These rules are designed to allow many different versions of sportsman cars to compete on an equal and fair footing. Please realize many of the rules are made to keep racing as inexpensive and competitive as possible. If you are unsure of any rule or the spirit of any rule please check with the tech committee. All local track safety rules apply as per the rulebook.

* Vehicle weights must be posted on the top right corner of the front window
* All weights are done full of fuel at the beginning of the race.

There are 3 basic chassis types allowed:

Stock frame with:

•  2950lbs 56 percent left 49 percent rear.

•  The car must be safe and legal to compete as per track safety rules. It must be free of any sharp edges and have straps on the bumper edges to ensure the bumper cannot be a hooked. The frame must extend behind the center of the rear axel and must be factory in appearance and dimensions.

•  Three links allowed.

Sportsman or pro-stock factory front clip with fabricated chassis.

•  3100lbs 56 percent left 49 percent rear.

•  These cars must have a factory front frame clip that is dimensionally unaltered. The clip may be clearanced for the fuel pump. The top of the front cross-member may be also be cut and boxed to allow for oil pan clearance.

•  The lower a-arms must be stock and dimensionally equivalent to the factory arms (For example, the Camaro front clip must have lower a-arms the same length as it came with from the factory.) No ford lowers on Camaro clips. No offset bushings.

• The steering system must have a factory type steering box (no racks), with an idler arm and center-link. Tie rods or rod ends may be used. No aluminum parts. Only adjusting sleeves may be aluminum.

•  The spindle must be a dimensionally correct to the factory specs. (No aftermarket spindles, Cast Iron OEM only.) Holes may be drilled to allow installation of heim joints. Ball joint tapers may be changed. No mono-ball style ball joints.

•  5 inch or larger coil springs must rest in the factory pocket in the lower a-arm.

Fabricated front clip with fabricated chassis.

• 3150lbs 50lbs in front of fire wall 55 percent left 49 percent rear.

•  These cars must have a fabricated front frame clip that dimensionally matches the Camaro factory clip.

•  25 lbs of lead must be mounted to each front frame rail within 18" of the weight jack bolt to the rearward of the car. Weight must be easily removed for tech.

•  The lower a- arms must be stock and dimensionally equivalent to the factory arms (For example, the Camaro front clip must have lower a-arms the same length as it came with from the factory.) No ford lowers on Camaro clips. No offset bushings.

•  The steering system must have a factory type steering box (no racks), with an idler arm and center-link. Tie rods or rod ends may be used. No aluminum parts. Only adjusting sleeves may be aluminum."

•  The spindle must be a dimensionally correct to the factory specs. (No aftermarket spindles. Cast Iron OEM only ) Holes may be drilled to allow installation of tie rod heim joints. Ball joint tapers may be changed. No mono-ball style ball joints.

•  5" or larger coil springs must rest in the factory pocket in the lower a-arm.

•  5” or larger coil.

•  Stock OEM lower control arms ( No Modification)

•  Stock steering box & idler arm.

•  Laser cut centerlink is ok.

•  Hiem or stock tie rod ends are ok.

•  Aluminum tie rod sleeves are ok.

•  Stock production steel spindles only

•  Ball joint changes ok. No mono ball joints.

•  Steel bushings are ok. No heim ends on lower control arms.

•  Tubular uppers are ok.

•  Stock style 1 pc sway-bar only.

Rear Suspension

•  Leaf springs, 3 link or truck arm allowed.

•  No spring links.

•  Rubber bushings/3 rd links ok. No springs or shocks may be used to control the torsional rear end housing movement. (No spring panhards or spring links)

•  Springs must be 5 inches or larger in diameter.

•  Shock mounted inside spring add 25lbs. (Springs must be 5" or greater)

Shocks

•  Must be a steel shock, non-adjustable. No user rebuildable shocks. QA1 shocks allowed

•  Must be mounted directly to suspension. (No cantilever or linkage setups)

•  Only 4 shocks on the car.

Brakes/rotors/hubs

•  Must use a single piston cast iron/factory caliper.

•  No pump style recirculators, check valve style OK.

•  May use aftermarket hub, but must be steel.

•  Brake rotor/hub must be dimensionally equal in size and weight to available factory hub. Rotor diameter must not exceed 12".

•  No curved vane rotors.

•  No wide five hubs.

Rear ends

•  Quick change, full floater, or factory differential. (Must have steel axel tubes)

•  No aluminum carriers on the 9 inch rear ends.

•  Hubs may be steel or aluminum.

•  No traction devices allowed. Only open or spooled rear ends. (No gold track, Detroit locker, tru-tracs, etc.)

 Chassis

•  Minimum 4" frame height.

•  Minimum wheelbase 104 ½ inches.

•  Driver structure must be constructed using .095" or thicker 1.75" diameter tubing.

•  Frame rails must be made from 2x3 inch material. (Subject to tech)

•  Top quality safety and fabrication techniques are expected.

•  The track width must be no wider than 69". (Center of front tire to center of front tire) If track width is 66.5" or less you may subtract 50 lbs. from total weight.

Transmissions/clutches

•  Standard transmissions require scatter shield. Clutches - Stock with steel flywheels and pressure plate. Must be a full diameter with no lightning holes. (Full diameter being a 10 ½ inch clutch disk). Scatter shield must have 3” x 4” inspection hole to view clutch.

•  Transmission must function in all gears and must be available or have been available from the factory. (No Brinn, Jerico, etc.)

•  Automatics must have a working torque converter.

•  No aluminum or carbon fiber drive shafts.

•  Richmond 2 quick OK.

Wheels and tires

•  Wheels - Steel wheels, 10 inch maximum.

•  4.5" offset maximum.

•  Tires - American Racer (#'s to be announced). Same tires from qualifying will run all day and start the main event.

•  Tire Purchase:
8 Tires prior to start of season.
2 Tires per race day per car.

Tire will be available the 3 rd week of April.

•  No softener allowed .

Engines

•  Engine - 365 cubic inch max.

•  Heads, stock OEM heads, or listed aftermarket #'s. no porting, polishing or gasket matching allowed.

•  Cylinder head #'s world products S/R torquer #042660,042670,042650,042750, windsor jr #053030 Chrysler head P5007950 Pro top-line vortec #223 6494 083,#223 6494 906, these heads are only allowed with 1:94 intake valve and 1:50 exhaust valve. Original GM vortec heads are allowed 2:02 intake valve and 1:60 exhaust valve.

•  Four-barrel aluminum manifolds allowed.

•  Two barrel Holley 4412 Carburetor. Base plate must match. Only Choke plate may be removed, must have choke horn.

•  As per carb tech sheet. If in doubt, have your carb pre-teched.

•  No dry sumps or external wet sumps/pumps.

•  Maximum 1 " engine set back, #1 spark plug to lower ball joint

•  No roller cams. No mushroom lifters.

•  11:1 compression max.

•  Cast iron production engine blocks only.

•  Crank center height 11"

•  Engine must within 1 inch of the frame centerline.

Noise level - 95 decibels at 100 feet.

•  All cars must run mufflers.

•  Exhaust must exit under vehicle behind drivers seat or through door or rear quarter with no sharp edges protruding, must have metal heat shield to protect fiberglass (To Tech disgression)

Radios allowed.

No exotic equipment and safety standards to meet requirements as deemed by officials.

Bodies

•  Bodies must be in good shape and condition.

•  Composite bodies only, no carbon fiber bodies. Aluminum or steel doors OK.

•  No down-force bodies.

•  MUST be free of sharp edges, or anything that may puncture a tire under close racing conditions.

•  Bodies must resemble a factory silhouette. No wedge, homemade or radically altered bodies. No altering of body parts as supplied by body manufacturer. (Ex. A five star fender should be unmodified and be a direct replacement on a Five Star body.

•  6 ½" Spoiler Height, no wrap around spoiler, must not extend past the body.

MUST BE A MEMBER IN GOOD STANDING WITH ONE OF THE PARTICIPATING RACETRACKS!!