The body configuration will be as raced in the year of manufacture and
shall be neat and clean. This applies to the outside, engine
compartment and cockpit areas. All body parts must be made of the same
material and design as supplied by the manufacturer as standard during
the car’s eligibility period.
Supplemental aerodynamic devices such as spoilers, air dams and
wings are not permitted. Fender flares and fender widening are
permitted in Groups 5, 6 and 7 only if the actual car raced in that
configuration in the year of production. It is up to the entrant to
substantiate any deviation in the body configuration of the car.
Interiors will be neat. Supplementary and replacement gauges are
permitted. Windshields may be replaced by approved materials such as
plexiglass or lexan.
All exterior trim, including grills and headlight trim rings must
be in place. Bumper and lights may be removed. Light openings must be
covered by a panel and may not be used as ducting.
Commercial advertising is discouraged. Historically significant
markings are encouraged. The total non-historic advertising shall not
exceed 100 square inches on each side of the car.
Wheel diameter and width must meet SCCA Production Car Specifications or
FIA homologation for all production-based cars for the year of
manufacture. Sports racing and modified cars must meet SCCA Modified
category maximum wheel widths for their eligibility period. FIA
specifications will be accepted for cars constructed to FIA
Since many of our members also
attend SVRA events and we generally accept most cars that are eligible
for SVRA Groups 1/3/4/6/8 (& selected Group 2/5/7), SVRA tire rules are
adopted for VDCA competition. The SVRA tire rules for each Group can be
found on the SVRA website at
Most Groups have a specified list of acceptable tires.
allowed are the DOT legal "slick" tires offered by a number of
manufacturers including Hoosier, Kumho, Toyo and Avon. All tires with a
couple of circumferential grooves and little or no other tread fall in
this category. There are plenty of alternatives to choose from if your
car is in a Group that does not have a specified list of tires (Group 8
for example). Any full tread, high performance street tire is
acceptable. If you need a dedicated competition tire, there are several
treaded competition tires also available in most sizes.
If you have looked at the SVRA web site and you still don't know
what tire you can use, send Doug Meis an e-mail at:
The correct engine displacement must be disclosed with certainty and
accuracy. The entrant is responsible for ascertaining the correct
engine size and construction, even when the engine is built by an
outside source. Engines must be of the original type, displacement and
design as originally fitted by the manufacturer and be in the correct
The following engine restrictions
Engines may be overbored to a maximum of .047” or 1.2mm.
Wet sump oiling systems may not be converted to dry sump. Dry
sump oiling systems are not permitted in the production based classes,
unless the actual car was run in that configuration.
The fuel induction system must be as provided by the
manufacturer. Carburetors may not be changed to fuel injection or vice
versa. Production based cars must have carburetion of the original
make, size and number as supplied by the manufacturer. Larger
carburetors are allowed if listed for that make and model in the
appropriate SCCA production car specifications. Cars equipped with
larger carburetors that are not listed in the SCCA production car
specifications will be moved to the next higher class within their race
Blocks and heads must be of the same material as provided by the
manufacturer. Modern aftermarket heads and blocks are specifically
Electronic ignition is allowed but must be triggered from inside
Transmissions must be as provided by the manufacturer at the time of
construction. Reverse must work and be selectable by the driver when
seated. Gear ratios are free.
The system of suspension (spring type and number, shock absorber type
and number) may not be changed and must attach to the stock factory
An anti-roll bar may be added or deleted front and/or rear.
Supplementary springing devices are prohibited.
Rod ends may replace factory bushed joints but the mounting
points and geometry of the suspension may not be altered.
Springs and shocks are free, but lever shocks may not be replaced
with tube shocks.
Cars with leaf springs rear axles may add an axle locating bar
(traction bar) on either side. These bars will be mounted parallel to
the frame and may not extend beyond the rear edge of the driver’s door.
All hubs, spindles, axles, axle housings, drive shafts, lug
bolts, control arms, mounting points and other suspension parts may be
strengthened or replaced for safety as long as the track width, wheel
base and geometry are not altered.
Braking systems must be of the same type as standard for the year of
manufacture or as homologated by the original manufacturer for that
year. Updating or backdating is not allowed.
Aftermarket brake calipers are prohibited
Dual-circuit braking systems are required except for Pre-war
group cars and any vehicle using brakes activated by cables.
Lining material is free.
Brake ducting is permitted as long as the ducts are not visible
from outside of the car and exterior scoops are not added to the body.
Ducting may not extend through the driver’s compartment.
The weight of the vehicle must meet the minimum weight specified in the
1972 SCCA production car specifications. All production based sports
cars and sedans have minimum weight specifications.
All oil, fuel, water and brake lines must be secure and free of
leaks. Catch cans must contain any possible overflow or blow-by from
engine, radiator or transmission and are mandatory. All drain plugs
must be safety wired.
All cars except for formula cars must have at least one brake
light in working order.
All cars must have mirrors fitted which provide the driver
adequate rearward visibility and visibility on both sides of the car.
Hoods, deck lids, doors and other body components must be
Batteries must be securely mounted with a metal hold-down. The
hot terminal must be insulated.
Competition numbers at least eight inches in height
must be clearly displayed on both sides of the car.
Antifreeze is prohibited.
Headlights and other breakable glass must be taped.
There must be an electrical cut-off switch to isolate the battery
and cut off the ignition. The switch must also cut-off electric fuel
pumps. The switch must be accesible from the outside of the car and
the 2014 season, helmets must be rated SA2005 or better. This
is a change from previous years. If your helmet is SA2000, it’s
probably so old that it’s due for replacement anyway. As a reminder, we
do not accept “SM” (motorcycle) rated helmets.
All drivers must wear adequate eye protection. The driver's name
should be clearly visible on the back of the helmet.
All drivers must wear a minimum of a double layer suit and one layer of
underwear that covers the body from the neck to the wrists and ankles.
The suit and underwear must be made of fire resistant material (Nomex,
etc.) and must total at least three layers (i.e. 3-layer suit or a 2
layer suit with underwear). FIA homologated suits are recommended.
Underwear is not required for suits carrying an SFI rating of 3-2A/5 or
higher. All drivers must wear gloves, shoes and socks of fire resistant
material (gloves and shoes may be leather). Drivers with facial hair or
exposed hair must wear fire resistant hoods.
belts and Arm Retraints:
All cars must be equipped with a standard five or six point
harness. All harnesses must have a date of manufacturer not older
than five years from the date of competition. Except for the
Pre-war Group cars, all drivers must wear their harness at all times
while on the track, and it is strongly recommended that the Pre-war
Group drivers wear harnesses. Properly adjusted arm
restraints are required in any car without a roof.
Sedans and coupes may have either a window net or the driver may use an
arm restraint on the arm nearest the window. Arm restraints should
be attached to the forearm and limit the movement of the driver’s hands
to just above the helmet.
Head and neck support: Head and
neck support devices and systems are highly recommended.
Rollover protection is highly recommended in all cars. Except for
Pre-war group cars, all cars will have roll bar or roll structure which
is two inches higher than the driver’s head when seated in the car. The
design and structure of the roll bar or rollover structure is left up to
the car owner, but should follow sound engineering standards. There
must be a padded headrest within 6” of the driver’s helmet. All parts
of the car or roll bar that could come in contact with the drivers head
must be padded.
extinguishers: All cars must be equipped with a dry chemical or
halon fire extinguisher of at least 2 pounds, securely mounted with a
metal quick release device within reach of the driver or an on-board
fire suppression system of at least the same capacity. Fire suppression
systems are highly recommended.
walls: There shall be a firewall separating the driver’s
compartment from the engine and fuel tank. Undertrays should have drain
holes. These items should be constructed so as to prevent fluids and
flames from passing into the cockpit.
Fuel Cells: Except for Pre-war
Group cars and Group 8 Improved Touring Cars, all cars must have a fuel cell that meets FIA FT-3
Towing eyes: All cars should
have a dedicated towing eye or other means to attach a tow strap to the
front and back of the car.
Driver conduct and the 13/13 Rule:
All drivers are subject to the VDCA 13/13 driver conduct rule. The VDCA
13/13 Rule states that if you are involved in an incident that causes
damage to your car or that of another competitor, you can be excluded
from the remainder of that event. Further, you may be excluded from
future VDCA events or placed on probation for a period of up to 13
months. Additional incidents occurring during a period of probation may
result in further exclusions and/or an extended period of probation.
have questions? contact