2008 Street Stock Rules
1. Body: Any American manufactured full body passenger sedan with a factory steel top. No station wagons, pick-ups or sports cars allowed. 101 minimum wheelbase both sides NO EXCEPTIONS! All glass, mirrors and chrome MUST be removed. Doors MUST be welded or securely bolted shut so they cannot come open during competition. Hood and trunk lid MUST be safely pinned (NOT BOLTED) for easy removal. A minimum of three (3) steel bars is required in front of driver. It is sometimes difficult to move the motor back because of the firewall. Before cutting the firewall you should call the speedway. It is MANDATORY to retain at least 50% of the factory firewall and anything that is replaced must be done so with a minimum of 18-gauge steel or thicker to make the firewall complete from side to side and top to bottom to seal the engine compartment from the driver. Officials have the final decision, so dont remove too much or you will be replacing it before racing, please call first. Floor pans MUST remain stock from frame rail to frame rail and from front firewall to rear firewall. Any filling of gaps or voids to seal the driver from the outside elements must be done so with a minimum of 18-gauge steel or thicker. At NO time will aluminum be allowed to seal off any of the firewall or floor pan in drivers compartment. Body panels that are made due to lack of availability MUST be made of steel - NOT ALUMINUM and MUST appear stock.
2. Bumpers: Original or equivalent to stock appearing bumpers or aftermarket nosepiece ONLY. NO bars allowed outside body or frame to act as nerf bars. Bumpers MUST be in stock location. Front and rear bumpers MUST be capped to the fender with minimum of 3/16 thick plate metal, the width of the bumper to help keep bumpers from locking together and being torn off. Plate may be bolted on with carriage bolts or welded. NO sharp or protruding edges that may interfere with safe racing. All cars MUST have lifting hooks or cables, BOTH front AND rear and MUST BE PAINTED WHITE so it is easy to find them and speed up the removal from the track. THIS IS MANDATORY!
3. Frame and Suspension: Any car body pre-1964 may interchange complete frames from later model cars such as 1960 Impala to later GM ONLY. Frames cannot be interchanged from manufacturer to manufacturer. All front suspension parts MUST remain stock with the exception of IMCA legal tubular upper control arms. No heim joints on any suspension parts or steering will be allowed. Weight jacks, racing springs and shocks are allowed. Shock location may be altered for weight jack installation. Rear suspension MUST remain factory type. If any new brackets are installed such as to install a 9-inch ford rear-end, factory-trailing arms MUST be bolted in stock location. This will be teched after races and a 1" maximum tolerance either direction will be allowed. Same rules apply to frame mounts. If arms have been altered for such reasons as pinion angle shortened or lengthened they must be securely welded and cannot be adjustable. Speedway is now offering a spare tube non-adjustable rear control arm for GM cars. These are also now legal to run for cost and availabilty reasons. Frames are commonly weakened by rust and it is acceptable to box in frames but unacceptable if one cuts any section of frame out and replaces it with anything other than a factory section of frame. Adrian Speedway will allow aftermarket iron in front of steering for such reasons as replacing bent frame horns and on the rear of the car for such reasons as replacing rotten frame-rails on metric cars. If this is done, replaced steel MUST be same size as factory frame and cannot be cut any further forward than the flat area behind the rear-end. If you have questions you should call the speedway before you cut your car. Ballast allowed. All ballast MUST be painted white with car number clearly marked on it. All ballast MUST be mounted with two (2) 1/2 bolts. NO additional traction arms or devices.
4. Steering: Original type ONLY. Quick steer optional. NO heim joint tie-rod ends.
5. Brakes: All cars will have working 4-wheel braking system. 4-wheel disk optional. MUST be factory OEM parts - adjustable brake bias optional.
6. Rear-end: MUST be in stock location. May be locked. Passenger type ONLY. 9-inch ford is allowed and the 9-inch floater is also legal in this class. MUST be mounted with stock arms in position. NO fifth arms, etc. NO electronic traction devices allowed. 360-deg driveshaft loop required and must be constructed of at least .25 x 2 steel, mounted 6 back from front of driveshaft. Driveshaft MUST be painted white. Steel driveshaft only. NO true track lockers or gold track lockers.
7. Roll cage: MANDATORY 6-point roll cage with x-brace behind driver with at least 3 driver side and 2 passenger side door bars attached to cage with offset upright supports between each bar. Minimum tubing outside diameter is 1Ύ with .095 wall thickness. Roll cage MUST be padded around driver area and have sufficient clearance between driver and sidebars. Fire retardant padding RECOMMENDED.
8. Engines: Engine interchange allowed. Aluminum intake manifolds allowed. Engines must be solidly fastened to mounts and chained to prevent torque movement. Engine setback No. 1 plug even with upper ball joint. Must remain centered in frame. NO aluminum heads or blocks. Transmission tunnel may be altered for engine setback reasons. You must maintain over 50% of the firewall and trans tunnel and anything you replace must be done with a minimum of 18-gauge steel or thicker and NO ALUMINUM will be allowed.
9. Starters: All cars must have the capability of starting without being pushed or pulled. All cars must join line-up on demand, unaided, or go to the rear of that race.
10. Carburetion, Fuel and Fuel Pump: One 4-barrel maximum. Double pumpers allowed. Aluminum intake manifold allowed. Gasoline ONLY. NO alcohol. NO electric fuel pumps. NO fuel lines in drivers compartment.
11. Transmission: Berts, Brinns, Falcons and altered factory transmissions will be allowed. Mini-clutches allowed. NO direct drives. Must be able to engage in forward and reverse while running from a standing stop. Standard transmissions must run explosion proof bell housings.
12. Exhaust: Headers will be allowed.
13. Tires and Wheels: Steel wheels ONLY will be allowed and they may be welded and reinforced for safety. 1 lug nuts, 5/8 wheel studs MANDATORY. Bead locks are allowed - right rear ONLY. McCreary American Racer G-60 or Hoosier G-60 with IMCA stamped on sidewall and the asphalt take-offs and you may groove and sype these tires.
14. Fuel Cell: Fuel cell MANDATORY. Must be mounted by at least 2 solid steel straps - 2 x 1/8 around fuel cell. Fuel cell must be enclosed in 20-gauge steel container and must be mounted securely behind rear axle, protected by roll cage tubing. Protective tubing must cover the rear and extend past both sides of the fuel cell. Fuel cell must be a minimum of 4 ahead of rear bumper and no part of fuel cell shall be lower than protective tubing. Trunk floor may be removed to safely install fuel cell. Rollover valve or flap in fuel cell is MANDATORY.
15. Battery: Must be in battery box, securely fastened to floor.
16. Safety Equipment: Seat belts must be 5-point racing type seat belts. They must be at least 3 lap and 3 double shoulder harness with sub-belt. Aluminum racing seat MANDATORY. Must be securely fastened to frame and roll cage and padded. Fire suit MANDATORY. May be 1 or 2-piece and must be worn at all times while car is on track. Approved racing helmet MANDATORY. Should be no more than 3 years old. Fire extinguisher must be mounted within reach of driver. Car must have battery switch. Switch must be clearly labeled ON/OFF and be easily accessible by track safety personnel. Switch will be mounted behind drivers seat on all cars. NO EXCEPTIONS! All cars must be marked on drivers side door or rear doorpost with Gasoline spelled with minimum 4 letters. All cars must have drivers side window net before they will be allowed to compete. Window net must be in place during all competition or driver and car will be disqualified from that nites events.
17. Lettering: All cars must be numbered on doors and roof with numbers large enough for scoring tower to read - 3 wide x 18 high. All cars need 6 numbers on front and 8 numbers on rear, preferably in windshield area. All cars must be neatly painted and lettered with number colors contrasting from body colors. Sponsors names must not interfere with numbers.
18. NO mirrors or 2-way radios or listening devices allowed.
19. Any and all interpretations of these rules are left up to track officials. TRACK OFFICIALS DECISIONS ARE FINAL. NO EXCEPTIONS!