n o f the Race D irecto r to

s to p the race. W hen It Is shown, d rivers w ill s low dow n to a s low speed and be prepared to s to p at any tim e. No passing . They w ill proceed In a

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line, s lo w ly and ca re fu lly around the c irc u it to the p its w here they w iii be d irec ted fu rthe r. U nless it is sp e c itic a iiy authorized by the Race D irector and announced to a ii com pe tito rs , no service o f any k ind m ay be perfo rm ed on any cars from the tim e the red flag is show n u n til the race is restarted. Th is inc ludes cars w h ich m ay a lready be in the p its.

6.2.9 B lack and W h ite Checkered FlagEnd o f race. Take one co o i-o tt lap at reduced speed and s to p at the

pits.

6.2.10 C heckered and B lack F lags Shown TogetherIn te rrup tion o f p rac tice o r qua lify ing session . Take co o i-o tt lap and

stop at p its . Expect sess ion to be resum ed w hen tem pora ry d if f ic u lty is corrected.

6.3 Rules W hen Aw ay from P itsO nly a driver m ay perfo rm w ork on an au to m ob ile away from the

pits. A drive r may proceed on fo o t to h is p its fo r parts, equ ipm en t o r too ls; he o r h is co-driver m ay return to the car on fo o t only. It is no t per­m itted fo r the crew or any o the r person to render phys ica l a ss is tance in perfo rm ing such work. M arsha ls o r o ff ic ia ls m ay push a d isab led a u tom ob ile to a sa fe loca tio n w ith o u t penalty. It is not pe rm itted fo r a driver to push h is ca r excep t in the p its.

6.4 RULES OF THE GRIDS AN D PITS

6.4.1 U nifo rm sC rew m em bers sha ll w ear c lean un ifo rm s o r o the r app rop ria te and

safe a ttire a t a ii tim e s during a race in o rder to p resent the best p oss i­ble appearance to the pub lic . Tank to p s and s im ila r a ttire w iii not be perm itted.

6.4.2 Fue lingA ll fu e ling in the p its m ust be done by us ing IM SA-approved fu e lin g

equipm ent:

a. overhead rig w ith a m axim um overa ll he igh t o f 2 m eters (6 7 ” ), a s ing le 2-inch i.D. hose and a u to m a tic shu t-o ff valve between tank and hose, or

b. s tandard NASCAR-type 11-gallon cans.Both types m ust a lso be equ ipped w ith approved dry-break cou ­

plings. Approved overflow co n ta in e rs or d is c rim in a to r va lves m ust be used /ins ta iied . No leakage o r s p illag e o f fuel w ill be to lera ted .

Driver m ay rem ain in ca r and eng ine m ay be le ft runn ing du ring fu e l­ing opera tion on ly if a fire e x ting u ishe r is be ing m anned, it is fo rb idden fo r a crew m em ber to w ork underneath a car du ring fue ling .

6.4.3 O the r E qu ipm enta. A ir R egu lators - it is recom m ended th a t p ro tec tive cages be fitte d

around a ir regu la to rs to prevent breakage in case o f acc iden t.b. Face M a s k s - it is recom m ended th a t crew m em bers chang ing

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tire s w ear p ro tec tive fa ce m asks to prevent in tia la tio n o f brake pad dust.

c. S ieve B a tte ries ■ Slave ba tte ries o r a u x ilia ry s ta rtin g devices w ill be perm itted in tf ie p its du ring a race on ly if equ ipped w it f i an ap­proved sealed jack /rece p ta c ie unit.

d. F ire E xtin g u is tie r - Eacfi team m ust be equ ipped w it t i a fire ex­tingu isher o f a t least 10 lb. ABC rating.

e. Sparks - N o e lectric-d riven to o ls o r o the r e qu ipm en t w h ich may generate sparks are pe rm itted in the p its du ring a race.

f. C lo th in g - C rew m em bers engaged in fue l hand ling m ust w ear fire re s is tan t c lo th in g covering a il exposed sk in areas and p rotective goggles.

6.4.4 CrewsA to ta l o f fo u r crew m em bers are perm itted over the p it w a ll to per­

fo rm serv ice on the ca r d uring p it s tops. N o t counted in th is to ta l are a driver seated in the car, a driver ente ring or leaving the car, industry representa tives exam in ing a ca r’s equ ipm ent, tire s o r o the r com ­ponents, o r the crew m em ber m ann ing a fire ex tingu isher. (A ll o the r crew m em bers over the w a ll w ill be conside red w ork ing on the car.)

6.4.5 Pit TrafficIt Is s tr ic tly fo rb idden to d rive a ca r in reverse or aga in s t tra ff ic

under its own pow er in p it iane. A drive r w ho overshoo ts h is assigned p it m ust e ithe r com p le te ano ther lap o r he may be pushed by h is crew to his p it in reverse d irec tion .

A ca r m ay be pushed in the p its by its driver, its crew o r by o ffic ia ls , and it may be push-started in the p its w ith o u t penalty.

6.4.6 Removal from PitsCars m ay be removed from the p its during a race on iy w ith the ap­

proval o f the C hie f S teward. O therw ise , If a car is removed from Its pit, it w ill be assum ed It is be ing w ithd ra w n from th e race. C h ie f S teward w ill norm a lly perm it removal o f a car fo r necessary w ork to o inconve­n ien t o r hazardous to do In the pit, and w ill ass ign a m arsha l to observe the w ork done.

6.4.7 Gridding of AutomobilesA ll a u tom ob iles m ust be gridded fiftee n m inu tes p rio r to the

scheduied s ta rt o f an event, o r a t a tim e designated in the Supplem en­ta ry R egu lations. Any au to m ob ile a rriv ing a fte r the pub iished tim e m ay at the d isc re tio n o f the C h ie f S teward be p iaced on the back of the grid. The running o f eng ines during pre-race cerem onies w ill not be perm itted.

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7. OFFICIALSThe o ff ic ia ls respons ib ie fo r co n d u c tin g an IM SA event are o rg a n iz ­

ed as fo llo w s :

OTHER

STARTER TIMEKEEPER

STEWARDS

FLAG MARSHAL

COURSE MARSHAL

M EDICAL DIRECTOR

RACE DIRECTOR

TECHNICAL INSPECTOR

C O M M U N IC A TIO N SMARSHAL

E xcep t fo r the S tew ards, th e y m ay d e le g a te part o f th e ir d u tie s to ass is tan ts .

In F IA -lls te d events, the d u tie s o f the Race D ire c to r (C lerk o f th e Course) and the S tew ards d if fe r so m ew h a t fro m th o se o u tlin e d In th is chapter. (See the FIA In te rn a tio n a l S p o rtin g C ode, C ha p te r X).

7.1 SupervisionIn a d d itio n to th e se o ff ic ia ls , IM S A reserves th e r ig h t to a p p o in t a

person to eva lu a te and report on th e event.

7.2 Appointm ent of O fficialsThe Race D ire c to r and S te w a rd s are a p p o in te d by IM SA. O ther o f ­

fic ia ls are a pp o in ted s u b je c t to approva l o f IM SA.

7.3 ConductEvery o ff ic ia l Is expe c ted to c o n d u c t h im s e lf as a g en tle m a n , in a

m anner w h ich w ill re fle c t c red it o n the sp o rt o f a u to m o b ile ra c in g and on IM SA. IM SA m ay rem ove an o f f ic ia l ’s a p p o in tm e n t and m ay penalize h im if he fa i ls to co n d u c t h im s e lf p roperly .

7.4 Separation and Plurality of DutiesAn o ff ic ia l can have no re s p o n s ib ility o r a u th o r ity beyond th a t a t­

tached to h is appo in tm en t. However, e xcep t fo r the Race D ire c to r and the S tew ards, a person m ay ho ld m ore th a n one o ff ic ia l p o s itio n .

7.5 Race D irector (Chief Steward)The Race D irec to r is th e c h ie f execu tive a t an event and is re sp o n s i­

b le d ire c tly to IM SA fo r the co n d u c t o f the event. A c c o rd in g ly , he has the d u ty and a u th o r ity to :

a. Keep o rde r In c o o p e ra tio n w ith c iv il a u th o r it ie s re s p o n s ib le fo r p u b lic sa fe ty .

b. E xecu te th e p rog ram o f c o m p e tit io n s and o th e r a c tiv it ie s punc-

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tu a lly by d ire c tin g the d rive rs and th e ir ca rs, o ff ic ia ls and th e ir a s s is ta n ts , and o th e r p a rtic ip a n ts .

c. P revent in e lig ib le ca rs and d rive rs from ta k in g part.d. O rder in s p e c tio n o f any ca r in o rde r to v e rify its e lig ib il ity .e. A u th o rize changes o f d rive rs or cars.f. S e ttle p ro te s ts and d isp u te s .

g. D e te rm in e w he th e r c o n d itio n s are sa fe to co n tin u e the event, o r e lse postpone a co m p e tit io n , m o d ify the SR or a lte r the schedu le fo r reasons o f s a fe ty o r fo rce s beyond h is c o n tro l.

h. A sse ss p en a lties in acco rd a n ce w ith the IM SA CODE.i. R ep lace any o ff ic ia l no t ab le to perfo rm h is d u tie s .J. S uperv ise the d is tr ib u tio n o f aw a rds to e lig ib le c o m p e tito rs , k. C om p ile a report on a il a spe c ts o f the even t as requested by

IM SA.

7.6 StewardsS te w a rd s are a pp o in ted fo r th e ir know ledge , expe rience , proven

ju d g m e n t and s ta tu re in the s p o rt o f a u to m o b ile rac ing , in even ts not lis te d on th e F IA ca lendar. S te w a rd s a c t o n ly in a ju d ic ia l o r adv iso ry capac ity , and have no e xecu tive re s p o n s ib ility , e ith e r s in g ly o r co iiec - tive iy . The p rim a ry fu n c tio n s o f th e S tew ards are to:

a. A c t as a court o f inquiry, w hen requested by the Race D irec to r, to co n s id e r p ro te s ts and o th e r d isp u te s . They m ay ca ll and hear w itnesses, cons ide r evidence, and m ake re com m e n d a tio n s to the Race D irec to r fo r so lv ing such d is p u te s and assess in g pena lties .

b. A dv ise the Race D ire c to r on any m a tte rs w h ic h they fee l w il l im ­prove the co n d u c t o r s a fe ty o f th e event.

7.7 StarterThe S ta rte r o pe ra te s d ire c tly unde r the Race D ire c to r and co n tro ls

the co m pe tin g d rive rs from th e tim e th e ca rs ta ke th e ir s ta rtin g p os i­tio n s u n til the c o m p e tit io n is ended and a il ca rs have le f t th e rac ing c irc u it.

7.8 Tim ekeeper (Timer and Scorer)The T im ekeepe r and h is s ta ff a re re s p o n s ib le fo r the a ccu ra te tim ­

ing and sc o rin g of th e event. He p repares the o ff ic ia l re su lts , m a in ­ta in s o ff ic ia l q u a lify in g tim e s fo r co m p e tin g a u to m ob ile s , and fu r­n ishes tim ing and sco ring in fo rm a tion requested by the Race D irecto r.

7.9 Technical Inspector (Scrutineer)The T e ch n ica l In sp e c to r is respo n s ib le fo r ch e ck in g a il co m pe tin g

ca rs fo r sa fe ty and e lig ib il ity . He and h is a s s is ta n ts w il l c o n d u c t in ­sp e c tio n s a t th e Race D ire c to r 's request, and w il l report any cars w h ich he fin d s are unsa fe o r in e lig ib le .

7.10 Flag MarshalThe Flag M arsha l is re sp o n s ib le for re c ru itin g , tra in in g and a ss ig n ­

m ent o f race c o n tro l personne l a t co rne r s ta tio n s .

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7.11 Com m unications MarshalThe C o m m u n ic a tio n s M arsha i is re s p o n s ib ie fo r o pe ra tio n o f the

system used fo r tra n s m ittin g and rece iv ing in fo rm a tio n be tw een cen ­tra l co n tro l and the co rne r s ta tio n s .

7.12 Course MarshalThe C ourse M arsha i is re spo n s ib le fo r fin a l p rep a ra tion and

m a in tenance of the rac ing p lan t, and o th e r re la ted d u tie s ass ig n e d by the Race D irec to r.

7.13 M edical DirectorThe M ed ica l D ire c to r is re spo n s ib ie fo r s ta ff in g and o p e ra tin g the

event m e d ica l e s ta b lis h m e n t w ith q u a lif ie d p h ys ic ia n s , nurses and firs t a id personnel. H is p rim ary re sp o n s ib ility and purpose is th e tre a t­m ent and d isp o s itio n o f any in ju rie s incurred by the p a rt ic ip a n ts in the event.

8. PENALTIESA ny driver, entrant, o ffic ia l o r o the r p a rtic ip a n t w ho v io la te s these

ru les or the SR o f an event, a tte m p ts to b ribe anyone connected w ith an IM SA event o r a c tiv ity , or is party to a fraud o r o the r a c t p re jud ic ia l to IM SA and the good repu ta tion o f m o to rspo rts m ay be penalized ac­co rd ing to the nature of the o ffense by IMSA, the Race D irec to r o f an event, o r by a court convened by IMSA.

IM SA sha ll have the righ t to pub lish no tice th a t it has im posed a pena lty and the reasons there for, and the person or body referred to in such n o tice sha ll have no r igh t to a c t a ga in s t IMSA o r the person pub lish ing the notice.

8.1 Range of PenaltiesP enalties w h ich may be im posed, in o rder o f th e ir severity, are:

a. T im eb. Finec. D isq u a lifica tiond. Suspensione. Loss o f accrued po in tsf. Expu ls ion

8.2 FineA fin e o f up to $1000.00 m ay be im posed by IMSA, the Race D irecto r

o f an event, o r a court appo in ted by IMSA. F ines m ust be paid w ith in

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one week, and a m em ber’s co m pe tit io n priv ileges are au to m a tica lly under suspension u n til tf ie fine is paid. A ll fines sha ll be rem itted to I MSA, P.O. Box 3465, B ridgeport, Conn. 06605.

8.3 DisqualificationThe Race D irecto r may d isq u a lify a driver, an en tran t or an

a u tom ob ile from co m pe tition , in w h ich case h is righ ts to any awards in the co m pe tit io n are fo rfe it, and the o ffic ia l resu lts w ill advance the next co m pe tito rs accord ing ly .

8.4 SuspensionIMSA or a co urt appo in ted by IMSA m ay suspend a m em ber’s

p riv ilege to take part in co m pe tit io n fo r a d e fin ite o r ind e fin ite period.

8.5 Loss of PointsLoss o f accrued po in ts earned by a c o m pe tito r m ay be im posed by

IMSA or a court appo in ted by IMSA.

8.6 ExpulsionIMSA or a co u rt appo in ted by IMSA may expel a m em ber fo r serious

offenses.

9. PROTESTSO nly an Ind iv idual e n tra n t or driver tak ing part in a co m p e tit io n may

ente r a p ro tes t in th a t co m pe tition . He may p ro tes t any irregu la rity , dec is ion , ac t or om iss io n o f the prom oter, o ffic ia l, e n tra n t o r driver w h ich he conside rs to be a v io la tio n o f the IM SA CODE or SR, except he may not p ro tes t the refusal o f an entry.

9.1 FormP ro tests m ust be m ade in w rit in g , spec ify ing the ru le considered to

have been v io la ted , accom pan ied by a p ro tes t fee o f $ 100.00 and signed by the party m ak ing the protest.

9.2 Time LimitsP ro tests m ust be received by the Race D irec to r w ith in the fo ilo w in g

tim e lim its :a. A g a in s t the va lid ity o f an entry, q u a lific a tio n o f an entrant, driver

o r car: P rior to schedu led c los in g tim e fo r Techn ica l Inspection .b. A ga ins t hand icap or s ta rting position : Im m ed ia te ly upon the ir

announcem ent.c. A ga ins t a m is take or irregu la rity during a co m pe titio n : 30 m inu tes

a fte r the end o f the co m pe tition .

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d. A g a in s t the resu lts o f a co m pe tit io n ; 30 m inu tes a fte r p os ting o f the resu lts .

9.3 Protests Against CarsW hen a p ro tes t is m ade aga ins t a ca r’s e lig ib ility , the p ro te s to r

m ust post w ith the Race D irector, in a dd itio n to the fo rm s and fees spec ified in 9.1, a cash bond adequate to cover the co s ts o f any d isassem b ly , insp e c tio n and assem b ly required. The am oun t o f th is bond w ill be de te rm ined by the Race D irec to r and T echn ica l inspecto r.

if the ca r is found to con fo rm to th e ru les and the p ro tes t is d isa llow ed , th is bond w ill be fo rfe it and w ill be used to cover the co s ts involved.

if the ca r is found to be in v io la tio n o f the ru les and the p rotest is a llow ed , th is bond w ill be re turned to the p ro tes to r and the protested party w ill s tand ail expenses involved in the inspection , and a d d itio n a l­ly is su b je c t to pena lty assessed by the Race D irector.

if an e n tra n t or d rive r o f a p rotested ca r does no t a llo w inspec tion under these te rm s, he w ill be d isq u a lifie d by the Race D ire c to r im m ed ia te ly .

9.4 Disposition of ProtestsThe Race D irec to r w ill as soon as p rac tica b le e ithe r pe rsona lly hear

a il parties and w itnesses involved in the d ispu te , o r e lse he may request th e S tew ards to conduc t such a hearing to cons id e r te s tim o n y and o the r evidence. T fie Race D irec to r w ill d ispose o f the p ro te s t and w ill adv ise ail parties concerned of h is d ec is ion , i f a dec is io n ca nn o t be m ade im m ed ia te ly , he w ill advise the tim e and p lace the jud g m e n t w ill be announced.

A il parties concerned sha ll be bound by the jud g m e n t given, excep t in case o f a va lid appeal.

9.5 AwardsThe prizes and o the r awards may be d is tr ib u te d when the p ro tes t

period has e lapsed, or a t such tim e as a il p ro tes ts a ffe c tin g the s ta n d ­ings have been settled .

9.6 Malicious ProtestsIf a p ro tes t is judged to have been filed w ith m a lic io u s or sp ite fu l

in ten t or o the rw ise in bad fa ith , the p ro tes to r may be found g u ilty o f v io la tin g A rtic le 8 o f these ru les and m ay be penalized.

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10. APPEALSA person or o rgan iza tion may f ile an appeal a ga ins t a judgm ent a f­

fe c tin g film and im posed by the Race D irec to r o f an event or by an IM SA firs t court, p rovided the a ppe llan t f irs t g ives n o tice o f h is in ten ­tio n to appeal to the Race D irec to r o r the court.

The IMSA C om m iss ione r (Ref: A rt. 1.4) is respons ib le fo r the orderly a dm in is tra tio n o f appea ls. He w ill decide on beha lf o f IMSA w he ther o r not an appeal shou ld be considered and heard, and h is d ec is ion w ill be fina l, in case the IMSA G orrim iss ioner dec ides aga in s t cons ide ring o r hearing an appeal, the appeal fee w ill be returned.

10.1 EffectG iving such n o tice o f in ten tio n to appeal w ill not a ffe c t any pena lty

o r jud g m e n t being appealed. The Race D irector, however, may w ithh o ld paym ent o f any prizes w h ich w ill be a ffe c te d pend ing the o u t­com e .of such appeal.

10.2 FormAppea ls m ust be in w rit in g , s igned by the appe llan t, accom pan ied

by an appeal fee o f $250.00, and received a t IMSA headquarte rs w ith in ten days o f announcem ent o f the jud g m e n t being appealed.

10.3 Hearingi f IM SA decides to hear an appeal, a court w il l be named. A ll parties

w ill be adequate ly advised o f the tim e and p lace o f the hearing and w ill be e n tit le d to ca ll w itnesses, to represent them se lves or be represented by advocates, and to p resent evidence in beha lf o f the ir cases.

10.4 JudgmentThe court may upho ld o r deny an appeal, w aive o r increase

pena lties prev iously im posed, levy fresh penalty, and w ill determ ine d is p o s itio n of the appea l fee.

The co u rt sha ll n o t o rder any co m p e tit io n to be rerun.IMSA sha ll have the r igh t to pub lish the jud g m e nt o f the co u rt and to

use the nam es o f pa rties involved. These persons sha ll have no righ t to a c t a ga in s t IMSA, th e IMSA C om m iss ione r or w hom ever pub lishes the judgm ent.

10.5 IMallcious AppealsIM SA m ay pena lize the au tho r o f an appeal judged to be m a lic ious ,

sp ite fu l o r w ho o the rw ise a c ts in bad fa ith .

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11. AUTOMOBILESIM SA w ill pub lish ru les and sp e c ific a tio n s fo r va rious c lasses o f

cars e lig ib le to com pete.

11.1 AutomobileThe a u tom ob ile sha ll be d e fined th roughou t the ll\/ISA CODE as con­

s is tin g of the bod ysh e ll/ch a ss is un it, and the IM SA approved eng ine b lo ck or crankcase, it m ust have a t least fo u r w hee ls n o t in a line, tw o o f w h ich m ust e ffe c t the s teering and at least tw o the propu ls ion .

11.2 TiresIMSA w ill regu la te the e lig ib ility o f tire s in its sanctioned co m pe ti­

tions. in o rder th a t no co m p e tito r sha ll have any tire advantage in q ua lify ing or a race, IMSA may:

- P roh ib it the use o f a brand, m odel, s ize or rubber com pound, un less it is read ily ava ilab le fo r sa le to a il co m pe tito rs th roughou t an event.

- im pound and insp e c t a c o m p e tito r ’s tires.- in som e c ircum stances require a c o m p e tito r to use the sam e tires

as he used in qua lify ing .

11.3 FuelA ll cars m ust use a read ily ava ilab le pum p fue l. Upper cy linde r

lub rica tio n or any non-oxygen-bearing add itive may be added d ire c tly to the gaso line provided the s p e c ific g rav ity o f the re su ltin g fue l does no t exceed .750 as m easured by a hydrom eter. IM SA reserves the righ t to check any fue l a t any tim e during a co m pe tition .

IM SA m ay requ ire in an event S upplem enta ry R egu la tions th a t a il co n te s ta n ts use the sam e k ind o f pum p fue l, o r the fue l provided a t the c irc u it. C om pe tito rs are responsib le fo r the tra n sp o rta tio n and se cu ri­ty o f th e ir fue l from the tim e it is d ispensed to them th rough the c irc u it fa c ilitie s .

11.4 Mechanical Condition and Technical InspectionEach entered ca r m ust be inspected and approved by the Techn ica l

insp e c to r before it w il l be a llow ed to p a rtic ip a te in co m p e tito n or p rac­tice . Gars dam aged or a ltered a fte r they have been approved a t inspec­tio n are su b je c t to re inspection and approval. IM SA w ill m ake the fina l d ec is ion on the sa fe ty and e lig ib il ity o f an acc ident-dam aged vehicle . M a jo r body com ponen ts m ust be m a in ta ined in norm al pos itio n th ro u gh o u t the co m pe tition . Q uestionab le cars are su b je c t to the dec i­s ion o f the Race D irector.1. Techn ica l Inspection w ill cover:

a. E lig ib ility under IMSA rules.b. S a fe ty of the des ign and co ns tru c tion per inspec tion fo rm .c. A ppearance. C lean and neat, no o ld damage.d. id e n tific a tio n num bers m ust be p laced on both doors and hood,

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m ust be non-re flective and leg ib le to tf ie sa tis fa c tio n o f the C hie f Tim ekeeper,

e. Racing tire s — m andatory, un less S upplem entary R egu lations provide o therw ise ,

f. Leakage — not a llow ed,g. Driver sa fe ty equ ipm ent, per A rt, 5,11,h. C om p liance w ith sponsor advertis ing requ irem ents,

2, Inspection :a. IMSA reserves the r igh t to im pound and Inspect cars com peting

in an event,b. The tim ing , loca tion , m ethod and type o f oar Inspection , and the

num ber o f veh ic les to be Inspected a t any event w ill be de te r­m ined by the C h ie f Techn ica l Inspector,

c. It Is the re sp o n s ib ility o f the driver o r ca r ow ner to prepare a car fo r Inspection w hen requested to do so by the C h ie f Techn ica l Inspector, Any expense Incurred, excep t In the case o f a protest, sha ll be the lia b ility o f fhe owner,

d. A d m ittance to any area in w h ich Inspections are being m ade Is co n tro lle d by the C h ie f Techn ica l Inspector,

3, S afe ty R equ irem ents fo r a ll cars:a. A s ix p o in t d rive r res tra in t sys tem of approved design m ust be

Insta lled,b. Passenger seats, seat backs, m ats and o the r loose gear m ust be

removed, un less car ru les spec ify o therw ise,c. S teering lock m echan ism s m ust be removed,d. W here app licab le , a s tu rd y m eta l s trap m ust be Insta lled under

the fro n t o f the p rope lle r sh a ft to p revent the sh a ft from d ropp ing in case o f fa ilu re o f the coup ling ,

e. An approved net covering the d rive r’s w in d o w open ing m ust be secure ly Insta lled w he ther o r not the w indow rem ains open,

f. C enter top o f s tee ring post m ust be padded w ith p roduction cente r cover or a t least tw o Inches of a res ilien t m ateria i,

g. W indsh ie ld sa fe ty c lip s , 3 each at the top and bottom , bo lted or riveted to the body, and spaced at leas t 12” apart, m ust be In s ta ll­ed, S afe ty g lass is required fo r w indsh ie ld ,

h. Rear w indow straps, 1” x 1/8” , bo lted or riveted to body at top and bottom o f g lass, m ust be ins ta lled , where app licab le ,

I, S ca tte rsh le lds or exp los ion -p roo f be ll hous ings are required on a ll cars w here the fa ilu re o f fhe c lu tch /flyw h e e l cou ld create a hazard to the driver,

j. A ll cars m ust be equ ipped w ith a m aste r e lec trica l c irc u it breaker (s topp ing engine and fue l pum ps) w h ich Is eas ily a ccess ib le from both in s id e and o u ts id e the car, o r w ith tw o c irc u it breakers — one access ib le from ins ide and one outs ide . The c ir ­cu it breakers m ust be c lea rly m arked by a spark In a b lue triang le ,

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k. A ll ca rs m ust have a t least tw o opera ting red brake lig h ts and tw o ta ll lig h ts w h ich w ill be Illum ina ted during darkness or periods o f ra in. A m ber brake lig h ts w ill not be perm itted .

I. H ea d lig h t bu lbs m ust be protected a ga in s t breakage. H ead ligh ts m ay be taped o r the bu lb (only) m ay be rem oved and replaced w ith m eta l or fib e rg la ss so lid p la te o f sam e shape as bu lb and fitte d in the sam e m anner, i t shou ld be p oss ib le to remove p la te easily , in ­s ta ll and opera te head ligh ts . H ead ligh t m oun ting recep tac les and fu n c tio n a l w irin g m ust rem ain ins ta lle d a t a ll tim es,

m. E ffec tive in te rna l and externa l rear v iew m irro rs m ust be insta lled, n. S a fe ty fue l ce ll o f an approved type m ust be Insta lled . D rybreak

fue l f i l le rs are required on a ll GT cars and are h igh ly recom m ended on AC and RS cars. The bodyw ork m ay be m od ified to Insta ll f il le rs and breathers so they do not p rotrude beyond the p lane o f the ou ts id e m oun ting surface. C heck valves m ust be in ­s ta lle d to prevent loss o f fue l from fi l le r and vent. C atch ta n k or an IMSA approved d is c rim in a to r valve m ust be used on the vent tube to prevent sp illag e during fue l s tops. No s p illag e w il l be to lera ted . R efue ling equ ipm ent loca ted w ith in the driver’s com partm en t m ust be sh ie lded so as to prevent hazard to the drive r In event o f rupture. Vent tube m ust extend to the o u te r body su rface and d irec ted away from hot equipm ent,

o. H oods, deck lid s and m ovable body se c tion s m ust be secured w ith supp lem enta l p ins or s traps. La tches m ay be de-activated. On cars w here a key is required to open the trunk lid , the iock m ust be de-activa ted o r may be removed,

p. S upp lem enta i p ins used to secure m ovable body sec tions (such as hoods, doors, fenders, lid s and rem ovable tops) m ust have a t­ta ch in g cab les to prevent acc id e n ta l loss o f pin.

q. N o concea led pressure type conta ine rs, feed lines or ac tu a ting m echan ism s are perm itted , even if inoperab le,

r. N o part o f a ca r may touch the g round w hen any tw o o f its tire s on th e sam e s ide are defla ted ,

s. O rig ina l door la tches m ust be re ta ined on a ll cars, t. Fu ll ro ll cages of approved design inc lu d in g a s ide bar on the

d rive r’s s ide are m andatory. It Is recom m ended th a t th e s ide bar extend to the o u te r sk in o f the door,

u. A fire e x tingu ishe r o f the app rop ria te type and size sp ec ifie d fo r the respective ca tegories m ust be carried and in ce rtifie d w ork ing o rder a t a ll tim es.

V. A il GT cars m ust be fitte d w ith a fro n t and rear to w in g eye, a c ­cess ib le and s tro n g enough to pe rm it th e re trieva l o f the ca r by m eans o f a f la t tow vehicle.

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RECOMMENDED ROLL CAGE

IM SA RS SEDANSM ain S tructu re : I V 2 ” x .090”Secondary Braces: IV 4” x .090”

IMSA GT AND AMERICAN CHALLENGE M ain S truc tu re 1 3/4” x .090

MATERIAL: S eam less M ild Steel Tub ingA ll d im e n s io n s are recom m ended m in im um .For equ iva len t s tre n g tti in a llo y stee l tub ing , see m anu­

fa c tu re r’s re ference c fia rts .No a lum inum or o ttie r non-ferrous m ate ria l perm itted .

11.5 IMSA GT Category

11.5.1 PurposeThe IMSA GT C ategory Is des igned to p rom ote co m pe tit io n am ong

drivers and m anu fac ture rs In an annua l series o f IMSA- sanctioned p ro fess iona l race events.

11.5.2 EligibilityIM SA GT ca tegory a u tom ob iles are recognized In tw o d iv is ions :

Grand Touring and P rototypes.(a) Grand Touring (GT) - IMSA recognized p roduction-based cars w ith

engines over 2.8 lite rs (GTO) and cars w ith eng ines under 2.8 lite rs (GTU).lncludes m akes and m ode ls fo rm erly hom o loga ted by FIA In G roups 1-4 of th e A ppend ix J e d itio n s In e ffe c t a fte r January, 1976 and m ode ls hom o loga ted by FIA In G roup A and B o f the 1982-83 A ppend ix J and o ther vo lum e-produced m ode ls recogn iz­ed by IMSA.

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In a dd itio n to cars e lig ib le , the fo llo w in g cars are recognized by IMSA;

C hevro le t Cam aro 1982 C hevro le t C orve tte 1983 C hrys le r LaserD atsun 240Z, 260Z, 280Z, 300Z, ZX and TurbosDodge DaytonaFerrari Boxer 512 (GTX only)Ford M ustang / M ercury Capri 1979 onw ardsJaguar XJS V12P ontiac F lero and FirebirdPorsche 9 1 4 /6Toyo ta C e lica Supra

(b) Prototypes - Inc ludes IMSA Experim enta l GT (GTX) cars and IMSA GT Pro to types (GTP) ca rs as defined in these rules. GTX cars derive from m akes and m odels Included In 11.5.2 (a) and o the r ca rs o f a GT characte r b u ilt up from IM SA-approved com ponents. GTP cars have no m in im um p rod u c tio n requ irem ent, are tw o-seat rac ing m achines w h ich confo rm to spec ia l ru les developed by IMSA.

11.5.3 Recognition FormsEntrant may be required to fu rn ish o ffic ia l recogn ition fo rm s fo r

m akes and m ode ls described In 11.5.2 (a) and (b) if so requested by the IMSA Techn ica l Inspecto r a t an event. FIA recogn ition fo rm s fo r cars hom o loga ted in G roups 1 th rough 4 and G roups A & B (1982) m ay be secured from ACCUS, FIA, 1500 S kokie Blvd., N orthbrook, IL 60062, phone (312)272-0090.

11.5.4 Fuel TanksApproved sa fe ty fue l ce lls cons truc ted to FIA FT-3 or FTA standards

are required In a ll cars. In GTO and GTU cars, tanks m ust be p os itioned as c lose ly as p rac tica b le to th e standard loca tion . F ille r ports and vents m ay be re loca ted b u t m ust n o t p rotrude beyond the p lane o f the coachw ork and m ust be Ins ta lled so th a t no fue l w ill leak. D ry-break fu e lin g coup ling s are required.

M ax im um fue l ca pa c ity (inc lud ing the ce ll, surge ta n k and f ille r p ipes) Is regu la ted accord ing to eng ine d isp lacem en t:

up to 2800 cc -110 lite rs (29.1 gal.)over 2800 cc and a ll GTP -120 lite rs (31.7 gal.)

11.5.5 Minimum WeightsA ll cars sha ll m eet o r exceed an o ffic ia l m in im um w e ig h t as raced,

b u t w ith o u t fue l and driver, as fo llo w s :

GTO per FIA m in im um w e ig h t sca le fo r 1981 G roup 4 cars, e xcep t th a t m ode ls w ith pushrod-operated va lves m ay w e igh 15% less. A ll

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cars under 3000 c c - m in im um w e igh t 1900 ibs. G roup B cars m ust w e igh as per 1983 FIA G roup B w e igh t scale,

GTU per IMSA m in im um w eigh t sca le:■ 4 cy lin d e r pushrod 2-vaive eng ines 0.7 ibs/cc- o the r 2-vaive conven tiona l eng ines 0.8 ibs/cc- 2 -vaive conven tiona l tu rbocharged eng ines up to 2 liters

0.85 ibs/cc- R otary eng ines (carbureted only) 0.9 ibs/cc -4-vaive conven tiona l eng ines 1.0 ibs/cc- M in im um w e igh t any car 1600 ibs

GTX per F iA m in im um w e ig h t sca le fo r 1981 G roup 5 cars, m inus a to le rance of 1 0 % , except th a t m ode ls w ith pushrod-operated va lves are a llow ed a to le rance o f m inus 15% , and those w ith 4-vaive cy lin d e r heads are a llow ed a to le rance ot m inus 5% . Ab­so lu te m in im um w e ig h t fo r any car: 850 KG (1879 ibs).

GTP per spec ified ru les

FIA Minimum W eight Scale

Displacement '81 Group 4 ’81 Group 5up to 3000 cc 2083 ib 1896 ib

3500 cc 2216 ib 2017 ib4000 cc 2370 ib 2138 ib4500 cc 2469 ib 2260 ib5000 cc 2579 ib 2348 Ib5500 cc 2701 ib 2458 Ib6000 cc 2800 ib 2546 ib6500 cc 2888 ib 2623 ib7000 cc 2954 ib 2690 ib7500 cc 3009 ib 2734 ib8000 cc 3042 ib 2767 ib

over 8500 cc 3230 ib 2932 ib

11.5.6 Authorized Modifications - GTO and GTU

GTO and GTU cars are regu la ted by the fo llo w in g rules, based genera lly upon the 1981 F iA A ppend ix J, A rtic les 261 and 265 for G roups 2/4, am ended by IMSA fo r app lica tio n in the U.S. if a GTO or GTU ca r is found to be m o d ifie d beyond these rules, the C h ie f Steward m ay a llow the e n tra n t to com pete in the GT Pro to type d iv is ion .

G roup B cars w ill be prepared to 1983 F iA Group B rules.a. T oo ling of o rig ina l, or hom o loga ted rep lacem ent m echan ica l

parts is perm itted.b. Engine cy linde r head and valves: in add ition to the m o d ifica tio ns

p erm itted in (a.), valves, valve guides, valve springs, sh im s and re­ta iners are free, excep t it is no t perm itted to change the loca tion and driv ing system o f the cam sha fts . A valve tra in g ird le m ay be

26

added to the valve tra in assem bly. M ode ls w ith a s tandard d isp lacem en t less than 2000 cc may be fitte d w ith a 4-valve cy lin d e r head of any o rig in . On o the r m ode ls It Is perm itted to u tilize IMSA approved a lte rna tive heavy d u ty cy lin d e r heads of standard design. By s tandard des ign Is m eant the sam e num ber and loca tion o f valves, ports and spark p lugs as the o rig ina l.

c. Engine Induction system : Free, except th a t tu rbocha rg ing Is not perm itted unless recognized fo r a given m ake and m ode l or ap ­proved by IMSA on an Ind iv idual basis. E lig ib le tu rbocharged cars in GTO and GTU are res tric ted to one tu rbocha rger and w ill be rated at 1.4 x th e ir actua l d isp lacem en t.

d. Engine B lock: It Is perm itted to Increase ca pa c ity by boring and s trok ing p rov id ing the resu ltan t d isp la cem e n t does not exceed the ca tegory lim it. R eduction o f ca p a c ity to a lesser ca tegory by s leeving and/or des trok ing is a iso perm itted . In bo th Instances the series p roduction b lo ck delivered in a veh ic le m ust be reta ined.

e. Engine Exhaust System : Free, p rovided th a t th e outle t(s) are loca ted rearward o f the driver com partm en t and no m o d ifica tio ns are m ade In th e coachw ork or floorpan . R otary eng lned cars m ust use an I M SA-approved m uffle r. Mazda part #0000-08150 or an ap­proved equ iva len t s ile n c in g system w ith a m axim um record ing of 105 db a t 50 ft.

f. Engine Bearings: M ay be replaced by o the rs of th e sam e type.g. Engine G askets: Free.h. Engine Lub rica tion System : O il sum p Is free and o rig ina l o il pum p

m ay be m od ified . A d d itio n a l o il pump(s) may be added. Dry sum p lub rica tio n Is perm itted ; ta n k may be loca ted In the passenger seat fo o tw e ll or beh ind the rear bulkhead.

I. O the r Engine C om ponents: C rankshaft, p is tons, rings, w ris tp ins , connecting rods, m oun tings , coo lin g fan and w a te r pum p are free. Fuei pum ps are free bu t m ust be loca ted o u ts ide drIver/passenger com partm en t.

j. Engine Loca tion : M ode ls deriv ing from FIA G roup 4 (1976-81) and FIA G roup A (1982), the engine may be free ly p os itioned w ith in the standard engine com partm en t. In vo lum e-produced m ode ls deriv­ing from FIA G roup 1 (1976-81), and s im ila r IM SA-approved m odels, the eng ine m ay be re loca ted so th a t the fo rem os t spark p lug hole co in c id es w ith the ve rtica l p lane created by the cente rline of the fro n t wheel hubs, and the s tandard fire w a ll may be m od ified in accordance w ith paragraph 11.5.6(s).

k. Drive Train: Gearbox and transax le are free bu t m ust rem ain in the series produced loca tion . L im ited s lip o r se lf- lock ing d iffe re n tia l may be fitte d . Q u ick change fin a l d rive assem b ly is perm itted but the type o f ax le (live o r Independent) m ust rem ain as produced. M oun tings, gear ra tios , fin a l drive ra tios, sha fts ,jo in ts , and c lu tch are free.

27

I. S uspension: It Is pe rm itted to s treng ttien , m o d ify o r s u b s titu te o rig ina l suspens ion com ponents, re loca te suspens ion m oun ting po in ts , su b s titu te b ush ings and jo in ts . Types of springs, m oun t­ing po in ts and m ethods o f a tta ch m e nt are free. A n ti-sw ay bars m ay be free ly added o r removed. A x le loca tin g devices m ay not pass th rough bodyw ork; however, the rear sea tw e ll m ay be covered flu sh w ith the top o f th e w e ll (m ln. th ickness , .035” ) pro­vided the standard bodyw ork undernea th Is re ta ined. Th is cover w ill be cons ide red the flo o r/b od yw ork fo r th is se c tion of the car.

m. S teering: Type and m oun ting o f s tee ring Is free, n. W heels and T ires: M axim um co m p le te wheel and tire section

w id th s based on eng ine d isp la cem e n t m ay not exceed: up to 3000 cc -1 3 ”

5000 cc - 14”6000 cc -1 5 ”

over 6000 cc -1 6 ”(1/2 ” to lerance)

A ll fo u r w hee ls m ust have the sam e d iam eter; m ethod of a tta c h ­m ent Is free. T rack d im ens ion Is lim ited by s a tis fa c to ry Inner tire c lea rance and any m axim um perm itted car w id th ,

o. E lec trica l System : Free, excep t th a t m ain head ligh ts and tw o ta ll/s to p lig h ts m ust be loca ted In s tandard p os ition . T a ll/s to p lig h ts m ust be opera tiona l at a ll tim es. H ead lam p g lass m ay be removed and the open ings covered w ith a f la t o r Id en tica lly shaped p la te fo r d ay tim e events. B atte ry m ust be loca ted o u ts ide the drIver/passenger com partm en t and secure ly fastened unless series produced o the rw ise . Dual Ign ition Is perm itted on ly If m ake/m ode l Is so produced by m a nu fac ture r In series p roduction form .

p. W ate r R adiators: Size and ca pa c ity Is free b u t m ust rem ain In the s tandard loca tion ,

q. Brakes: M aste r cy linde rs , ca lipers, ro to rs and drum s are free, but m ust rem ain In the s tandard lo ca tio n fo r the m ake and m odel,

r. Cables and Pipes: May be free ly m od ified or re loca ted excep t tha t fuel and h igh tem pera ture liqu id p ipes sha ll n o t pass th rough driver's com partm en t un less they are arm ored,

s. C oachw ork Is defined as a ll externa l parts o f the car touched by the a lrs tream , and a ll v is ib le In terna l parts o f the drIver/passenger com partm en t. The o rig ina l externa l shape and m ateria l o f the coachw ork m ust be m a in ta ined, excep t the floo rpan m ay be replaced by a co n tinuous fla t m eta l sheet, p rov id ing the m anu fac­tu re r’s d im e n s io n s from the roo f to flo o rp la n are m a in ta ined. A rep lacem ent m eta l fire w a ll may be Insta lled In the o rig ina l loca ­tion . It Is recom m ended tha t such s u b s titu te floo rpans and fire w a lls be cons truc ted o f stee l w ith a m in im um th ickne ss of

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.032” . The m ate ria l o f eng ine and luggage com partm en t lids, doors and fenders is free. Doors m ust fu n c tio n in th e ir o rig ina l m anner. Fender fla res are perm itted and w ill be approved by IMSA on an ind iv idua l basis, it is perm itted to vent the rear fenders fo r coo lin g purposes. The vent m ust fo llo w the c o n to u r o f the lead ing edge of the fender, m ust be free of a ll e x tens ions and p ro trus ions and m ay not cover an area g reater than 24 square inches, inner fender pane ls may be m od ified but m ust enc lose the eng ine co m ­partm en t w ith o u t gaps or vo ids. Any k ind of coach w o rk re in fo rce ­m ent is perm itted . Passenger seat, rear seat and a il in te r io r tr im m ay be removed. R ig id m e ta llic fire w a lls , fla m e and leak proof, m ust be ins ta lled to separa te the driver co m pa rtm e n t from the fue l and engine com partm en ts . A m anda to ry fire e x ting u ishe r of the inert gas type (H alon o r Freon) w ith a m in im um ca pa c ity o f 10 ibs. m ay be loca ted in the passenger com partm en t, m ust be operab le by the driver, and from the o u ts ide o f the car, and m ust be c lea rly m arked w ith red c irc les co n ta in ing the le tte r “ E” . Safe­ty, d rive r co m fo rt and co m m un ica tion s equ ipm en t are the on ly item s a llow ed in the passenger com partm en t. E x te rio r decora tive s tr ip s m ay be removed. B um pers and any pro trud ing b rackets w h ich are not in tegra ted w ith the su rround ing coachw ork m ay be removed. The m ateria l o f in teg ra ted type bum pers m ay be chang ­ed b u t they m ust re ta in s tandard d im e n s io n s and shapes. In add i­tion to these m o d ifica tio ns , cars derived from FIA G roup 1 (1976-81), and Group A (1982-83), and o the r m ode ls approved by IMSA over 2.8 lite rs m ay free ly m odify , ligh ten or re in fo rce the chass is provided the standard w hee lbase and o rie n ta tio n to s ta n ­dard coachw ork are m a in ta ined. S ide w indow s and w in d in g m echan ism m ay be removed. N on-tin ted su b s titu te glazed m ateria l m ay be used in the s ide and rear w in d o w s provided it is o f th e sam e shape, d im e n s io n s and c o n to u r as th e o rig ina l,

t. Rear aerodynam ic devices are lim ite d to:1. A s p e c ific s p o ile r approved by IM SA designed by and availab le

from the m anu fac tu re r o f a m ake and m ode l and w ith no fu rthe r add itio ns o r m o d ifica tio ns , or

2. A spo ile r w h ich con fo rm s to the fo llo w in g crite ria :- M ust be f itte d to the rearm ost part o f the coachw ork w ith o u t

p ro trud ing beyond the perim e te r co n to ur o f the coachw ork as view ed from above.

- M ax im um heigh t 6 ” above th e c o n to u r o f the s tandard coachw ork (see diagram ).

- M ust not be ad ju s ta b le from w ith in the car.- No a ir m ust pass between device and coachw ork.

29

I I

** / ' :ai

Recognized Aerodynamic Devices

BM W Part # MS ■ DM -1 D atsun Part # 99996 - R8201 M azda Part # 0000 - 07 - 116B Porsctie Part #911 51201020

u. F ront aerodynam ic device m ust be ioca ted be iow the piane of the wheei hubs and be w ith in the perim e te r co n to ur o f the coachw ork as v iew ed from above.

V. O ther op tio n s perm itted :■ ins trum en t panei- servo s teering- s tee ring rods- on-board ja ck in g system

11.5.6.1 Notes

1. Porsche RSR Carrera is perm itted op tiona i crankcase part no. 930-10191400, 930-10191500 o r 930-10191600, and crankcase part no. 930-10201400 3.5 iite r d isp iacem ent.

2. Mazda RX-7 is perm itted op tiona i periphera i port ro to r housing.3. Ford M ustang and Capri 1979 onw ards may use the Ford 351 c.i.

engine.4. C hevro ie t C am aro and Pontiac F irebird 1982 onw ards may use a

GM 350 cy linde r b iock.5. Pontiac F ie ro is perm itted to use the rep iacem ent space fram e

chassa is approved by iMSA.

11.5.7 Experimental GT (GTX)Cars recognized in 11.5.2(a) are regu ia ted by these rules. A il

m o d ifica tio n s perm itted fo r cars in GTC and GTU are perm itted in a dd itio n to the fo llo w in g :

a. Too ling o f o rig ina l or rep iacem ent m echan ica l parts is perm itted .b. C oachw ork/C hassis :

i C oachw ork: The ou ts id e su rfaces shape and m ateria l o f the o rig ina l coachw ork m ust be re ta ined and m ust rem ain iden­tifia b le , excep t fo r the add itions , m o d ific a tio n s and s u b s titu ­tio n s perm itted in these rules. C vera li leng th of the orig ina l

30

coachw ork is regu la ted by the FIA or M VM A hom o loga tion form ; m ax im um overa ll w id th : 79” /200cm fo r cars under 5,000 g o ; over 5,000 cc 83 ” /210cm.

II C hassis : Free. S tandard w hee lbase m ust be re ta ined. A m in im um d is tan ce of 7 ” from th e to p of the o rig ina l doo r s ill to the ground w ith fu ll tanks but w ith o u t driver m ust be m a in ­ta ined.

III Engine and luggage com partm en t lid s m ay be co ns tru c te d of su b s titu te m ateria l and may be ven tila ted provided th e ir o rig ina l ou ts id e shape and d im ens ions are re ta ined. For fro n t engine, rear-wheel d rive cars, a hood scoop m ay be added to accom ­m odate the Induction system . M axim um height, SVz” above the p lane of the s tandard hood.

Iv D oors and doo r openings: The perim e te r shape and d im ens ion o f fhe o rig ina l doo r open ing and door m ust be m a in ta ined a t the door opening. The oute r sk in Is free. Door h inges and handles may be re loca ted and replaced bu t m ust rem ain and fu n c tio n In th e ir o rig ina l m anner.

V G lass Surfaces: E xcep t fo r the w in d sh ie ld w h ich m ust rem ain as series produced, the transparen t m ate ria l Is free. O rig ina l d im ens ions and shapes of a ll g lazed areas and open ings m ust be m a in ta ined . The low er edge o f fhe rear s ide w indow s m ay be relieved fo r tire c lea rance and the w indow m ay be vented for d rive r co m fo rt only.

vl Fenders: Free in shape and m ateria l but are lim ite d as fo llow s:- O rig ina l w hee l arch m ust be reta ined.- Fender m ust e ffe c tive ly cover the w ho le w id th o f the

w hee ls and tire s fo r one-th ird o f th e ir c ircum ference .-A n y rearward opening m ust be closed by screens or

louvers.

vll A ll bum pers and bracke ts may be removed. D oor s ills may be extended to fu ll w id th o f bodywork,

v lll Ins ide C oachw ork: Free, excep t d rive r's seat m ust be loca ted e n tire ly on one s ide of the cen te rline o f th e car. No sharp angles on dashboard.M e ta llic F irew a lls - F lam e and leakproof, m ust be ins ta lle d to d e fin e and separa te the driver com pa rtm e n t from the fue l and eng ine com partm en ts.F loor may be m od ified o r replaced provided a m in im um depth of 4 Inches below th e o rig ina l door s ills is m a in ta ined In the fo o tw e ll fo r both drive r and passenger spaces. The fo o tw e ll Is defined as the flo o r panel fo rw ard o f a ve rtica l p lane crea ted by the rean/vard edge o f the fro n t doo r p illa rs . D epth w ill be m easured from th e h ighest po in t o f the s tandard p roduction door s ill. R equired sa fe ty equ ipm ent, driver com fo rt, com ­

31

m u n ica tio ns equ ipm en t and ba llas t are tf ie on ly com ponents a llow ed in tf ie d rive r/passenger com partm en t.

c. M ectian ica l C om ponentsi Engine E iig ib iiity

E lig ib le eng ines are genera lly those w ith w h ich the ch ass is is equipped by the m anu fac tu re r fo r the m odel concerned. ifi^SA may approve the use of a lte rna tive p roduction-type eng ines pro­duced by th e ch ass is m a nu fac ture r on a s p e c ific basis. D isp lacem ent may be changed th rough boring, s trok ing or s leeving. Engine m ay be re loca ted w ith in the o rig ina l co m pa rt­m ent bu t the cente rline o f the c ra nksh a ft re la tive to the chass is m ust be m a in ta ined as standard. F ron t engine cars may re loca te the rear o f the engine b lock to the ve rtica l plane c re a te d by th e fo re m o s t e d g e o f th e w in d s h ie ld . C y linde r heads: Free excep t tha t m ethod of co o lin g m ust re­m ain as on the orig ina l.Turbochargers may be ins ta lled on eng ines under 6000 cc and eng ines so equ ipped w ill be rated at th e ir a c tua l d isp lacem en t m u ltip lie d by 1.4.

ii ig n itio n is free.ill T ransm iss ion is free, except th a t d riv ing w hee ls m ust rem ain as

on the o rig ina l m odel and gearbox m ust re ta in the o rig ina l basis o rien ta tion to the o the r m echan ica l com ponents.A ny fro n t eng ine ca r m ay use a transaxie .

d. Brakes, suspens ion and s tee ring are free.e. W heels and tires: M axim um perm itted com p le te wheel w id ths:

up to 5000 cc -1 6 ” (1/2” to lerance) over 5000 c c - 18”

W heel d iam e te r is free.f. A erodynam ic devices m ust not exceed beyond the fro n ta l p ro jec­

tion o f th e car, excep t the rear device m ay exceed the he igh t o f fron ta l p ro jec tion a m axim um o f 4” .Rear spo ile r m ay not exceed 20% o f the w hee lbase o f the car, o r a m axim um of 40 cm (15.75” ), m easured rearward from the rear e x ­tre m ity o f the standard coachw ork.Front s p o lie r/a ir dam may not exceed 10% o f the w hee lbase of the car, o r a m ax im um of 20 cm (7.87” ), m easured fo rw ard from the fro n t ex tre m ity o f the s tandard coachw ork , and m ust be loca ted be low the cente rline o f the fro n t w heeihubs.

32

F = 10% W B or Max 20 cm R = 10% W B or M ax 40 cm

A erodynam ic devices m ust be inscribed w ith in

fro n ta i p ro jection .

11.5.7.1 GT PROTOTYPE CARS (GTP)

11.5.7.1.1 DefinitioniM SA has developed ru les fo r cars know n as GT P ro to types (GTP).

GTP cars sha ll be tw o-seaters conce ived p rim a rily fo r co m pe tit io n in c iose d -c ircu it races. They sha ll carry a ll equ ipm en t fo r norm al road use as w e ll as a ll con tem pora ry sa fe ty devices. GTP cars need not m eet any m in im um production requ irem ent nor be o ffe red fo r sa le to the pub lic . C ar id e n tific a tio n w ill be by eng ine m anu fac tu re r firs t, then the m anu fac tu re r o f the chassis , if d iffe ren t.

FIA G roup 0 cars w h ich m eet IMSA GTP sa fe ty requ irem ents and te ch n ica l regu la tions described in paragraphs 2, 3, 4, 5g, 5m and 6 are a lso e lig ib le to com pete as GTP cars.

GTP ca rs m ay a lso derive from approved m akes and m ode ls m od ified beyond the scope of ru les under w h ich they no rm a lly co m ­pete, provided they rem ain w ith in the s p e c ifica tio n s fo r GTP cars.

IMSA w ill a c t as the fina l au th o rity on e lig ib il ity o f cars and in te r­p re ta tions of these GTP rules.

11.5.7.1.2 Engine EligibilityIMSA w ill regu la te the e lig ib ility o f eng ines fo r use in GTP cars.

E lig ib le eng ines m ay derive from these o rig ins :Type 1 Volum e-produced 2-valve conven tiona l eng ines and rotary

engines.Type 2 Racing eng ines and vo lum e-produced 4-valve conven tiona l

engines.Type 3 S upercharged Type 1 engines. (R estric ted to s ing le tu rbo and

s ing le ign ition .)Type 4 Supercharged Type 2 engines.

33

11.5.7.1.3 Minimum W eights/M aximum Displacements

Cars sha ll m eet th is scale:M axim um D isp lacem ent in L ite rs @

Engine Type 700 KG 750 KG 850 KG 900 KG1. Volum e-produced

2-vaive conven tiona land ro tary engines. 3.0 4.0 5.0 6.0

2. Racing eng ines and vo lum e-produced4-vaive engines. 2.0 3.0 3.5 4.0

3. Superchargedengines from (1). 2.0 2.86 (4.0) 3.57 (5.0)

4. Superchargedeng ines from (2). 1.8(2.52) 2.14(3.0)

W e igh ts are taken w ith the car race-ready w ith o u t fue l o r driver aboard.

11.5.7.1.4 Engine ModificationsD isp lacem ents desired may be achieved by boring , s trok ing , sleev­

ing or des trok lng . P roduction-type engines described in paragraphs 1 and 3 m ay a d d itio n a lly be prepared and too led per Art. 11.5.6(a). P roduction-type eng ines may be fitte d w ith IM SA approved, heavy- du ty cy lin d e r heads o f s tandard des ign and having the sam e num ber and loca tio n o f ports, valves and spark p lugs. C ranksha fts , rods, p is ton rings, bearings, gaskets, valves, cam sha fts , and o the r interna l parts and accessories are free. Valve tra in g ird le m ay be added. O rig ina l cy lin d e r b lo ck m ust rem ain ide n tifia b le .

11.5.7.1.5 Chassis - Body (Refer to Diagram)a. W heelbase: Free. See fo llo w in g ru les on overhangs and body

lengths.b. Overall Length: M axim um : 480 cm (189 In.).c. Overa ll W id th : M axim um : 200 cm (79 in.).d. O verhangs (inc lus ive of any bumpers):

- F ron t p lus rear overhangs m ust not exceed 80% o f w heelbase.• D iffe rence between fro n t and rear overhangs m ust not exceed

15% o f w hee lbase.e. G round C learance: M in im um : 2.5 inches.

N o part o f the ca r m ay touch the ground when any tw o tire s on the sam e s ide are defla ted . It Is not pe rm itted to im prove the a erodynam ic e ffic ie n c y o f the ca r by In s ta llin g any device bet­w een the body and the ground.

f. H e igh t: M in im um : 100 cm (39.5 in.); M axim um : 110 cm (43.3 in.) above ground level. M easurem ent taken w ith fu ll tanks and driver aboard.

g. ins id e Room: M in im um e lbow w id th a t the fro n t seats: 130 cm (51

34

in.) m easured between the in te rio r p lanes o f the doors. Driver and passenger seats m ust be ab le to be occup ied s im u ltaneous ly , and sha ll be loca ted sym m e trica lly on e ithe r s ide of the cente rline of the car. No co m po n e n t m ay in trude In to these spaces. Driver’s fe e t m ust be loca ted a ft o f th e ve rtica l p lane fo rm ed by the fro n t axles.

h. Tw o doors m ust be provided g iving ready access to driver and passenger seats. Both doors m ust sw ing open on hinges m ounted on fro n t doo r posts, and m ust have release m echan ism s operab le from both ins ide and o u ts id e the car. M in im um d im e n ­s ions fo r the low er part o f the doors: 50 cm (20 In.) horizon ta l and 30 cm (12 In.) ve rtica l. Doors m ust not o bs tru c t the la tera l v is ion of the driver.

I. W in dsh ie ld sha ll be cons truc ted of lam inated g lass, provide a ll norm a l fu n c tio n s o f v is ib ility , p ro tec tion and aerodynam ics, and have a m in im um latera l w id th over a 10 cm (4 In.) band a t d rive r’s eye level o f 95 cm (37.5 In.).

j. Rear V is ion : E ffec tive re a rv ie w m irro rs sha ll be fitted , k. A ir in takes m ay p rotrude from the plane o f the bodyw ork provided

they d o not im pa ir the d rive r’s fie ld o f v is ion . A ir In takes m ust be no h igher than the h ighest po in t o f the roof o r w in d sh ie ld , w h ichever is h igher.

I. A erodynam ic dev ices m ust fa ll w ith in the o u ts ide pe rim e te r con ­tou rs o f th e ca r as view ed from above, and extend no h ighe r than the h ighest part o f the coachw ork. W ing end p la te s and supports are cons ide red as part of the ae rodynam ic device. A d ju s tab le fro n t aerodynam ic devices be low the p lane o f the fro n t hubs are perm itted and w ill be governed by the ru les fo r overa ll length , w id th and overhangs. A erodynam ic devices m ay n o t be a d ­ju s ta b le from w ith in the car.

m. W heels/T ires: The num ber o f road w hee ls sha ll be lim ite d to four; a ll r im s sha ll be o f the sam e d iam eter. M axim um com p le te wheel w id th (section w id th): 16 Inches. Spare w hee l, If carried , sha ll be o f a size s im ila r to one o f th e road w hee ls and m ust be carried In its own co m pa rtm e n t ou ts id e th a t o f the driver,

n. E lec trica l E quipm ent: 2 opera ting head ligh ts , 2 ta il/b ra ke lig h ts and w in d sh ie ld w ipe r are required as a m in im um ,

o. Fenders m ust p ro jec t over the w hee ls s o as to p rovide e ffic ie n t covering o f a t leas t h a lf o f th e ir c ircum ference , and a t least the w ho le w id th o f the tire . Rear fenders m ust te rm ina te be low the a x is o f th e rear w heels,

p. OH Tank Is lim ite d to 20 lite rs capacity , q. B a tte ry m ust be loca ted ou ts id e driver com partm en t, r. Tow ing eyes w ith a m in im um inner d iam e te r o f 3” m ust be a tta c h ­

ed fro n t and rear. The tow ing eyes m u s t be pain ted red and be c lea rly v is ib le .

35

GT Prototype Diagram

f-----

L

* of Driver's Pee-t-

___

"Zoo CVM.

Ma*. 46oc**i.® - ̂ © = < 8 0 % (g)

® - © - < i S 7 . ®

c » * '. (^^1. & i» i) A j» '

10 cvvi - ^4 I M ir .- I r i t i d *I W i'4++> : I'JO cw f"I ^ t^SLV,)

Wei' l̂-i+ :M io : IO 0 c * ^ . ( î e .S .« )

, I t o c m . C ^ 5 -5 ia 'l

T ô ro ix rs à C le a rA ^ ^ c e - S . ^ “2 . 4 i

36

11.5.7.1.6 Safety Devicesa. Roll cage is com pu lso ry. M ateria l and co ns tru c tion s p e c ifica tio n s

o f recom m ended d es igns are conta ined in A ppend ix J, A rtic le 253(e) and in these ru les. Tw o ro il hoops, one to the fro n t and one to the rear o f the d rive r’s com pa rtm e n t m ust be provided. They sha ll correspond in shape to the inner p ro file o f the upper part o f the co ckp it. The base o f the hoops sha ll be secure ly in teg ra ted to the m a in s truc tu re . The top m ust be linked by tw o long itud ina l m em bers, sym m etrica l to the cen te rline o f the co ckp it and spaced as fa r a part as is p rac ticab le . The rear ro il hoop sha ll con­s is t o f a d iagona l re in fo rcem ent bar and tw o rearward fac ing braces connected to the h ighest p o in t o f the hoop.

b. S a fe ty fuel tanks m eeting FIA Spec. FT-3 or FTA are required and m ust be m ounted ou ts id e the d rive r’s com partm en t and p rotected as fa r as p rac tica b le by the ro il cage. M axim um to ta l capacity : 120 lite rs (31.7 gallons). Dry-break fue l f il le rs and vents are m an­datory and m ust be loca ted away from the engine com partm en t.

c. F ire w a lls co ns tru c te d o f m eta l m ust be ins ta lled to iso la te the d rive r/passenger co m pa rtm e n t from the fue l tanks and from the eng ine com partm en t.

d. Energy abso rp tion devices are recom m ended to be fitte d a long the ex te rio r ve rtica l w a lls o f the fram e box m em bers to p ro tec t the d river and fue l tanks. They sha ll not, however, co n ta in m echan ica l com ponents such as pum ps, filte rs , p ipes, etc.

e. Driver seat sha ll be m ounted secure ly to the fram e or ro ll cage s truc tu re , b u t m ay be ad jus tab le .

f. S ix -po in t driver re s tra in t sys tem m ust be ins ta lled .g. S ca tte rsh ie ld o r exp los ion -p roo f bell housing are required on cars

where fa ilu re of the c lu tc h /fly w h e e l cou ld create a hazard to the driver.

h. On-board fire e x ting u ishe r o f the ine rt gas type w ith a m in im um ca pa c ity o f 10 lbs. (H alon or Freon) is required. T rigger m ust be m arked w ith red c irc le s w ith the le tte r “ E” and be operab le by e ithe r th e drive r o r from th e ou ts id e o f the car. O u tle ts shou ld be d irected In to the driver, eng ine and fue l com partm en ts.

Examples:

@ M in im um W e igh ts of Engine 700 KG 850 KG 900 KG

(1547 lb) (1879 lb) (1989 lb)

Type 1 C hevro le t C hevro le t C hevro le t173 V-6 5 .0 (305 )V -8 5.7 (350) V -8D atsun Ford Ford

240Z, 280Z, ZX L-6 5.0 (302) V-8 5.7 (351) V -8

37

Examples, cont.:

Engine

Type 2

Type 3*

@ M in im um W e igh ts o f700 KG 850 KG 900 KG(1547 lb) (1879 lb) (1989 ib)

M azda Rotary M ercedes C hrys le r4.5 V-8 5.8 (355) V-8

Porsche Porsche A ston-M artin911 0.6 4.5 V-8 5.4 V-8Toyo ta Ferrari

2600 L-6 5.3 0-12 Jaguar

5.3 V-12

BMW C osw orth C osw orth4-V, L-4 3.3 V-8 3.9 V-8D atsun BMW4-V, L-4 M-1 3.5 L-6

Ford F.1 3.04-V, L-4 norm ally-asp ira ted

Porsche 911 2.8 0-6

D atsun Z, ZX 2.8 L-6

Lancia 4-V, L-4 T oyota 4-V, L-4

Hart 4-V, L-4 H onda 2.0, V-6

Porsche 911 3.2 0-6 C hevro ie t

3.5 (209) V-6 Datsun3.5 V-8

Type 4 Lanc ia Porsche1.4 4V 2 .1 4 V 0-6Ford Toyota

1.4 4V 2.0 4V L-4Porsche Datsun1.4 4V 2.0 4V L-4

R enau lt Honda1.4 4V 2.0 V-6

BMW 2.0 4V L-4

O ther F.2 Engines

* L im ited to a s ing ie tu rbocha rger and s ing ie ign itio n cy iinde r head.

38

11.6 IMSA RS

11.6.1 PurposeTh is ca tegory is in tended to p rom ote in te res t in race c o m p e tit io n fo r

vo ium e-produced fro n t wheei d rive s took oars ava iiab ie to the A m erican pub iic ; to generate p u b iic ity fo r com pe ting drivers, entrants and m anu facture rs; to encourage ind iv idua is to beoom e active com ­pe tito rs and to enabie them to com pete in p ro fess iona i races w ith re ia tive iy m odest investm en ts and m a in tenance costs.

Em phasis is being p iaced on 1982 (and iater) m ode l fro n t wheei d rive cars, referred to as P roForm ance Sedans, w h ich are the oniy m ode is e lig ib ie to com pete fo r M anu fac tu re r C ham p ionsh ip poin ts. Rear w heei d rive cars m ay com pete in the ilVISA RS Series under the ru ies s tip u ia te d in IM SA Techn ica l B u lle tin 1982 # 1 (entitied : IMSA RS Category; M ode ls Produced P rior to 1982) and am endm ents thereto. Cars com pe ting under e ithe r set o f ru les rem ain e iig ib ie for Drivers C ham p ionsh ip p o in ts and overaii prize money.

11.6.2 EligibilityIM SA w ill recognize m akes and m ode is o f ca rs e iig ib ie to com pete.

To q ua lify as a ProForm ance Sedan, a modei m ust be;- F ron t w heei drive.- Produced and m arketed in s u ffic ie n t vo ium e so th a t its s p e c ifica ­

tio n s are s tandard and m ay be e as iiy checked, and so th a t cars and spare parts may be obta ined easily.

- M arketed to the pub lic in the USA as a 1982 or ia ter modei. F ront w heei drive m ode ls p roduced p rio r to 1982 m ay be updated and q u a iify as 1982 m ode is by p reparing them in s tr ic t accordance w ith these ruies.

■ A b ie to seat 4 average-sized adu its as so id to the pub iic .- Produced w ith an in tég ra i hardtop.- M ax im um eng ine size o f 2.5 iiters .

11.6.3 ConfigurationIM SA RS cars m ust con fo rm to s tandard p roduction co n fig u ra tion

o f the basic m odel. Except w here these ru les a llo w m o d ific a tio n s or su b s titu tio n s , a il co m ponen ts o f the cars m u s t be Iden tica l to those produced by the m anu fac tu re r and de livered to the pub lic in the USA on the bas ic m odei recognized. S tandard appearance m ust be s tr ic tiy m a in ta ined . Each m odei w ili have a recogn ized o ffic ia i w e igh t w h ich m ust be m et o r exceeded as raced bu t w ith o u t fue i or driver.11.6.4 Official Weights

M in im um W e igh t ScaieD isp iacem en t W e igh t

Up to 1400 0 0 1650 ibsUp to 1500 CO 1700 IbsUp to 1600 cc 1750 Ibs

39

M in im um W e igh t Scaie, cent.D isp lacem ent W e igh t

Up to 1700 cc 1800 lbsUp to 1800 cc 1850 lbsUp to 1900 cc 1900 lbsUp to 2000 cc 1950 lbsUp to 2100 cc 2000 lbsUp to 2200 cc 2100 lbsUp to 2300 cc 2200 lbsUp to 2500 cc 2300 lbs

11.6.5 Safety Requirementsa. Doors m ust be pinned o r bolted shut, but may not be w elded. Pins

o r b o lts m ust be e as ily rem ovable and doors m ust opera te on o rig ina l h inges w hen p in b o lts are removed.

b. Fuel ce il m ust be loca ted as c lose ly as p oss ib le to the o rig ina l tank loca tion . M eta l bu lkheads m ust be ins ta lled , i f none ex is t, to separa te the d rive r's com partm en t from the fue l ce il and eng ine com partm en ts . The b o ttom o f the fue l ce il m ay not be loca ted be low the cen te rline of the rear axle. M axim um fue l ca pa c ity is 22 ga llons.

c. F ire e x ting u ishe r o f at leas t 2V4 lb. ca pa c ity m ust be carried in the car. On-board fire e x ting u ishe r sys tem (Freon type o f a t leas t 5 ib. capacity) is h igh ly recom m ended.

11.6.6 Optional Modificationsa. Bodywork:

1. A ccessories , ligh ts , gauges and sw itche s m ay be added or rem oved and o the r in te rio r m o d ific a tio n s m ade fo r the conven ience and c o m fo rt o f d rive r provided there is no e ffe c t on the ca r’s m echan ica l perfo rm ance. D river's seat m ay be replaced.

2. G abies and lines m ay be re-routed and protected.3. S tandard inner fender m ate ria l m ay be reshaped.4. H ead liner m ust be removed. Bum pers and b racke ts m ust re­

m ain as o rig ina l. F ron t door g lass and regu la to rs m ay be removed. A il o ther g lass m ust rem ain and fu n c tio n as o rig in a l­ly ins ta lled . In te rio r panels and tr im pane ls m ust be fitte d but m ay be m od ified to c lea r ro ll cage. Panels m ay be m ounted w ith screw s or o the r fasteners b u t may not cover open ings where w indow s o rig in a lly operated. Panels m ay be m ade o f su b s titu te m ateria l (m etal o r fiberg lass) resem b ling o rig ina l pane ls and painted to m a tch interior.

5. Parking lig h t lenses m ay be removed and the o rig ina l open­ings used fo r d u c tin g to brakes.

6. The s tandard sheet m eta l panel betw een the g rille and

40

rad ia to r m ay be m od ifie d to accom m odate a larger radia tor, o il co o le r and ducting .

7. S tandard fro n t a ir dam s and rear spo ile rs w tiic t i are ins ta lled by tt ie m a nu fac ture r on s p e c ific m akes and m ode ls w ill be perm itted w it f i no a dd itio ns or m o d ifica tio ns . In cases w tiere ttiese devices are not ava ilab le fo r a m ake and m odel ttirough its m anufacturer, an a fte rm arke t part approved by IMSA may be perm itted ,

b. Chiassis ■ T ires - B rakes - W tiee is:1. Suspension sp rings are free, p rovided they are o f the same

type as o rig in a iiy fitte d and are ins ta lle d in the s tandard pos i­tion. M cPherson s tru t-equ ipped cars may have the upper s tru t m oun t replaced w ith a s lo tte d p la te fo r cam ber a d jus tm en t, it is perm itted to thread the s tru t or shock absorbers to make the sp ring perch ad jus tab le . S h im s may be used to ad ju s t the sp ring he igh t. C onven tiona l rear sp ring shack les may be m ade ad justab le . S hock absorbers m ay be a ltered or replaced w ith o the rs ins ta lle d in o rig ina l suppo rts and brackets. A n ti­sw ay bars, to rque rods and s im ila r devices may be added or substitu ted . H eim jo in ts are pe rm itted on anti-sw ay bars and fa c to ry a d ju s ta b le fro n t suspens ion parts. A 6 ” m in im um ride he igh t m easured a t any p o in t on the low er ou te r edge o f the rocker panel m ust be m a in ta ined a t a il tim es. A x le loca ting devices m ay not pass th rough the body panels.

2. One or tw o piece w hee ls w ith a m ax im um w id th o f 6 ” m ust be used on m ode ls w ith o ffic ia l w e ig h ts less than 1800 lbs. and 7 ’ on m ode ls w ith o ffic ia l w e ig h ts o f m ore than 1800 ibs. A il fo u r road w hee ls m ust be ide n tica l. W hee ls m ay be s trengthened. A to le rance o f 2” from the spec ified s tandard tra ck d im ens ion is perm itted fro n t and rear. Spare wheel may be removed. T rack is m easured as raced at the ce n te rlin e of the w heels. To provide fo r tire c learance. It is pe rm itted to reshape the o rig ina l inner fender m eta l; however, no external m o d ifica tio n s to the fenders are perm itted .

3. A il cars m ust be equ ipped w ith rad ia l p ly tire s o f a type spec ified by th e G oodyear T ire and Rubber C om pany, stree t use by the pub lic .

4. AM cars m ust be equ ipped e ithe r w ith s tandard brakes as delivered fo r the m ake and m odel, or b rakes o f any o rig in w h ich do not exceed the fo llo w in g crite ria ;- Front: C a lipe rs m ust be production-type . R otors are lim ited

to 10” m ax im um d iam eter.- Rear; D rum s lim ite d to 9 ” x 1

The fo llo w in g a d d itio na l b rake m o d ific a tio n s are perm itted ;

41

-A n y dua l m as te r cy lin d e r and pressure-equaliz ing devices m ay be used.

- L in ing m ateria l is free.- B acking p la tes and d irt sh ie lds may be ventila ted or removed

and a ir duc ts ins ta lle d provided no m o d ific a tio n s are m ade m the bodyw ork. Brake d u c tin g in le ts w ith areas o f no m ore than 12 sq. in. per s ide are perm itted at th e fro n t o f the car be low the bodyw ork provided the re is no e ffe c t on the aerodynam ics o f the car.

-A ir d uc ts w ith in le ts o f 12 sq. in. per s ide m ay a lso be fitte d to th e rear brakes.

- Hand brakes m ay be removed.c. E lec trica l System

1. B atte ry m ay be replaced w ith ano ther o f o rig ina l vo ltage and size and ins ta lle d in the s tandard loca tion .

2. A ny m ake o f ig n itio n co il, condenser, spark p lugs, fuses, re lays and regu la to rs o f the o rig ina l type may be used. Any batte ry Ign ition system may be used.

3. A lte rna to r m ust fu n c tio n as o rig in a lly intended, but m ay be replaced w ith ano the r o f d iffe re n t m anufacture .

d. Engine and Drive Train1. Engine and drive tra in m ust be as produced in com b ina tion

w ith the body and chass is o f each recognized m ake and m odel. Except w here these ru les a llo w m o d ific a tio n s or su bs titu tion s , a ll com ponents m ust be m ounted in s tandard loca tions and con fo rm to s tandard d im ensions. It is perm itted to m achine any com ponent o f the engine provided such com ­ponent is a lw ays ide n tifia b le as a s tandard p roduction part, e xcep t where these ru les require th a t s tandard d im ens ions be preserved, such as cy lin d e r bore, stroke, in le t and exhaust ports , ca rbu re to r base open ing , e tc. No m a te ria l o r m echan ica l extension may be added. A lte rna te c ra nksh a ft and connecting rods of the sam e d im ens ions and m a te ria l as the o rig ina l and bearing a m a nu fac ture r’s part num ber w ill be perm itted .

2. C y linde r head may be ported and polished; however. In le t and exhaust po rt sizes a t the m an ifo ld face m ay not exceed the d im ens ions spec ified fo r the m odel eng ine concerned. Engines up to 1.5 lite r m ay use an a lte rna te cy linde r head sup­p lied by the m anu fac tu re r ava ilab le to a ll co m pe tito rs and approved by IMSA.

3. Eng ine m ay be ciearanced (b lueprin ted) and balanced.4. P is tons and p is ton rings are free. A to le rance o f .050” in

cy lin d e r bore m easurem ent is perm itted . No eng ine m ay be tx jred to exceed 2.5 liters.

42

5. Rocker arm s, cam sha ft, lifte rs , fo llow e rs , pushrods, springs, keepers, re ta iners and va lves are free; however, th e ir bas ic type and the loca tio n s o f valves and cam sha ft(s) m ay no t be changed.

6. ind u c tio n S ystem - IM SA may con tro l the ind u c tio n system s of various m akes and m ode ls un less o the rw ise noted.

A il cars are required to use a s tandard H o lley 2 bbl. car­buretor, model 2300, l is t 0-7448 350 CFM ra ting w ith any in­take m an ifo ld . IM SA may a llo w an a lte rna te ind u c tio n system fo r cars under 1400 cc. On the approved H o lley carburetor, m o d ifica tio n s to the venturis, bores, boosters or b u tte rflie s are n o t p e rm itted . J e t s izes, lin ka g es , f lo a ts , f lo a t m echan ism s and flo a t hous ings m ay be a ltered . Choke m echan ism (not a irhorn) m ay be removed, if an a ir f i l te r is used, it m ust be o f a conven tiona l type using a s tandard ele­m ent th rough w h ich a il a ir to the ca rbu re to r m ust pass. A il a ir fue l m ix tu re to the eng ine m ust pass th rough th e carburetor. Notes:

,1. R enau lt A llia n ce m ay use 1 or 2 W eber 45 DCOE car bure tors w ith a m ax im um choke size o f 40 m m m ounted on a free in take m an ifo ld .

7. E xhaust sys tem is free. O u tle ts m ust be loca ted a ft o f the m id-po in t o f the w heelbase. No bodyw ork m o d ifica tio n is per­m itted . Exhaust m egaphones are not perm itted . The exhaust p ipe o u tle t m ust be the sam e size as the exhaust pipe.

8. O il sum p and o il p icku p m ay be m od ifie d to increase o il ca pa c ity and to prevent surge. O il pum p m ay be m od ified or su bs titu te d , b u t a d ry sum p is no t perm itted . “ A ccusum p” m ay be fitted .

9. Vents, b rea thers and o il f i l te rs m ay be added o r su bs titu ted . A ll e m iss ion co n tro l dev ices m ay be removed and the resu lting ho les plugged. A s ing le o il co o le r on the eng ine is perm itted , provided it is m ounted w ith in th e eng ine com part­m ent (tha t is, betw een the inner fenders, f ire w a ll and grille ) and it is not v is ib le from the ex te rio r o f the car.

10. A ny ra d ia to r w h ich w ill f i t the s tandard loca tion and does not a lte r the c a r ’s appearance m ay be ins ta lle d and shrouded. Fan blades may be removed.

11. Fuel pum ps are free In type, s ize and num ber, b u t m ay n o t be loca ted in the d rive r/passenger com partm en t.

12. Gear ra tios are free provided the d iffe re n tia l hous ing fo r the model Is re ta ined and not m od ified . D iffe ren tia ls m ay be m od ified to produce a lim ite d -s lip o r locked ac tion . Heavy d u ty ax les and co ns ta n t ve lo c ity jo in ts o f the sam e type may be su bs titu te d . If the tra n sm iss io n has an o il supp ly separate

43

from the engine, a d iffe re n tia l o il coo le r may be ins ta lle d pro­vided it is m ounted w ith in the co n fines o f the bodyw ork but o u ts ide the d rive r/passenger com partm en t.

13. H eater m ay be removed.14. C lu tch and flyw hee l are free,

e. N on-Standard C om ponents:The fo llo w in g com ponents may be added or replaced w ith o thers of any orig in : N uts, bo lts , screw s, w ashers and o the r such fasteners, inc lud ing sa fe ty w iring, any bearing o f s tandard d im en ­s ion and type, bush ings, pulleys, d rive belts, e le c trica l w iring, gaskets, seals, fue l and brakes lines.

11.6.7 RS SEDAN ELIGIBILITY LISTMake M odel Make M odelAUDI 4000 Sentra

BUICK Skylark StanzaSkyhawk 310

CADILLAC C im m aron OLD SM O BiLE FirenzaCHEVROLET C avalier Om ega

C ita tio n PLYMOUTH Cham pCHYSLER Laser Horizon

LeBaron R eliantDODGE Aries Turism o

C o lt TC3Daytona C oltOmni PONTIAC 2000024 8000400 PhoenixC harger RENAULT A lliance

FIAT Strada R5FORD Escort Encore

HONDA A ccord FuegoC ivic 181Prelude SAAB 900

MAZDA GLC SUBARU DL, GL626, 83 TOYOTA Tercel

MERCURY Lynx VOLKSW AGEN Je ttaMITSUBISHI Cord ia R abb it

Tredia S c iroccoNISSAN Pulsar Quantum

11.7 IMSA “AMERICAN CHALLENGE” Category

11.7.1 PurposeTh is ca tegory is designed to p rom ote in te res t in race co m p e tit io n

fo r A m erican-bu ilt, vo lum e-produced sedans m arketed to the p ub lic th roughou t the U.S.

44

IM SA w ill recognize drive r and m anu fac tu re r cham p io ns in an annuai series o f races fo r these cars.

11.7.2 EligibilityIM SA w ill recognize s p e c ific m akes and m ode ls e lig ib le to com pete

and w ill approve the sp e c ific a tio n s fo r each. To q ua iify , a m ake and m odel m ust be:

- m anu factured by a U.S. com pany and m arketed as a 1977 or la ter m odel;

-e qu ip pe d w ith an engine sm a lie r than 6000cc (366 cu. in.) d isp iacem ent;

■ a 2-door o r 4-door sedan designed to seat a t ieas t fo u r adu lts .

11.7.3 ConfigurationO ffic ia l M VM A S p e c ifica tio ns Form s fo r 1977 and ia te r m ode is w iil

be used as re ference fo r te ch n ica i data.Except w here these ru ies a iio w s p e c ific m o d ific a tio n s or s u b s titu ­

tions, a il coachw ork m ust be ide n tica l to those de livered by a m anu fac ture r to its U.S. cus tom ers . S tandard appearance m ust be m ain ta ined s tric tiy .

11.7.4 Official W eightIM SA w ill sp ec ify fo r each m ake and m ode i an o ffic ia i w e ig h t w h ich

m ust be m et o r exceeded at a ii tim e s th ro u gh o u t an event. A ii cars w iii be w eighed w ith o u t fue i and m u s t w e igh 9.5 ibs. per cu b ic inch, m ust d isp iay eng ine d isp ia cem e n t on each s ide o f the hood in ie tte rs at ieast 3 inches h igh and w e igh accord in g ly a t a ll tim es, i f the m ake of the engine (from the sam e m anufacturer) d iffe rs from the m ake o f the car, engine m ust a lso be d isp layed ad jacen t to eng ine d isp ia cem e n t in ie tte rs o f the sam e size. A bso iu te m in im u m w eigh t fo r any car: 2600 ibs. A u to m o b iies w ith eng ines over 340 c.i. w ii i be accepted a t a m in im um w e ig h t o f 3400 ibs. Any b a iia s t carried m ust be secure ly bolted to the chassis .

11.7.5 Required Modificationsa. The inner door fram e m ust be re ta ined but may be repiaced w ith

s u b s titu te m ateria i. D oors m ust have w ork ing hinges and m ust be secure iy boited o r p inned c iosed.

b. Hoods and deck lids m ust have w ork ing hinges, be secured w ith p ins or straps, and m ust be ab ie to be opened from o u ts ide the car. Latches m ay be rem oved. H a tchb a cks m ust be secure iy p inned c iosed.

c. M axim um fue l ca p a c ity 32 ga iio ns any car. It is recom m ended th a t a d rybreak fue i f i l ie r be fitte d in a sa fe ioca tion . Fuei ce li m ust be ins ta lie d as c io se iy as poss ib ie to the standard ioca tion . A m eta l bu lkhead, flam e and leakproof w ith a m in im um th ickness of 22 gauge (.032-.035) m ust be ins ta iie d to seai com p ie te iy the driver’s com partm en t from the fue i com partm en t. Box sec tions

45

w h ich are In tegral w ith the tru n k flo o r may o n ly be m od ified (not removed) to the exten t required to ins ta ll the fue l ce ll, the b o ttom o f w h ich may not be loca ted m ore than 2 Inches below the low est part o f the rear low er body panel o r rear bum per. The tru n k flo o r m ust rem ain and be In Its o rig ina l position ,

d. F ire e x ting u ish in g system o f the Freon type w ith a ca pa c ity o f a t least 10 lb. and able to ex ting u ish a fire In the driver, eng ine and fue l com partm en ts m ust be Insta lled .

11.7.6 Other Modificationsa. Bodywork

E xcep t as authorized In these rules, a ll e lem en ts o f the body m ust rem ain and fu n c tio n as produced by the m anufacturer.

1. A ccessories, ligh ts , gauges and sw itche s m ay be added or removed. The o rig ina l dash o r a panel o f th e sam e co n fig u ra ­tio n m ust be used. In te rio r m o d ifica tio n s m ay be m ade fo r the c o m fo rt o f the driver, provided there Is no e ffe c t on the ca r’s m echan ica l perfo rm ance or appearance. D river’s seat m ay be rep laced b u t m ust rem ain In the o rig ina l loca tio n un less o the r­w ise approved by IMSA. H ead line r m ust be removed. F irew a ll and tra n sm iss io n tunne l may be m od ified to re loca te engine.

2. C ab les and lines m ay be replaced, re-routed and protected.3. B um pers m ust be Insta lled In s tandard loca tions , but

bracke ts are free.4. G lass - O rig ina l w in d sh ie ld m ust be re ta ined. F ront d oo r g lass

and regu la to rs m ust be removed. No su b s titu te o r replace­m ent g lass w ill be perm itted . A ll o the r glazed su rfaces m ay be rep laced by lexan.

5. Fenders m ay be flared on ly enough to cover th e w hee ls and tire s fo r th e ir fu ll w id th by s tre tch in g the o rig ina l m a te ria l o r by adding a brow o f any m ate ria l. O rig ina l a rch shape and d im ens ions m ust be m a in ta ined . No s lo ts , vents or o the r m o d ifica tio n s w h ich a lte r or confuse the o rig ina l appearance are perm itted . M ate ria l o f fro n t fenders and fro n t panel Is free. F ront pane ls w ith In tegra ted type bum pers m ust re ta in the ir s tandard d im ens ions and shape. F ron t inner pane ls m ay be removed. Rear inner fender pane ls (wheel w e lls ) m ay on ly be m od ified o r replaced to the ex te n t required to ob ta in wheel and tire c learance.S tandard hood may be rep laced w ith one o f s u b s titu te m ateria l but m ust re ta in the sam e shape and con ­fig u ra tio n as the o rig ina l and m ust be re in fo rced as to rem ain rig id . H ead ligh t open ings may be used fo r d u c tin g to o il co o le r or brakes on ly and m ust re ta in th e ir o rig ina l d im e n s io n s and

tr im m ould ings. A ll external body and trim m ou ld ings In s ta ll­ed on the veh ic le as so ld to the p u b lic m ust be retained.

6. A e rodynam ic devices are lim ited as fo llo w s :

46

Front: A standard , unm od ified s p o iie r as deiivered on tt iem odei to tt ie pub iic , an a fte rm arke t sp o ile r approved by IMSA, o r a fia t, s tra igh t, ve rtica l m eta l p la te ins ta lled be low the low er rear edge o f th e bum per w ith a m in im um ground c lea rance o f 4 inches and extending on ly to the cen te rline o f the tire . N o co m b in a tion s o f the above w ill be perm itted . A il spo ile rs m ay be vented fo r b rake coo lin g ducts.

Hear: Approved s p o iie r as deiivered on the modei to the pub lic , o r a fia t, s tra igh t, ve rtica l, rear s p o ile r m ade o f sheet m eta l and m easuring no m ore than 4 ” in he igh t m ay be a ttached to the rearm ost su rface o f the trunk lid. Rear spo ile r may be on ly as w ide as the trunk lid p lus or m inus 2". No co m b in a tion s o f the above w ill be perm itted .

7. A screen m ay on ly be ins ta lled behind the g rille to keep fo re ign o b je c ts from dam ag ing th e radiator. M in im um size o f the screen mesh: 1 /8 ” .

1. S uspension S prings are free provided they are of the sam e type as o rig in a lly f itte d . Loca tion o f the sp rings is free but m ethod of a tta ch m e n t m ust rem ain as fitte d to the p roduction vehic le . No co il over u n its w ill be perm itted . W e igh t ja c k b o lts m ay be ins ta lled . C hrys le r m ode ls equ ipped w ith transverse to rs io n bar suspens ion m ay be converted to a co il sp ring con­fig u ra tio n o f the fo llo w in g type: A sp ring seat m ay be added to s tandard low er con tro l arm m ounted in its o rig ina l pos itio n and the necessary m o d ifica tio n s m ade to the shock absorber tow er to loca te the top o f the spring.

2. S hock absorbers and th e ir m o un tin g s are free provided they do not pass th rough the flo o r o f the d rive r’s com partm en t.

3. S tandard fro n t low er A-arm, rad ius rods and basic low er suspens ion com ponents m ust be re ta ined but m ay be re in­fo rced. Suspension p ick up po in ts m ay be re loca ted and re in­fo rced. Upper A-arm, sp ind les, hubs, wheel bearings and bush ing m ate ria l is free.

4. Rear su spe n s ion co m po n e n ts m ay be re in fo rce d o r su bs titu te d . A x le loca tin g devices, an ti-sw ay bars and m oun­tin g p o in ts are free bu t m ay n o t be m oun ted ins id e the coachw ork.

5. R ide height, taken w ith the ca r race or q u a lify in g ready, m ust be m ain ta ined equ a lly on both s ides, and m ust be a t least 6 ” as m easured a t any p o in t a long th e low er edge of the rocker panel. The rear ride he igh t m ay not be m ore than 1” h igher than the fro n t ride height.

6. W heels - A ll fo u r road w hee ls m ust be iden tica l. S tee l w hee ls

47

m ust be used on a ll cars. M axim um rim w id th 10” . Track to le rance of 5 ” Is perm itted to provide fo r tire c learance fron t and rear.

7. IM SA approved rac ing tire s w ith a m ax im um section w id th of 13.3” (Vz” to lerance) m ust be used. M easurem ent w ill be taken o f a new tire m ounted on standard rim , o ff the ca r a t 30 psi.

8. Type and m oun ting o f s teering is free.9. Any standard or read ily ava ilab le brakes may be used. W heel

fa n s are not perm itted . Dual m aste r cy lin d e rs are required.c. E lec trica l System

1. Battery may be replaced w ith ano the r vo ltage, size and w eigh t s im ila r to the o rig ina l and m ounted o u ts id e the driver and passenger com partm en t.

2. Ign ition is free.3. A lte rna to r m ust fu n c tio n as o rig in a lly intended, but may be

replaced w ith another o f d iffe re n t m anufacture .4. The standard w iring harness m ay be replaced.

d. Engine and Drive Tra inIM SA co n tro ls engine e llg lb llty fo r each approved m ake and

model. A ll eng ine and engine com ponen ts m ust derive from those produced in vo lum e and readily ava ilab le th rough the norm al re ta il sa les o u tle ts o f the parent m anu fac tu re r o f the model, and such com ponents m ust bear th e m a nu fac tu re r’s part num ber. No tu rbocharged eng ines w ill be perm itted .

1. Engine m ay rem ain In Its o rig ina l loca tion , o r be re loca ted so th a t the cente r o f the fu rth e rm o s t fo rw ard spark p lug hole is no fu rth e r back than a line fo rm ed by the tw o fro n t suspension oute r to p ba ll jo in ts . On cars w ith M cPherson s tru ts , the m easurem ents w ill be taken at the sp ind le . A m in im um engine he igh t o f 11” from the cente r o f the fro n t c ra nksh a ft p u lley to the ground m ust be m a in ta ined at a ll tim es.

2. O rig ina l and approved op tiona l com ponents o f the engine and d rive tra in may be m achined. It Is perm itted to u tilize IMSA ap­proved a lte rna te heavy-duty cy linde r heads o f s tandard design. By s tandard des ign is m eant the sam e num ber and loca tion o f valves, ports and spark p lugs as the o rig ina l.

3. C rankshaft, p is tons , rings, w r is t p ins and connecting rods are free.

4. C am sha fts , cam fo llow e rs , pushrods, rocker arm s, valves, valve springs, keepers and re ta iners are free. It Is pe rm itted to use threaded or p inned rocker s tuds, rocker stud g ird les, and to O-rIng the b lo ck fo r sealing the head gasket.

5. C arbura tion - A ll a lr-fue l m ix tu re to the engine m ust pass th rough the carbure tor. Sports sedans w ith V-8 eng ines m ust

48

use a H o lley 4 bbl ca rbure to r m odel 4150, l is t 0-4776, 600 c fm ra ting . S ports sedans w ith V-6 eng ines m ust use a H o lley 4 bbl carburetor, m odel 4150, lis t 0-4779, 750 c fm ra ting . In te r­m ed ia te sedans w ith V-8 eng ines m ust use a H o lley 4 bbl car­buretor, model 4150, l is t 0-4777, 650 c fm ra ting . In te rm ed ia te sedans w ith V-6 eng ines m ust use a H o iiey 4 bbi carbure tor, m odei 4150, i is t 0-4781, 850 c fm ra ting . A ii in iine 6 cy iinde r eng ines w ith a m ax im um d isp ia cem e n t o f 4 iite rs are p e rm it­ted free carbure tion.

No m o d ifica tio n s are perm itted to the venturis, bores, boosters or b u tte rflies . A lte ra tio n s are perm itted In Jet sizes, linkages, flo a ts , f lo a t m echan ism s and flo a t housings and to a lte r o r rem ove em iss ion con tro l devices and choke m echan ism s (not a ir horn). A spacer not to exceed 1” in th ickne ss m ay be used to adapt ca rbu re to r to m an ifo id . O niy s tandard th ickne ss gaske ts m ay be used. H eat sh ie ld s are not perm itted.

6 . For a ll 8 -cy llnder and 6 -cy llnder engines, an IfyiSA-approved In­take m a n ifo ld m ust be fitted . G enerally, IM SA w ill approve any p roduction type In take m a n ifo ld w h ich Is com m erc ia lly ava ilab le to any co m p e tito r and lis ted In its m anu fac ture rs ca ta iog . No box type o rtu n ne i-ram m a n ifo id w iii be approved.

7. For a ii 8 -cy iinder and 6 -cy iinder engines, a round a ir c ieaner w ith a m in im um d iam e te r o f 12” and a m ax im lm o f 1 6 ’/2” m ust be fitte d d ire c tiy on the approved carbure tor. A standard paper type a ir f i l te r e lem ent w ith a m in im um th ickne ss o f 1” and a m in im um he igh t o f 2” m ust be used. A ll a ir to the car­bure tor m ust be filte red th rough th is e lem ent. Top o f the a ir c leaner m ust be so lid , no heat sh ie lds , duots, hood vents or open ings fo r ca rbu re to r a ir are perm itted .

8 . Exhaust System - Free, excep t the exhaust p ipe m ust rem ain beneath the coachw ork and extend rearward of the drive r and e x it to the s ide o f the car, o r e x it on the passenger s ide no fu r­the r fo rw ard than the m idp o in t o f the door.

9. O ii sum p and o ii p ickup may be m od ified to increase oil c a pa c ity and to prevent surge, and dry sum p sys tem m ay be Insta lled . O il tanks m ay be m ounted secure ly to the ro ll cage In the rear o f the passenger com partm en t.

10. Vents, b reathers, o il f ilte rs and o il coo le rs fo r the engine, tra n sm iss io n and d iffe re n tia l may be added or substitu ted , p rovided they are m ounted w ith in the co n fines o f the body but o u ts ide the d rive r’s com partm en t. A ir m ay be fed to these oil coo le rs th rough d u c tin g w h ich Is not v is ib le ex te rna lly . C atch tanks are required to con ta in any fiu id s w h ich m ay leak out on to the race track.

49

11. A ra d ia to r o f any size w h ic fi w il i f i t in thie s tandard ioca tion may be ins ta lied and re-stirouded if it does not a lte r tf ie ca r’s appearance. M ethod o f m oun ting is free. Fan biades m ay be removed.

12. Fuei pum ps are free in type, size and num ber. The use o f a fue i pressure regu ia to r is perm itted . Fuel pum ps m ust be loca ted o u ts ide the drive r’s com partm en t.

13. C lu tch and flyw hee l is free.14. Any gearbox o f up to 4 fo rw ard speeds and ava ilab le th rough

the norm al re ta il sa les o u tle ts o f the parent m anu fac tu re r may be used.

15. Drive sh a ft and universa l jo in ts are free.16. Rear axle and housing are free, but spec ifie d track to le rance

m ust be m a in ta ined. If a qu ick-change rear end is used, the rear f lo o r may on ly be m od ified to the exten t required to a llow in s ta lla tio n su b je c t to IMSA approval.

17. The fo llo w in g com ponents may be added o r replaced w ith o the rs o f any orig in :

Nuts, bo lts , screws, w ashers and o the r such fasteners, in ­c lud in g sa fe ty w iring , e le c trica l w iring , gaskets and seals, bearings and bush ings, drive be lts , and pulleys,

e. Id e n tifica tio n1. Every c a r m u s t ca rry s ta n d a rd id e n tif ic a tio n p la tes,

m eda llions and o the r o rnam ents.2. Every car m ust carry on both r igh t and le ft rear quarter panels

the m ake and m odel in le tte rs o f a t leas t 4 ” h igh, leg ib le and in co n tra s ting co lors.

3. D river’s name(s) m ay be le tte red above o r be low the d rive r’s w indow . M axim um height: 3 ” .

4. Car num bers sha ll be ca rried on the doors in b lock num bers at least 18” h igh and on the hood. N um bers m ust c o n tra s t w ith body co lo r, and be of leg ib le p roportions. No m e ta llic , m irror- f in is h or “ engine tu rned ” num bers w ill be a llowed.

5. A ll m anu fac tu re rs ’ decals, em blem s, e tc. m ust be a ffixed to the s ides of the fro n t fenders and not on the doors or rear quarte r panels. A dvertis ing on cars is su b je c t to IMSA ap­proval.

11.7.7 Approved Makes and Models(2-door, 4-door and hatchbacks, unless otherwise noted)

MAKE MODEL

AM C •S p ir it•A M X ’79

BUICK SkylarkRegal Coupe

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MAKE

BUICK, cont.

CHEVROLET

DODGE

FORD

LINCO LN MERCURY

OLDSM OBILE

PLYMOUTH

PONTIAC

MODEL

C entury Coupe ‘ S kyhawk

Nova*C am aro 7 6 + C ita tio n M allbu 7 8 +

'M o n zaM onte C arlo 7 8 + Aspen M irada G ranada Fa irm on t

'M u s ta n g 7 9 + T fiunderb lrd ’83 LTD ’83 Futura M onarcti Zep ltyr Cougar

'C a p r i O m egaC utlass Coupe

'S ta rfire Volare Fury V entura Phoenix Grand Am ’78 + Grand Prix '78 +Le M ans ’78 +

'S u n b ird 'F ire b ird ’76 +

'S p o rts sedans

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12. STANDING SUPPLEMENTARY REGULATIONS

IMSA has e s tab lished these un ifo rm S tand ing S uppiem entary R egu la tions under w h ich events in its various series are held and its series cham p ionsh ips are determ ined.

iM SA is the so ie au th o rity fo r the aw ard ing o f a ll IM SA series cham ­p ionsh ip po in ts , the nam ing of IM SA series drive r and m anu fac ture r cham p ions and the d is tr ib u tio n o f any IMSA series p o in t funds in the m anner se t fo rth in these S tand ing S uppiem enta ry Reguiations.

N o tw ith s ta n d in g th a t a pa rticu ia r iM SA series co m p e tit io n m ay be iis ted on the F iA ca iendar o r be part o f an event co un tin g tow ards an F iA cham p ionsh ip , iM SA reserves so ie a u th o rity to se ttie f in a iiy any d ispu te w h ich m igh t a rise during an iM SA series co m pe tition , inso fa r as the d ispu te w ou id a ffe c t any of the above-m entioned de te rm ina ­tions, by nam ing a fin a i court o f appeai in accordance w ith A rtic le 10 o f the IM SA CODE.

12.1 CAMEL GT SERIESThe Cam el GT Series is an annuai ca iendar o f races w h ich deter­

m ines driver and m anu fac ture r cham p ions, the d is tr ib u tio n of po in t funds and o the r awards.

12.1.1 DurationCam ei GT S eries races m ay be schedu ied fo r various dura tions

ranging from 100 m iies to 24 hours. Races may be d iv ided in to heats.

12.1.2 Car EllglbllltyIMSA GT C ategory ca rs as defined in A rtic ie 11.5.2 of the IMSA

CODE and am endm ents there to are e lig ib le to com pete.

12.1.3 Camel GT Driver ChampionshipsDriver cham p ions w lii be recognized in th ree Cam el GT d iv is ions :

P rototypes, GTO and GTU.a. P o in t A w a rd s -T h e s e cham p ionsh ips w iil be dete rm ined by the

re la tive po in t s tand ings o f d rivers at the c lose o f each C am el GT season, co un tin g a il races held. C ham p ionsh ip p o in ts w ill be awarded to the top ten fin ish e rs in each d iv is ion as fo llow s:

1st - 20 poin ts 6 th - 6 po in ts2 n d -1 5 po in ts 7 th -4 poin ts3 rd -1 2 poin ts 8 th -3 poin ts4 th -1 0 poin ts 9 th - 2 poin ts5 th - 8 po in ts 10 th -1 po in t

b. E iig ib iiity fo r Point A w a rd s -T h e supp iem enta ry regu ia tions fo r events w ill spec ify the num ber of d rivers required fo r each entered car.

in races w here one driver is required, p o in ts w ill be awarded on ly to the s ta rting driver w ho m ust d rive the ca r fo r a t least one-

52

ha lf the schedu led d is tan ce (or tim e) o f the race. H is ca r m ust a lso com p le te 90% o r m ore of the d is tance achieved by the w in ­ning car in h is d iv is ion .

In races w here m ore than one driver Is required, po in ts w ill be awarded to each drive r w ho drives th e m in im um d is tance (or tim e) spec ified In the supp lem enta ry regu la tions. T he ir ca r m ust a lso com ple te 70% o r m ore o f the d is tance achieved by the w inn ing car In th e ir d iv is ion .

In bo th of the above cases, drivers w ill be awarded p o in ts on ly in the firs t ca r they drive.P o in ts w ill be awarded only to d rivers ho ld ing cu rren t IM SA com ­

pe tition licenses.c. D is tance is no rm a lly m easured in w ho le laps com ple ted by the

car w ith c re d it fo r a lap go ing to the drive r w ho crosses the scor­ing line In the car. In cases w here the m in im um d is tan ce required to be e lig ib le fo r po in t aw ards is a ce rta in num ber of laps p lus a frac tion , the fra c tio n w ill be d isregarded.

d. In case o f a tie in the fin a l p o in t stand ings, the tie sha ll be resolved accord ing to the drive r’s record of firs t p lace fin ishes; then, if necessary, the num ber o f second p lace fin ishes , and so on dow n to ten th p lace fin ishes . If a tie s t i l l rem ains, the tie shall stand and awards w ill be shared equally.

e. IM SA w ill dec ide fin a lly any d isp u te o r question abou t po in t awards.

f. Cam el GT Series P o in t FundR.J. Reynolds T obacco C om pany has posted a P o in t Fund o f

$250,000 w h ich w ill be pa id ou t to the top ten drivers In the Pro­to typ e d iv is ion and to the to p five drivers In the GTO and GTU d iv i­s ions a t the c lose o f the 1984 Cam el GT Series, as fo llo w s :

Prototype Division - $190,0001. $60,000 6. $12,0002. 35,000 7. 10,0003. 22,000 8. 8,0004. 18,000 9. 6,0005. 15,000 10. 4,000

GTO and GTU Divisions - $30,000 each1. $15,000 3. $4,0002. 7,000 4. 2,500

5 $1,500

12.1.4 Manufacturer ChampionsIMSA w ill p resent tro p h ie s recogn iz ing Cam el GT M anu facture r

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C ham pions in three d iv is ions:P rototypesGT Over 2.8 lite rs (GTO)GT Under 2.8 iite rs (GTU)

M anufac ture r p o in ts w iii be awarded on a 20-15-12-10-8-6-4-3-2-1 bas is in each d iv is ion . A given m ake w iii receive p o in ts fo r its h ighest fin ish in g p os ition on iy in each S eries race, in case o f a tie in the fina i po in t stand ings, it w iii be resolved in the m anner o u tlined in A rtic ie 12.1.3(d).

GTO and GTU p o in ts w iii be awarded in the nam e o f the m anu fac­tu rer o f the au tom ob iie . in the case o f GT P ro to types in w h ich the ruanu factu re r o f the engine may be d iffe re n t from th a t o f the chass is / body, po in ts w iii be awarded in the nam e of the engine m anufacturer, and separa te iy in the nam e o f the chass is I body m anufacturer.

12.1.5 AdvertisingA ii co m pe tito rs are required to a ffix the o ffic ia i Gamei GT Series

decai, unaitered, in an approved ioca tio n on both s ides o f th e ir cars, and, to be e iig ib ie fo r po in t awards, d isp ia y the o ffic ia i Gamei GT Series patch on the breast area o f th e ir d riv ing un ifo rm s. A c iea r space on each car m easuring 20 x 24 inches m ust be reserved fo r the car number, the IM SA GT deca i and Gamei GT Series decai, as described in the d iag ram on page Th is space shou ld norm a lly be on the doors un less the co n fig u ra tion o f the car is such th a t it w ou id be m ore iegi- b ie in another piace.

A ii advertis ing is sub jec t to IM SA approval. S pe c ifica lly , any adver­tis in g of sm oking tobacco o r hard iiquo r sha il not exceed 32 square in ­ches per s ide o f each car, o ff ic ia i Gamei GT Series deca l not inc luded.

Drivers are a lso required to s ign the s tandard re iease on th e ir co m ­p e tition license a pp iica tio n s or, in the case o f drivers w ho are not m em bers of IM SA (for exam ple, an FIA -licensed drive r in an interna- tiona i race), on th e ir entry fo rm s, p e rm ittin g the S eries sponsor, p ro ­m ote r and iM SA to use th e ir nam es and p ic tures, and photos o f th e ir racing cars, fo r advertis ing and p rom o ting the Series.

12.2 CHAM PION SPARK PLUG CHALLENGE SERIESThe C ham pion Spark Piug G haiienge Series is a ca iendar o f races

fo r IM SA Racing S tock (RS) ca tegory cars equ ipped w ith IMSA- approved radia i stree t tires. The Series de te rm ines a Driver C ham pion, M anu fac ture r C ham pion and the d is tr ib u tio n o f the Series P o in t Fund.

12.2.1 DurationC ham pion Spark Plug C ha llenge Series races w iii vary in dura tion .

Races m ay be scheduied in heats.

12.2.2 Car EligibilityiM SA R acing S tock (RS) ca tegory cars are defined in A rtic ie 11.6 o f

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the IMSA CODE and am endm ents thereto.

12.2.3 Driver C ham pion

IMSA w ill recognize a Driver C ham p ion In the Series based on there la tive p o in t s tand ings o f co m p e tito rs a t the c lose of the Series.

a. C ham p ionsh ip P o in ts w ill be awarded In each S eries race to the top ten fin ish e rs as fo llow s:

1 s t-2 0 po in ts 6 th - 6 po in ts2nd -1 5 po in ts 7 th . 4 po in ts3 rd -1 2 po in ts 8 th -3 po in ts4 th -1 0 po in ts 9 th -2 poin ts5 th - 8 po in ts 10 t h - 1 po in t

b. E lig ib ility fo r P o in t A w a rd s -T h e supp lem en ta ry regu la tions fo r events w ill sp ec ify the num ber of d rive rs required fo r each entered car.

In races w here one driver Is required, p o in ts w ill be awarded on ly to the s ta rtin g d rive r w ho m ust d rive the ca r fo r a t least one-ha lf the schedu led d is tan ce (or tim e) o f the race. H is ca r m usta lso com ple te 90% o r m ore o f the d is tance achieved by the w in ­ning ca r In h is d iv is ion .

In races where m ore than one d rive r Is required, p o in ts w ill be awarded to each drive r w ho drives the m in im um d is tan ce (or tim e) spec ified In the supp lem en ta ry regu la tions. T he ir ca r m ust a lso com ple te 70% o r m ore o f the d is tan ce achieved by the w inn ing car In th e ir d iv is ion .

In both of the above cases, drivers w ill be awarded p o in ts on ly In the firs t car they drive.

c. D is tance Is no rm a lly m easured In w ho le laps com p le ted by the car, c re d it fo r a lap go ing to th e d rive r w ho crosses the sco ring line In the car. In cases where the m in im um d is tan ce required to be e lig ib le fo r po in t aw ards or P roForm ance Bonuses Is a ce rta in num ber o f laps p lus a fra c tio n , the fra c tio n w ill be d isregarded.

d. In case o f a tie In the fin a l p o in t stand ings, the tie sha ll be resolved accord ing to the drive r’s record o f f irs t p lace fin ishes; then. If necessary, the num ber o f second p lace fin ishes, and so ori dow n to te n th p lace fin ishes. If a tie s t i l l rem ains, th e tie shall stand and awards w ill be shared equa lly.

e. IMSA w ill dec ide fin a lly any d isp u te o r que s tio n abo u t po in t awards.

f. To be e lig ib le fo r P roForm ance Bonuses, a ProForm ance Sedan m ust com p le te at leas t 70% or m ore o f the d is tan ce achieved by the w in n in g car.

12.2.4 P o in t Fund

The C ham pion Spark P lug C ha llenge Series drive r po in t fund o f S40,000 w il l be d is trib u te d a t the c lose o f the season by the C ham pion

55

Spark Plug Co. to the top fifte e n drivers in th e fin a l p o in t s tand ings, as fo llow s:

1 - $10,000 6 ■ $2,000 11 - $1,4002 - 6,000 7 - 1,800 1 2- 1,3003 - 4,000 8 - 1,700 1 3- 1,2004 - 3,000 9 - 1,600 1 4- 1,1005 - 2,400 1 0 - 1,500 1 5- 1,000

12.2.5 Manufacturer ChampionIM SA w ill recognize a m anu fac ture r cham p ion in the Series, The

cham p ionsh ip w ill be based on the re la tive po in t s ta n d in g s of P roForm ance Sedan m akes a t the c lose o f the Series.

C ham p ionsh ip po in ts w ill be awarded on a 20-15-12-10-8-6-4-3-2-1 basis in each race. A given m ake m ust com p le te at least 70% or more o f the d is tance achieved by the w inn ing ca r to be e lig ib le fo r po in t awards and w ill receive po in ts fo r its h ig h e s t fin is h in g p o s itio n on ly in each S eries race.

In case o f a tie in the fiha l p o in t stand ings, the tie sha ll be resolved as o u tlined in A rtic le 12.2.3(d).

12.2.6 AdvertisingTo be e lig ib le fo r prize m oney and p o in t awards, co m pe tito rs are

required to d isp lay o ffic ia l C ham p ion Spark Plug C ha llenge Series deca ls on th e ir car doors in p rescribed loca tions, o ffic ia l Series w in d ­sh ie ld tin t on the w indsh ie ld , and o ffic ia l S eries pa tch on the ches t o f th e ir d rive r un ifo rm s. No o the r advertis ing m ay be carried on the doors.

If an o ffic ia l tire shou ld be prescribed fo r the Series, the o ffic ia l tire decal sha ll be carried in a s tandard loca tion above the rear wheel open ings and on the fro n t bum per.

A ll adve rtis ing is su b je c t to IM SA approval. A dve rtis ing of any sm ok­ing tobacco and hard liquor, o r o f any brand o f spark p lug o the r than C ham pion, sha ll not exceed 32 square inches per s ide o f each car.

Drivers are a lso required to s ign the s tandard re lease on th e ir co m ­p e tit io n license a pp lica tio n s pe rm itting IM SA and event o r Series sponsors to use th e ir nam es and p ic tu res and pho tos o f th e ir racing cars fo r advertis ing and p rom o tion purposes.

12.3 KELLY AMERICAN CHALLENGE SERIESThe K e lly A m erican C ha llenge Series is a ca lendar of races for

vo lum e-produced A m erican sedans. The Series de te rm ines d rive r and m anu fac tu re r cham p ions, recogn izes top w om en drivers and o the r achievem ents.

12.3.1 DurationK e lly A m erican C ha llenge S eries races may vary in dura tion . Races

m ay be schedu led in heats.

12.3.2 Car EligibilityIM SA A m erican C ha lienge ca tegory cars are defined in A rtic le 11.7

56

of tt ie IM SA CODE and am endm ents thiereto.

12.3.3 Driver Champion

IMSA w ill recognize a drive r cham p ion and the h ighest-p lacedwom an d rive r In the Series based on re la tive p o in t s tand ings o f co m ­petito rs a fte r the fin a i S eries race each year.

a. P o in t A w ards - C ham p ionsh ip p o in ts w ili be awarded in each S eries race to the top ten fin ish e rs as fo ilo w s :

1 s t-2 0 p o in ts 6 th -6 po in ts2 n d -1 5 p o in ts 7 th -4 po in ts3rd -1 2 p o in ts 8th - 3 po in ts4 th -1 0 po in ts 9 th - 2 po in ts5th - 8 p o in ts 10th -1 po in t

b. E iig ib ility fo r P o in t A w a rd s -T h e supp iem enta ry regu la tions fo r events w ill sp ec ify the num ber o f drivers required fo r each enteredcar.

In races w here one drive r is required, po in ts w iil be awarded oniy to the s ta rtin g driver w ho m ust d rive the ca r fo r a t least one- ha lf the schedu led d is tan ce (or tim e) o f the race. H is car m ust a lso com p le te 90% or m ore o f the d is tance achieved by the w in ­ning car In h is d iv is ion .

In races where m ore than one drive r Is required, po in ts w ill be awarded to each driver w ho drives the m in im um d is tan ce (or tim e) spec ified In the supp lem enta ry regu la tions. T he ir car m ust a lso com ple te 70% or m ore o f the d is ta n ce achieved by the w inn ing ca r in th e ir d iv is ion .

In both o f the above cases, drivers w ill be awarded p o in ts on ly In the firs t ca r they drive.

c. D is tance is norm a liy m easured in w ho le laps com ple ted by the ca r w ith c re d it fo r a lap go ing to the d rive r w ho crosses the scor­ing line in the car. In cases w here the m in im um d is tance required to be e lig ib le fo r po in t aw ards is a ce rta in num ber of laps p lus a frac tion , the fra c tio n w ill be disregarded.

d. In case o f a tie In the fin a l p o in t s tand ings, the tie sha ll be resolved accord ing to the d rive r’s record o f f irs t p lace fin ishes; then, if necessary, the num ber o f second p lace fin ishes, and so on dow n to ten th p lace fin ishes. If a tie s t i l l rem ains, the tie shall s tand and aw ards w ill be shared equa lly.

e. IMSA w ill dec ide f in a lly any d isp u te or question abou t po in t awards.

12.3.4 Point Fund

K e lly S erv ices has posted a S eries p o in t fund o f $70,000 w h ic h w iil be paid o u t to the to p fif te e n d rive rs and to p th ree w om en d rive rs in the S eries a t th e c lo se o f th e season as fo llo w s :

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Overall - $62,000:C ha m p ion ■$15,000 6 th - $3,500 11th ■$1,500

2nd ■ 10,000 7 th - 3,500 1 2 th - 1,300

3 rd - 7,500 8 th - 2,600 1 3 th - 1,200

4 th -- 5,500 9 th -- 2,300 14th -- 1,100

5 th -- 4,500 10th - 2,000 15th -- 1,000

Bonuses lor W omen Drivers - $8,000:C ham p ion - $5,000

2 - 2,000 3 - 1,000

12.3.5 Manufacturer ChampionIMSA w ili recognize a m anu fac tu re r cham p ion in the K e iiy A m erican

C ha lienge Series, based on the re ia tive p o in t s ta n d in g s o f m akes at the c lose o f the Series. P o in ts w iii be awarded on a 20-15-12-10-8-6-4- 3-2-1 bas is in each race. A g iven m ake w iil receive po in ts on ly fo r its h ighest f in ish in g p os itio n in each race. T ies w iil be resolved per A rtic le

12.3.3(d).

12.3.6 AdvertisingTo be e lig ib le fo r prize m oney and po in t awards, co m pe tito rs are re­

qu ired to d isp lay o ff ic ia l K e lly A m erican C ha llenge Series deca ls on th e ir car doors in p rescribed loca tions , o ffic ia l Series w in d sh ie ld tin t on the w indsh ie ld , and o ffic ia l Series patch on the ch es t o f th e ir d river un ifo rm s. No o the r advertis ing may be carried on the doors.

A ll advertis ing is sub jec t to IMSA approval. Any sm oking tobacco or hard liq u o r advertis ing is lim ite d to 32 square inches per s ide o f each

car.Drivers are a lso required to s ign the s tandard re lease on th e ir co m ­

pe tit io n license a pp lica tio n s p erm ittin g IM SA and sponsors o f events and series to use th e ir nam es and pho tos fo r adve rtis ing and p rom o­tion purposes.

12.4 RENAULT CUP SERIESThe R enault Cup Series is a oa iendar o f races fo r sp e c ific R enault

m ode ls w h ich have been prepared accord ing to u n ifo rm ru les p rom ­u lga ted by Renault USA and IM SA. The R enault Cup Series dete rm ines a cham p ionsh ip fo r drivers, and w ill be held under spec ia l supp lem en­ta ry regu la tions pub lished separa te ly.

12.4.1 DurationR enault Cup races m ay vary in dura tion . Races m ay be schedu led in

heats.

12.4.2 Driver ChampionIMSA and R enau lt USA w ii l recognize a driver cham p ion based on

re la tive po in t s ta n d in g s o f co m pe tito rs a fte r the fin a l R enault Cup race each year.

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a. C ham p ionsh ip p o in ts w ill be awarded in each R enau lt Cup series race to the top fifte e n fin ish e rs as fo llow s:

1 s t-5 0 po in ts 9 th -1 0 po in ts2nd - 40 po in ts 10th - 8 po in ts3 rd -3 5 po in ts 1 1 th - 6 po in ts4 th - 30 po in ts 12th - 4 po in ts5 th - 25 po in ts 13th - 3 po in ts6 th - 20 po in ts 14th - 2 po in ts7 th -1 5 po in ts 15th - 1 po in t8 th -1 2 po in ts

b. T ies in the fina l s ta n d in g s w ill be resolved as in A rtic le 12.1.3(d).c. IMSA w ill dec ide fin a lly any d isp u te or que s tio n abo u t po in t

awards.

12.4.3 A dvertis ing To be e lig ib le fo r prize m oney and o the r awards, co m pe tito rs are

required to co m p ly w ith the advertis ing ru les spec ifie d by R enau lt USA in the se ries supp lem enta ry regu la tions. Drivers are a lso required to sign the s tandard re lease on th e ir c o m p e tit io n license app lica tio n per­m ittin g 'IM S A and sponso rs o f series and events to use th e ir nam es and photos fo r a dve rtis ing and p rom o tiona l purposes.

59

>5ERi£S PArcH

60

KELLY AMERICAN CHALLENGE

CAR NUMBER. SERIES DECAL. IHSA I.O .. AND DRIVER NAME ONLY. ON OOORS, AS SHOW.

CHAMPION SPARK PLUG CHALLENGE

CAR NtWER. SERIES DECAL. IHSA I.D .. AND DRIVER NAME ONLY. ON DOORS, AS SHOW.

CAMEL GT

W7nrfffJi'JCAR NUMBER. SERIES DECAL. IMSA I.D . AW

' DRIVER NAME ONLY. ON OOORS OR UITMIN AREA 20 In . T 7 T In . , AS SHOW.

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13. APPENDIXEQUIVALENCE FORMULAS

1 inch = 2.54 cm . = 25.4 mm.1 cu b ic inch = 16.387 cu b ic cm.1 m iilim e te r = .03937 inch 1 m eter = 1.0936 yards1 k ilom e te r = 1000 m eters = .62137 m ile = 1093.6 yards 1 m ile = 1,760 yards = 1.60934 k ilom e te rs M iles per hour = k iiom eters-per-hour tim es .62137 K ilom e te rs per hour = m iies-per-hour tim es 1.60934 1 cub ic cen tim e te r = .061 cu b ic inch 1 lite r = 61.03 cu b ic inches = 1000 c u b ic cen tim e te rs (cc.)1 k ilog ram = 2.21 pounds 1 pound = 453.6 gram s1 hundred-w eight (cwt.) = 112 pounds (British), 100 ibs. (U.S.)

N ote: if a B ritish car is sa id to w eigh 25 cw t., its w e igh t w ou ld be 25 tim es 112 o r 2800 ibs.

1 U.S. ga llon = 231.18 cu. in. = 3.785 lite rs 6 U.S. ga llons = 5 im peria l (B ritish) ga llons 1 m ile per hour = 1.467 feet per second

C ylinde r vo lum e (d isp lacem ent) = 3.1416 x bore x bore x stroke4

Engine d isp la cem e n t = C y linde r vo lum e tim es num ber o f cy linde rs W e igh t o f gaso line = 6.2 ibs ./ga iion

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