CVAR accepts Sedans and Production cars up to and including 1972 with preparation in accordance with SCCA’s GCR/PCS versions up to and including 1972.  CVAR requires that any car accepted must be representative of a car type that actually raced in period in the SCCA.  Classes are based on the 1972 SCCA GCR as follows: Sedans A thru C; Production A thru H.  CVAR does not accept replicas, continuation cars, or kit cars of any type, nor does CVAR accept any turbocharged cars.

CVAR also accepts cars for its FIA Class prepared to 1974 FIA or earlier specs, as raced in other than SCCA competitions (e.g., IMSA, RAC, ModSports, etc.). 

CVAR accepts Sport-Racing Classes A thru D for cars raced prior to 1973.  Owners must provide proof of date of manufacture of identical model and appropriate specifications.    

CVAR accepts Formula Classes as follows: FA with 1980 cut-off; FB, FSV, F2, to 1972 and F-1 cars up to 1960; FC with 1972 cut-off; FF1 with 1972 cut-off; FF2 for cars between 1973 and 1980; FV with 1972 cut-off.

To encourage participation in vintage racing by cars that are of 1950's appearance and technology CVAR accepts Corinthian Classics. They differ in spirit as well as equipment from other CVAR classes since 1950’s production cars were not allowed as many modifications as they were in the 1960’s. They should, ideally, be suitable for road or racing and many performance modifications are discouraged or not allowed. Although 1961 is the nominal cutoff, some later cars are clearly 50’s technology while some 1960-era cars are not and will be excluded from this group. Cars built prior to 1962 that are modified beyond these regulations may still be eligible for other CVAR groups. Although racing is not restricted, outright competition is not emphasized in this group as much as in other CVAR groups.

1. All cars will be checked for eligibility and authentic period preparation at the first event they run of the season. 
2. All cars are required to have on file with the Chief of Tech, an up to date Declaration sheet or they will not be gridded.  Falsifying the Declaration sheet (cheating) will result in the suspension of the owner’s VMC license for a minimum of 6 months.
3. Cars that are prepared beyond allowable modifications are required to be corrected and have authenticity points deducted or excluded from competition at the discretion of the Chief Steward, Authenticity Chairman, and the appropriate Group Rep. 
4. The items to be corrected referenced in #3 above, and a time frame for the correction, will be noted on the Declaration sheet.
5. Once the car has been scrutinized, it need not be checked the rest of the season. At subsequent events, it will be given the same number of points assigned. When illegal/non-authentic modifications are corrected, it is the driver’s responsibility to notify Group Rep so that correct points can be assigned.
6. If a change is made that would make the car less authentic, the officials must be notified so the authenticity scores can be adjusted.
7. CVAR routinely pumps motors to verify compliance with the Declaration sheet.
8. The Group Rep will spot-check for continued compliance throughout the season. If a car is found to have changed to an illegal configuration without notifying the officials, it will be disqualified from championship and driver may be suspended from competition, and/or have his VMC license revoked at the discretion of the Chief Steward.
9. If a driver is reprimanded or disciplined for driving infractions, all championship points can be taken away by Chief Steward. Driver can also be disqualified from championship or have other disciplinary action taken. The penalty for overdriving is more than the reward for winning.

General Criteria for All CVAR Production Cars

 

1. All cars must be prepared to the SCCA GCR/PCS limited to the year 1972.  Any appropriate earlier year may be chosen but cars must be prepared to a single year.  No mixing and matching of rules from different years is allowed.
2. Cars must be prepared to specifications listed on their respective page in the PCS.  Cars may not be modified beyond their singe page unless specifically authorized within the GCR or by BoD approved exceptions to the GCR.
3. Post 1972 unibodies up to 1990 may be used in the construction of cars provided they are fully back dated to 1972 or earlier specs.  It is up to the entrant to prove there are no structural enhancements in the later unibody. (BoD decision as of 01-08)
4. Tires must be fully treaded (60% of the tread width must have full depth grooves formed by the manufacturer); the tread pattern must be molded, not hand cut.  Shaving is permitted as long as the minimum required tread depth is maintained across the entire width of the tread face. 

Competition tires are typically molded with a tread depth of 5/32” to 6/32” and should not need shaving.  Street tires are typically molded with tread depths of 8/32” to 10/32”.  Tire manufactures recommend shaving street tires to a depth of 4/32” to 5/32” when used for competition.  In all cases, tires must have 2/32” minimum tread depth at all times during competition.  Treaded tires of minimum 60 series aspect ratio must be used unless an exception is specifically granted by the BoD.  Measured tread width will be used to determine aspect ratio. 

Approved tires:

Avon treaded vintage racing tires

·        Dunlop treaded vintage racing tires

·        Englebert treaded vintage racing tires

·        Goodyear Vintage Sports Car Special (Blue Streaks)

·        Hoosier bias ply Street TD’s and Vintage TD’s

·        Kumho V70

·        Toyo RA1

·        Yokohama A008RSII and A008P

·        Yokohoma A032R

·        DOT street radials with a wear rating of more than zero

 

Tires specifically not allowed:

·        BGF G-Force R1

·        BFG Comp T/A drag radial

·        Goodyear GS-CS

·        Hoosier DOT racing radial RS03 and all current variations

·        Hoosier DOT bias ply dirt stocker

 

Other brands and styles will be reviewed and approved or denied upon application by the Authenticity Committee.  Approval will be so noted on the Declaration sheet by the Tech Inspector.

           

5. All heads must be OEM. No aftermarket head are allowed.
6. No roller cams are allowed unless fitted from the factory.
7. Aftermarket blocks are allowed provided they are of the same material as OEM and critical dimensions are the same.  (BoD decision 01-08)
8. Aftermarket engine internals are allowed.  (BoD decision 01-08)
9. Production cars may upgrade to bigger versions of their original carburetors or replace them with Webers with the same number of barrels, (i.e. Midget with a single Weber in place of two SU’s) as of 12-99 decision of the BoD.  Note this regulation may be tightened down in the future.
10. Intake manifolds must be OEM, period aftermarket, or aftermarket of period design.  For V-8 cars, aftermarket manifolds must be of period design, non-air gap, and dual plane.
11. Aftermarket control arms are not allowed.
12. Specifically excluded are aftermarket dog-ring transmissions that may be shifted without using the clutch.
13. Aftermarket rotors may be used provided they are the same diameter as originally provided and stock caliper reused and mounted in stock location.  (BoD decision 01-08)

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General Criteria for All CVAR Sedan Cars

 

1.      All cars must be prepared to an appropriate SCCA GCR.

2.      No mixing and matching of rules from different years is allowed.

3.      Cars may be updated within “Authorized and Required” modifications as listed in the GCR and BoD approved exceptions.

4.      Post 1972 unibodies up to 1990 may be used in the construction of cars provided they are fully back dated to 1972 or earlier specs.  It is up to the entrant to prove there are no structural enhancements in the later unibody.  (BoD decision 01-08)

5.      Tires must be fully treaded (60% of the tread width must have full depth grooves formed by the manufacturer); the tread pattern must be molded, not hand cut.  Shaving is permitted as long as the minimum required tread depth is maintained across the entire width of the tread face. 

Competition tires are typically molded with a tread depth of 5/32” to 6/32” and should not need shaving.  Street tires are typically molded with tread depths of 8/32” to 10/32”.  Tire manufactures recommend shaving street tires to a depth of 4/32” to 5/32” when used for competition.  In all cases, tires must have 2/32” minimum tread depth at all times during competition. 

6.      Treaded tires of minimum 60 series aspect ratio must be used unless an exception is specifically granted by the BoD.  Measured tread width will be used to determine aspect ratio.  (BoD decision 01-08)

Approved tires:

·        Avon treaded vintage racing tires

·        Dunlop treaded vintage racing tires

·        Englebert treaded vintage racing tires

·        Goodyear Vintage Sports Car Special (Blue Streaks)

·        Hoosier bias ply Street TD’s and Vintage TD’s

·        Kumho V70

·        Toyo RA1

·        Yokohama A008RSII and A008P

·        Yokohoma A032R

·        DOT street radials with a wear rating of more than zero

 

Tires specifically not allowed:

·        BGF G-Force R1

·        BFG Comp T/A drag radial

·        Goodyear GS-CS

·        Hoosier DOT racing radial RS03 and all current variations

·        Hoosier DOT bias ply dirt stocker

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Other brands and styles will be reviewed and approved or denied upon application by the Authenticity Committee.  Approval will be so noted on the Declaration sheet by the Tech Inspector.

 

7.      Treaded tires of minimum 60 series aspect ratio must be used unless an exception is specifically granted by the BoD.  Measured tread width will be used to determine aspect ratio.  (BoD decision 01-08)

8.      All heads must be OEM. No aftermarket head are allowed.

9.      No roller cams are allowed.

10. Aftermarket blocks are allowed provided they are of the same material as OEM and critical dimensions are the same.  (BoD decision 01-08)

11. Aftermarket engine internals are allowed.  (BoD decision 01-08)

12. A Sedan dry sump tanks must be mounted forward of the fire wall.

13. Intake manifolds must be OEM, period aftermarket, or of period design.  For V-8 cars, aftermarket manifolds must be of period design, non-air gap, and dual plane.

14. Specifically excluded are aftermarket dog-ring transmissions that may be shifted without using the clutch.

15. Aftermarket rotors may be used provided they are the same diameter as originally provided and period caliper reused and mounted in period location.  (BoD decision 01-08)

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General Criteria for all CVAR FIA cars – (FIA regulations are currently under review by Group 1 Reps.  Please contact them with any car preparation related questions)

FIA:  Cars thru 1974

Not a production car class.  Cars that do not meet rules for AP, AS, or BP will not be “bumped” to the FIA class.  Cars built to FIA Group 2, 3, or 4 IMSA, or RAC ModSports regulations.  Cars must conform to period practice.  Cars may run any tires that fit the rims.  All cars introduced after the 1998 season must have period history or mechanically and bodywork exactly replicated to a specific car that ran prior to 1975.  Paint and trim need not be replicated.  Aftermarket heads (iron or aluminum) that retain the original port spacing may be used.  Aftermarket blocks are not allowed.  Aftermarket rods and cranks are allowed as is roller rockers.  Dry sumps are allowed in any car.  All front engined V-8’s must have period gear box, no dogtype boxes that may be shifted with out the clutch are allowed.  Maximum displacement (+0.040) for Corvette/Camaro is 454 cu. in., 429 cu. In. for Mustang, 351 cu. In. for Pantera, 3.0 liters for 911, 2.4 liters for 914/6 and 4.2 liters for XKE.  Maximum diameter brake rotors is 12” for all cars.  All brake components must have been available in 1974.  Wheel diameter of 15 or 16” are allowed, but 16” wheels are not eligible for correct wheel points.  Wheel widths are:  10” for Pony cars, 12” for XKE and 911 Carrera, 10/14 for Corvette and Pantera, 7/8” for 914/6.  No carbon fiber components allowed on any car.  XKE must meet RAC ModSports regulations (coupe or hardtop bodies only).  Sample Cars:  IMSA Corvette, ModSports XKE, Porsche RSR, Pony Cars.

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General Criteria for Sports Racing Cars

 

1.      Cars must be an example of cars raced prior to 1973.

2.      Owners must provide proof of date of manufacture of identical model and appropriate specifications.

3.      English Clubman cars must run with fenders.

 

General Criteria for Formula Cars

 

1.      Owners must provide proof of date of manufacture of identical model.

2.      Identical models must have been raced in or before the cut-off year.

Specific Exceptions and Clarifications for Individual Classes

A- Production:  Cars that ran in SCCA A-production prior to 1973.  Examples are Corvette 427/454/350 LT-1, 390 AMX, Shelby GT-500, 427 Cobra. 1.      Maximum over bore of stock bore is limited to 0.060”.  (BoD decision 01-08) 2.      Maximum cubic inch is based and limited to maximum allowed over bore and stock stroke. 3.      Roller rockers of any type are allowed by BoD decision. 4.      Angle plug OEM heads are not allowed on any production cars. 5.      Multi-disc clutches must be removed from all production cars by September 2008. 6.      289 powered (or 302) Cobras with Webers will run in A/P as per 1965 SCCA specs.   B- Production:  Cars that ran in SCCA B-production prior to 1973.  Examples are Corvette 290 AMX, Shelby GT-350, 289 Cobra.  1.      Maximum over bore of stock bore is limited to 0.060”. (BoD decision 01-08) 2.      Maximum cubic inch is based and limited to maximum allowed over bore and stock stroke. 3.      Roller rockers of any type are allowed by BoD decision. 4.      Select Ford powered cars are allowed a 302 in place of a 289.  They are 289 Cobras, Shelby GT-350’s, and 260/289 Tigers by BoD decision. 5.      Windsor heads may be substituted for 289 HiPo heads on Ford cars by BoD decision.  (Future discussion within G1 as to 2005 newsletter statement of “no head later than 1972” as it may or may not apply to heads other than Ford, with recommendation to the BoD pending). 6.      Angle plug OEM heads are not allowed on any production cars 7.      Lincoln brakes must be removed from Shelby GT-350 by the 2009 season.  (BoD decision 01-08) 8.      Multi-disc clutches must be removed from all production cars by September 2008.   C- Production:  Cars that ran in SCCA C-production prior to 1973.  Examples are Datsun 240-Z, Jaguar XKE, Lotus Europa TC, Porsche 911, Lotus Elan. 1.      C-Production cars may use 50-series tires by BoD decision. 2.      All SCCA-homologated Porsche 911 and TVR 2500, and Lotus S-7 twin cam, run in C/P even if classed by the SCCA in B/P. 3.      All Sunbeam Tigers run in B/P regardless of engine size. 4.      XKE’s may run a fiberglass hood with authenticity deduction. 5.      Porsche 911 with 2.4 liter motor must run with factory mechanical butterfly injection.  Other Porsche 911’s may run with Webers, factory injection, or Solex carbs.     D- Production:  Cars that ran in SCCA D-production prior to 1973.  Examples are Alfa Duetto, Lotus Super 7, Triumph TR-4, Courier Mk.4. 1.      Any 1965-1966 Corvair may be configured as a Yenko Stinger but must retain drum brakes.   E- Production:  Cars that ran in SCCA E-production prior to 1973.  Examples are, MG-B, Fiat 124 1604cc. 1.      Due to a shortage of 14”, 60 series tires, EP cars will be allowed to use 55 series tires until further notice by 12-06 BoD decision.   F- Production:  Cars that ran in SCCA F-production prior to 1973.  Examples are, 1275 Sprite/Midget, Lotus 7 America. 2.      1275 cc engine is allowed in all Sprite/Midget, Lotus 7 America bodies, but not 1500. 3.      Bugeye’s with 1275 cc are legal to race but not eligible for authenticity points with regard to the body. 4.      Spridgets that meet ALL the Spec Sprite rules may run fiberglass hoods and trunk lids without penalty. 5.      Spridgets that DO NOT meet all the Spec Sprite rules must run metal hoods and trunks.   H- Production:  Cars that ran in SCCA G and H-production  and D-Sedan prior to 1973.  Examples are, Fiat 850, 948 Sprite, 998 Mini, Fiat-Abarth 1000.   top A-Sedan – Trans-Am:  Cars that ran in SCCA A-Sedan or Trans-Am prior to 1973.  Examples are, Camaro, 1964-70 Mustang, Challenger, and Javelin. 1.      Maximum cubic inch of 310 is based and limited to maximum allowed over bore and stock stroke. (BoD decision 01-08) 2.      Roller rockers of any type are allowed by BoD decision. 3.      All heads must be OEM.  (Future discussion to take place within G1 with regard to 2005 newsletter statement of “no head later than 1972”, as it may or may not apply to heads other than Ford, with recommendation to the BoD pending). 4.      Ford Boss heads may not be use on 1968 or earlier Ford cars. 5.      All brake calipers must be of period design and available in period. 6.      Maximum wheel width is 8”, maximum diameter is 15”. 7.      Fiberglass fenders and doors are specifically not allowed. 8.      Dry sump tanks must be mounted within the engine compartment. B-Sedan :  Cars that ran in SCCA B-Sedan prior to 1973.  Examples include, Datsun 510, Alfa GTV, BMW 2002, Lotus Cortina. 1.      Engine limit of 2000cc (up to and including 1970 GCR) or 2500cc (1971 and 1972 GCR 2.5 Trans-Am spec). 2.      Maximum rim width is 7”. C-Sedan :  Cars that ran in SCCA C-Sedan prior to 1973.  Examples are, 1275 Mini Cooper S, Alfa 1300 GTA 1.      Maximum engine size is 1300 cc. 2.      Maximum rim width is 6”. 3.      Mini’s may run fiberglass nose with an authenticity deduction.  top A-Sports Racing (ASR)  Mid-engine, V-8 powered sports-racers on slicks or treaded tires.  Other sports-racers with slicks or 4-valve engines.  Examples are Chevron B19, Lola T212, McLaren-Chevy; Genie-Buick 1.      Can-Am cars run thru 1974 are allowed. 2.      Turbocharged cars are not allowed. B-Sports Racing (BSR)  Mid-engine, sports-racers and Clubman cars up to 2000 cc on treaded tires.  Examples are Bobsy SR-3 Twin cam, Lotus 23, Mallock U2/1600 Ford 1.      All cars with Coventry-Climax FPF engines regardless of displacement. 2.      No 4-valve engines allowed. 3.      No wings allowed. C-Sports Racing (CSR)  1.      1300 cc engines maximum. 2.      No wings allowed. 3.      Treaded tires only. D-Sports Racing (DSR)  1.      1100 cc engines and under. 2.      No wings allowed. 3.      Treaded tires only.  top FA:  Formula cars which raced in and conform to 1980 or earlier SCCA or FIA class. 1.      Period body work must be used. 2.      Cars may run on slicks. FB:  FB, FSV, F2, to 1972; F-1 cars up to 1960 1.      Treaded tires are required. 2.      Wings are not allowed. 3.      4-valve engines are not allowed. FC:  FC, F3, F2, Mid-engine F-Jr 1100 cc and under, all with 1972 cut-off date. 1.      Wings are not allowed. 2.      4-valve engines are not allowed. 3.      Treaded tires are required. FF1:  FF to 1972.  1972 or earlier FF or Monoposto regulations.  Example:  Merlyn Mk.20, Titan Mk.6 1.      The following spec tires are required:  Monoposto Racing Historic Formula Fords will use only the following tires:  Front:  Dunlop 135/545-13               CR82  9092 Formula Ford Rear:  Dunlop 165/580-13               CR82  9092 Formula Ford 2.      Standard 9092 compound only, 476 is not allowed. 3.      Additional grooving or hand cutting is not allowed. 4.      Rain tires are not allowed. 5.      Steel wheels are required. FF2:  Formula Fords from 1973 to 1980, which meet 1980 or earlier SCCA regulations.  Earlier FF’s may choose to run in this class as well.  Example:  Lola T0340, Merlyn Mk.029 1.      Slicks are allowed. 2.      Mag wheels are allowed. FV:  FV meeting 1972 SCCA GCR or Monoposto regulations.  Entrant to show proof of date of manufacture of similar model.   Example:  Zink FV to 1972. 1.      Slicks or treaded tires allowed.  Slicks will be subject to authenticity deductions. 2.      Working fan belt required for cooling, generator must spin but may be gutted. 3.      Fan shroud must remain. 4.      12 volt batteries are allowed. 5.      Zero-roll (unless original as D-13 and Shadowfax) is not allowed. 6.      Modern body updates not allowed. 7.      Monoshock not allowed. 8.      Chrome 4.5” steel VW-style wheels are allowed.

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Corinthian Classic:  (Group 4)

Production Cars   1)     Must have full interior with 2 seats, carpet (if originally installed) and door panels (not aluminum panels). Headliner may be removed for roll bar clearance. Seats, gauges, etc. may be substituted but not removed. Stock dash required but can be modified for instruments. 2)     Wheels may be 1.5” wider than stock width as listed in the 1972 SCCA PCS or in manufacturer’s data. Cars with 16” standard wheels may substitute 15” wheels. 3)      Wheels must be of period appearance (modern copies OK) or points will be deducted. No Revolutions or 3-piece wheels. 4)      Tires must be treaded and of at least 60-series tall. 5)      No body modifications allowed for tire clearance except rolling inside lip of fender. No light weight body panels unless homologated. Bumpers may be removed and windscreens used in place of windshields. No air dams or other aerodynamic devices allowed. 6)      Gearbox must have original number of speeds and conform to 1972 or earlier SCCA PCS.. 7)      Brakes must of original type and size. Example: No disc brakes on 356 Porsche. 8)      Carburetors must be of original manufacturer and number.  Internal engine/gearbox parts are restricted to 1972 SCCA GCR and PCS regulations. 9)      Roll bars and all safety equipment required. Fuel cells recommended. No points penalty for any safety equipment including roll cages in closed cars. However, cages should not extend through firewalls or bulkheads to tie in to suspension points. No roll cages in open cars. . 10) Cars may be lowered; springs substituted and sway bars added. Shocks may be replaced, but changing system (i.e. lever to tube) will result in loss of authenticity points or relocation to other classes. 11) Cars of approved model but not built in 1961 or earlier are allowed so long as they maintain 1961 appearance and mechanical configuration. 12) No replicas allowed (i.e. kit cars of modern manufacture). 13) No racing history is required for any car.