- 1972 to present four cylinder passenger cars or trucks.
- No four wheel drives.
- No rotary engines.
- No convertibles.
- No mid engine cars.
- No Cosworth engines.
- Minimum weight will be 2000 lbs.
- Cars with a “cc” over 2000 will run one (1) pound per “cc”
- A maximum of 58% left hand weight only
- Weights may be adjusted for competition purposes
- Any 4 cylinder piston engine allowed
- Any modification or parts that will fit inside the engine allowed
- Maximum setback allowed for the engine will be six (6) inches measured from the centerline of the upper ball joint
- Dry sump oiling systems permitted
- Aluminum cylinder heads allowed
- Steel cylinder heads will receive a 100 lb weight break
- Any intake will be allowed
- Grinding polishing, port matching or any other modifications allowed on the intake manifold
- A spacer plate may be used under the carburetor with a maximum thickness of two
- Headers allowed
- Exhaust must exit behind the driver either out the side or turn down under the car FANS and RADIATORS
- Electric fans may be used
- Aftermarket radiator may be used; however the radiator must remain in stock location
- No anti freeze permitted
CLUTCH and TRANSMISSION
- Bell housing most of the 2 inch inspection hole.
- All driveshaft’s must be painted white. And must have two safety straps around the driveshaft, one in the front end one in the rear.
- MSD type ignition boxes may be used
- Any other aftermarket system must be approved by Wake County Speedway Official
- Any single 2-barrel carburetor.
1- Aftermarket bodies permitted 2- Inner door panels may be removed.
- Fabricated dashboards are permitted
- All glass must be removed. LEXAN windshield must be installed and secured with support straps, no pop rivets.
- The battery must be mounted out of the driver’s area in a Steel Container or battery box. The trunk area is the recommended location
- Stock steel bodies receive a 50 pound weight break
- Rear spoiler will be a maximum of seven (7) inches in height
- All steering wheels must be magnetic
- All steering wheels must be equipped with a quick release coupling
FRAMES and SUSPENSION
- Tubular frames may be used
- Sway bars may run Heim joints instead of end links.
- Aftermarket part allowed
- Stock front clip cars receive a 100 pound weight break
- Rear leaf spring cars receive a 50 pound weight break
- Only one shock per wheel
- Coilovers may be used
- Big spring cars will receive a 50 pound weight break
- Minimum ground clearance or ride height will be two (2) inches.
- This includes the frame, spoilers, body sheet metal and side panels
- Aftermarket steel wheels permitted
- A maximum wheel width of 10 inches
- Aftermarket brake systems permitted
- Rotors and drums must be magnetic steel.
- All brakes must be in working order.
REAR ENDS and DIFFERENTIALS
- Quick change rear ends permitted
- Stock type rear ends will receive a 100 pound weight break
- Locked differentials permitted
- Magnetic steel axels only
- Fuel cells are mandatory. Maximum volume of 8 gallons
- Fuel cells must be mounted and the center of the frame rails as far forward as possible. May be open in the bed area
- A fuel cell protector bar height minimum of 1½ inches in diameter and a minimum wall thickness of 0.083 inches magnetic steel tubing must be used.
- The bar must extend below the frames section behind a fuel cell or the fuel tank.
- Fuel injected cars may use the stock gas tank and must run less than half capacity. A fuel line for these cars cannot run through the driver’s compartment. 6- A minimum 8 inch ground clearance for the fuel cell.
- Four (4) point cages with curved door bars required.
- Roll bars must be welded and made of a minimum wall thickness of .090 seamless tubing.
- Roll bars must be at least 1 ½ inch OD.
- Roll bar may be extended through the firewall and loop around radiator.
- Roll bars may be extended to the rear deck also.
- Fuel cell protector must be installed behind fuel cell.
- Right side cage must have 4 bars in the door area.
- Drivers door roll bars should have intrusion plates welded to the outside a minimum of 1/8 inch plates.
- Refer to the Whelen All American Series rulebook for cage construction guidelines.
- Seat belts bust be a 5 point harness type
- Seat belts must be in date in accordance with the manufactures date on the label. The belts may be recertified
- Seat belts must not be mounted to the floor pan
- Seat belts must not cross areas that may cut the belts i.e. not across sheet metal attached to a roll bar
- Seat belts must be replaced if they are worn or the edges are frayed
- Aluminum factory made racing seats required.
- Absolutely no homemade seats
- Seats must be mounted in a manner acceptable to Wake County Speedway Officials
- Seats may not be mounted to the floor pan
- A Wake County Speedway approved window net must be installed on the driver’s side window
- Window net must release from the top and drop down
- Window net bars must be substantial enough to contain the drivers arms in the event of a roll over
- All trucks must have an onboard fire extinguisher
- Extinguisher must be mounted so the charge gage can be checked by Wake County Speedway Officials
- Out of date fire extinguishers are not allowed