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FACTORY STOCK


THUNDER VALLEY SPEEDWAY

2005 FACTORY STOCK RULES

In compliance with Outlaw Motor Speedway, Tri-State Speedway and Salina High Banks

    BE SURE AND CHECK FOR RULE CHANGES AT THE    BOTTOM OF THIS PAGE

  1. Any American made full body rear wheel driver passenger car or pick-up. Full frame or unibody with factory steel body. Must be 108” wheelbase, No offset, weight 3100 lbs after race with driver.
  2. Body and frame MUST match make to make.
    • Frame Must remain stock from center of front axle to center of rear axle.
    • Must have stock unaltered floor pan and firewall front and rear.
    • All holes in firewall MUST be sealed off from engine compartment & trunk area.
    • May remove inner fender & open trunk area.
    • No sloping of roof or modification to body parts. May have after market front nose & rear tailpiece. NO DIRT L. M. STYLE.
    • Doors must be welded. Boxing of drivers compartment allowed. Must have inspection panel. Driver must be able to exit from both sides of car in case of an accident.
    • 6” rear spoiler ok. Must be mounted to the rearward most part of the deck lid.
    • Hood scoops allowed. No front opening. No fiberglass hoods.
    • Drivers Compartment: Minimum of three windshield bars in front of driver. Aluminum high back racing seats only, bolted to roll cage, not floor. Driver seat may be no further than rear edge of B-pillar. No mirrors.
  3. Minimum 1.75” O.D. tubing recommended, Cars already built with 1.5” O.D. tubing, .095 will be grand fathered in. Low carbon or mild steel recommended. Four-post roll cage MUST be used with front down bars & rear hoop welded to OEM frame. Drivers head must not protrude outside of roll cage with helmet on. No offset cages.
  4. Door bars: Minimum three door bars, both sides, at least 1.75” O.D. 095 wall thickness parallel to the main frame, Minimum of four uprights tied from frame to top door bar on drivers side, passenger side may X’d with V bar extending out to door skin. Must be X’d to prevent cage from collapsing.
  5.  Bumpers and Rub Rails: May make tubing bumper of round or rectangle, MUST be boxed in on each end. No reinforcement or uprights, push bars or extra metal on bumpers. May have rub rails running from rear of front tire to front of rear tire, not to extend into wheel opening. Rail material 1”x2” rectangle tubing beveled and boxed on both ends.
  6. MUST have tow hooks on front and rear.
  7. Engine: 360 Cubic Inch Maximum with flattop pistons. Stock 350 GM block 3.48 GM stroke crank. Ford 361, Mopar 370 stock block and stock stroke crank for that engine) Ford and Mopar must use OEM parts only, NO SVO or W2 performance parts allowed.
  8. Lift rule: .480” @ valve with .030” lash. Roller rockers allowed.
  9. Hydraulic or solid lift cam only.
  10. No roller cams or lifters. No bleed down lifters.
  11. OEM car iron heads or Vortec heads allowed. No PROACTION Vortec Heads. 2.02” intake & 1.60” exhaust valves maximum.
  12. 23 deg. Heads only, no angle plugs allowed. No porting or polishing of heads & intakes. No match porting of intake to heads. No angle milling. No aluminum heads.
  13. No mismatching of engine parts. GM to GM. Ford-to-Ford etc.
  14. Engine must be in stock location. No set back will be allowed. No engine offset. Engine height 12” from center on crank to ground. + or – 1”.
  15. Aluminum high-rise intake allowed. Legal intakes are: 7116 Edlebrock, 7101-RPM Edelbrock, 8016 Wiend.
  16. Carb 3310 Holley or equal. Will be checked with tech gage.
  17. Racing gas only, No additives.
  18. Mechanical fuel pump only.
  19. Must have racing fuel cell with canister.
  20. Headers allowed, mufflers optional.
  21. Stock ignition or HEI type distributors system only. No MSD, No  Mag distributors.
  22. Aluminum radiators and water pumps ok. Aluminum pulleys allowed.
  23. Front engine mounted after market power steering pump OK.
  24. Front Suspension: All components MUST be steel and “unaltered”, approved OEM parts. Must be in stock location and match frame. OEM rubber A frame bushing ONLY. All A-frame mounts and boltholes on frame MUST be in stock location.
  25. Front Shock: Must be in stock location. Steel bodied racing shocks allowed. May use bearing end mount shocks, Shocks MUST have welded type mounted bearings, Frame and upper control arm may be cut so shock can be mounted to bar above frame.
  26. Racing Springs allowed.
    • Front springs must be in stock mounts and location
    • Rear springs may use buckets in frame as long as they are in the stock location.
  27. Rear shock: May use same method as front as long as they are in the stock location.
  28. Rear Suspension: All components must be steel, unaltered OEM parts in stock location and MUST match frame. OEM rubber control arm bushings only. All control arm mounts and boltholes on frame must be in stock location. No independent rear suspension.
  29. Rear ends: Any approved OEM passenger car or truck type rear end allowed, Grand National rear ends ok, Must use OEM bushings and stock location for make of car.
  30. No panhard bars unless OEM equipment on make of car.
  31. Rear ends maybe locked. Full steel spool steel mini spool or welded axle only. No aluminum. 1” inspection hole in center section is recommended. Steel axle ONLY.
  32. Brakes: Any OEM type disc or drum brake ONLY. No aftermarket brakes allowed. Must have one working brake per wheel. No brake shut offs or restrictors. Bias can be used.
  33. Aftermarket brake pedal ok. No brake bias adjusters in drivers compartment.
  34. Transmission: Automatic or standard OEM ONLY. Standards must use OEM type clutch, flywheel and pressure plate-10” minimum. Automatics MUST have working 10” torque converter MINIMUM. No aluminum or lightened flywheels allowed. No mini clutches or modular clutches allowed. No direct drives. All transmissions MUST have all working gears.
  35. Drive shaft must be painted white.
  36. Must have drive shaft safety loop located 10” from rear of transmission tail shaft. Must be made of 2” x ¼” flat strap.
  37. Hydraulic throw out bearing ok.
  38. Tires: Hoosier asphalt takes, or IMCA stamped take offs. Grooving allowed, No recaps. Bead locks ok.
  39. Wheels: 10” maximum steel wheel ONLY, offsets ok, Beadlock on right rear only.
  40. Steering quickeners OK
  41. Battery and Starters: 1  12 volt battery only, Must be in marine type case securely mounted to metal frame behind seat or in metal battery tray mounted securely to frame in trunk area. Starter must bolt in stock location.
  42. Must have master power disconnect switch. Must be clearly marked and with in easy reach of the driver.
  43. All ballast MUST be painted white with car # and securely fastened to car.

 

THERE WILL BE NO ENGINE CLAIM IN THIS CLASS. ONLY A .00 PROTEST FEE. There will be a Shock claim.

PROTEST RULE: It has been brought to our attention that this rule was not that clear. So here is a better posting. Any car in the "A" Feature Lead Lap may be protested from bumper to bumper for $75. A driver may protest 2 cars a night and may protest as many cars a racing season as they wish. If a car is PROTESTED the driver of that car and ONE member of the pitcrew will be allowed to be there to watch the tech. The driver that has protested CAN be there to witness the inspection if the wish to. If you wish to PROTEST a car you must notify Mike Baker or Track Tech man Donnie Walker immediately and no race results will be sent for payout until the Protest has been completed. IF you are Protested and found to be illegal it is a 25 point penalty PLUS loss of points and pay for that night of racing. IF you wish to PROTEST a car confidentially then you can do so as well.

 

Amended rules after the Rules Meeting:

  1. Must be 91" back of the motor to the center of the rear-end. If you can't get the 91" you may cut out cross member, knock firewall back with a hammer, Camaro's are 89 1/2" in stock location.
  2. DO NOT CUT OUT FIREWALL!
  3. Stock for Stock! Strut body can be put on older style car frame.
  4. DO NOT CHANGE THE WHEEL BASE!
  5. Clyinder heads flat angle mill  ok, NO PORTING!

    6.  Brake bias adjuster ok in the driver's compartment.