Late Model Street Stocks

Rules For The Late Model Street Stocks

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Late Model Street Stocks

ENGINE

1. ENGINE LOCATION: Cannot be more than 4 inches from stock location. No offsetting engines. For the 1978-1987 GM metric frame and engine combination the back of the block to the front of the crossmember (measured at the frame) is a maximum of 22.75 inches for GM engine and 26.625 inches for Ford engine and 25.75 inches for Chrysler engine.

2. ENGINE SIZE: Maximum (360) cubic inches on Chevrolets & (370) cubic inches on Fords & Chryslers. No aluminum blocks, No lightened blocks. Wet sump systems only. Any American make. Must run GM motor with body chassis, Ford with Ford, Chevy with Chevy, etc.

3. Steel heads only. Chevrolets must be 23 degree heads, OEM value arrangement. No 40 / 60 split. No spread port exhausts ports. No spread port headers. Offset rockers will be allowed if the offset does not exceed .250″. Stud girdles and shaft rockers allowed.

4. Flat tappet cam shaft only. No roller cam shafts and no billet cam shafts. No roller lifters. Chevy must run Chevy stock diameter lifters and Fords must run Ford stock diameter lifters, etc.. Lifters must be magnetic.

5. Maximum valve spring seat pressure 160 pounds.

6. No titanium valves allowed.

7. No plastic two piece intake manifolds. No externally lightened intake manifolds allowed.

8. No valve covers used for oiling valve train allowed.

CARBURETOR

9. Any (2) barrel carburetor with 1 11/16th throttle bore at throttle plate. Must be naturally aspirated. No fuel injection.

10. Maximum air filter height 4 inches.

EXHAUST

11. Headers must reach the front door and be under the car, 180 degrees allowed. No side discharge.

TRANSMISSION

13. Must have at least 1 gear forward and 1 reverse, plus a neutral position. With motor running and car in a still position, driver must be able to engage car in gear and move forward, then backward. Automatic transmission must have an approved 270 degree scatter shield. No Transmission coolers or lines allowed in drivers compartment. Standard transmission: aftermarket transmission allowed. Transmission with an internal clutch allowed. Standard transmission must have a working disc clutch inside an approved explosion proof bell housing.  Triple disc allowed. Internal clutched transmissions without an explosion proof bell housing must have a 270 degree scatter shield.

WEIGHT JACKS

14. Weight jacks allowed 1 per corner.

STARTER

15. Starter must be operational and must be in stock location.

FUEL AND FUEL TANK

16. Fuel tank must be securely mounted in trunk area. Fuel shut off valve required. Tip over valve required. Fuel cells must be encased in an approved container of no less than 18 gauge metal on side, top and bottom. Mechanical fuel pumps only and in stock location. Belt drive fuel pumps Ok. No electric fuel pumps. No fuel lines in driver’s compartment or ridged fuel lines from motor to tank. Alcohol, Methanol or Ethanol allowed. No nitro or any other additives allowed.

IGNITION

17. Any battery operated ignition. No magnetos.

18. Magnetos and/or crank-triggered ignitions are not allowed.

19. No more than one (1) coil or ignition box may be used.

20. Kill switch required within easy reach of the driver. The switch must be clearly marked “OFF” and “ON”.

21. Ignition box must be out of reach of driver.

22. Single memory digital tack will be allowed. (High RPM memory only)

BATTERY

23. 12 or 16 volt battery’s allowed. Must be properly covered and securely mounted in a metal frame behind the seat or in the trunk.

REAR END

24. Floaters or 9” Ford rear ends allowed. Quick change rear ends are allowed. Steel axles and axle tubes only. Quick change must use a ten inch ring gear and minimum one inch wide spur gears.  No spin carriers, torque bias or cambered rear ends allowed. No traction control devices.

REAR SUSPENSION

25. All suspension must be steel. No aluminum or titanium. Rear suspension must be type for year and model of chassis and in stock location only. Stock chassis mounts in stock locations. Replacement of control arms is allowed. Must be steel only. Control arms must be mounted in stock location only. Upper control arms must be mounted to factory chassis cross member. Upper control arms must be mounted to rear end with same left to right angle as what was stock with the frame being used. Both upper control arms must match each other and both lower control arms must match each other in material, size, rod ends and bushings but may be different lengths. All control arms must be straight and solid in design. All bolt holes for mounting control arms must be round (no slotted holes) in chassis, control arms, or rear ends. A maximum of five mounting holes allowed at each mounting point of lower rear control arms on rear end housing . No walking or sliding styled rear ends. Pan Hard bars are not allowed. Coil springs must be mounted to the top of the rear end housing with a maximum of a 2” offset from the center of the spring and the center of the housing. Suspension covers of any kind are not allowed. Rear sway bar is not allowed

FRONT SUSPENSION

26. All suspension must be steel. No aluminum or titanium. Front suspension and steering must be unaltered, stock and in stock location. Center links must match frame being used. Idler arms and steering boxes must mount like stock and in stock location. Any OE unaltered passenger car spindles only. Inner tie rods must be OE but outer tie rods may be replaced with Heims. Adjustable upper A-Frames optional. No aluminum. Upper A frame mounts location may be altered. Lower “A” frames must match frame being used and mounted in proper location. No slotted, offset or bearing type bushing in lower “A” frames allowed.. GM 1978-1988 metric “G” body frame’s are allowed to use the Nova Lower “A” frames.

SPRINGS

27. Stock position for the year and model chassis. Spring pockets may be changed, but not excessively. Coil style car must remain coil and leaf style car must remain leaf. Racing springs allowed.

SHOCKS

28. One shock per wheel only. Only conventional type (closed on one end) single shaft shocks allowed. No canister, remote reservoir or adjustable shocks allowed. Shocks must remain with in twenty degrees of vertical.

FRAME

29. Frame must be a complete, full factory, unaltered, stock material and length, and has 108″ minimum wheel base. No frames under unibody cars. Unibody frame rails may not be shortened or lengthened, but may be tied together. Motor and body should match. Example ford engine must run ford body ect. but the GM frame listed in rule #1 above does not have to match engine and body. Full frame cars may replace frame from spring pocket, including spring pocket, to back bumper to secure fuel cell area. Any frames not meeting this rule is subject to a weight penalty or may not be allowed.

WHEELS

30. Reinforced allowed with heavy steel. Right rear bead locks are required. All other corners are optional, must be steel 8” maximum width. 1” lug nuts required. No titanium allowed.

TIRES

31. Tires must be either Hoosier, H40 hard compound or A40 medium compound size 265 or 275. No softening of tires allowed. Grooving & sipping allowed.

RADIATORS

32. Stock position only. No radiators or lines inside of car body. 2 gallons cooling tank inside of trunk area optional. Electric fans allowed.

BODY

33. All hoods and trunk lids must be securely fastened.

34. AFTER MARKET BODIES

Aluminum allowed.

a. Deck must be flat, front to back end and side to side. Maximum deck height is 40” measured from top of deck to ground. No part of body maybe wider than 72”. Except for the front nose piece can be as wide as the front tires. No external rub rails allowed. Side sail panels may be no farther ahead than the drivers seat and no farther back than six inches in front of spoiler brace. The leading edge must run within two inches of 90 degrees from roof to quarter fender. Top edge of side sail panels will be measured from roof line straight to the deck in front of spoiler brace and must be within +/- four (4) inches of a straight line.. Four (4) inches of bowing of the panel from top to bottom allowed. Must have a minimum 6 inches between sail panel and spoiler brace.  Sail panels must be solid and the same side to side. Spoiler maximum 6” of flat material measured from base. Width will be no wider than quarter fender to quarter fender. Spoiler is allowed to have four (4) spoiler supports. Supports may be no taller than eight (8) inches and no longer than fifteen and one half(15.5) inches. The top of the spoiler brace  may be no more than ten (10) inches long. The front of the spoiler brace may be no more than three (3) inches tall. Spoiler supports may be no more than two (2) inches past the spoiler. Side panels (doors fenders and quarters) must be aluminum and meet deck and extend to bottom of frame rail, maximum five (5) inch skirt allowed (metal or rubber only) below frame. Body must remain three inches above the ground. Must run a nose cone (no dirt nose, late model nose, etc) mounted with maximum of 45” from middle of lower ball joint to furthers front part of nose which must cover front bumper. Nose cones must remain six inches off the ground. May run a complete tail cone. A rear valance panel Is not required. Roof must be made out of steel, aluminum or fiber glass. Roof must be mounted with a maximum of three inches of slope measured parallel to the deck with a 12” minimum door window opening. Roof must measure a minimum of 40” wide by 48” long and a maximum of 50” wide by 54” long. Must have an A pillar minimum of 1” wide and a maximum of 2” wide and must run straight from roof to fender and be attached to the roof and front fenders. Maximum 9”x12” with 1” Bow side sails allowed on A Pillars. Hood must be flush with top of fenders with a maximum of a 2” bow. Rear of hood must be sealed to deck. Air filter cannot be more than 4 inches above hood.

35. OE BODIES

a. Any U.S. manufactured full body passenger car 1970 or newer retaining its stock body lines and dimensions. No external rub rails allowed. Car interior gutting is allowed. Front grill area maybe tined and screened when using OE bumper. Bumper must be attached to fenders (OE bumpers maybe replaced

with OE looking aluminum bumper) or after market nose cone (no dirt nose, late model nose, etc). Nose cone must cover the bumper. Rear valance not required. Doors must be securely fastened. Wheel wells maybe enlarged for tire clearance. Hood must be flush with top of fenders with a maximum of a 2” step or a bow .Air filter can be no more than four inches above hood. Rear of hood must be sealed to deck.

Spoiler maximum 6” of flat material measured from base. Width will be no wider than quarter fender to quarter fender. Spoiler is allowed to have four (4) spoiler supports. Supports may be no taller than eight (8) inches and no longer than fifteen and one half(15.5) inches. The top of the spoiler support may be no more than ten (10) inches long. The front of the spoiler brace may be no more than three (3) inches tall. Spoiler supports may be no more than two (2) inches past the spoiler. Side panels must be steel, aluminum or memory rubber.

BODY INTERIOR

36. Driver compartment maybe fully tubbed. Must have a leg saver guard mounted between drive shaft and interior tin. Minimum of 12-gauge steel or 3/16” thick aluminum must run from back of drivers seat to the foot well and must be a minimum of 15″ high. Must have a minimum of 3 windshield bars, minimum of 1/4” solid bars, Screen recommended but not required. Nothing adjustable from cockpit (shocks, weight jacks, ignition and etc.) except brake bias.

REAR VIEW MIRRORS and CAMERA’S

38. Rear view mirrors are not allowed. No camera’s aimed at any suspension parts allowed.

DRIVE SHAFT

39. Must be painted white, yellow or orange fluorescent is recommended. A 360 degree drive shaft loop is required. Drive shaft hoop must be a minimum of 5″ from front “U” joint and/or a maximum of 12″ from front “U” joint. Must be constructed of at least 1/4” by 2” steel.

ROLL BARS

40. A full perimeter four point roll cage with an “X” brace in rear and rear kickers must be used. Roll bar padding required in driver compartment. Fire retardant padding recommended. Roll cage must be securely welded to frame. Must have a minimum of one cross bar in the top of halo of roll cage. Minimum .095 inch thickness wall tubing at least 1.666” outside diameter for cages and door bars. 1.5 inch outside diameter tubing allowed but must have fifty pounds mounted in front of the mid plate. No cages less then .095 inch thickness or less then 1.5 inch outside diameter will be allowed.  Must have four horizontal bars on driver’s side and three horizontal bars between driver and passenger side of car. Must have three vertical bars on driver’s side not counting roll cage uprights. Gussets should be used at all joints of principal members. Must have rear head support.

BRAKES

41. Foot operated hydraulic type, operating all four wheels when applied. Brake shut offs are not allowed. Rear brake lights are not allowed.  Aluminum calipers allowed. Single piston calipers only. Vented rotors required on front and rear. Front and rear brake bias allowed, left to right not allowed.

CAR NUMBER

42. Must be painted on both sides and on top of car. All numbers must be 18” high; 24” highly recommended. A number is required facing the front and rear of the car with a minimum height of 6”.

WEIGHT

43. Car with driver must weigh a minimum of 2900 pounds immediately after each race. Bolt on weights allowed as long as securely fastened and painted white – 1/2” bolt required per one hundred (100) pounds. Weights are not allowed in cockpit or on bumpers. Weights must be mounted inside body. Car number required on weight.

SAFETY

44. Helmets are required and must be Snell SA05 or SA10 or SA15. Helmets must be worn at all times car is on the track and must accompany vehicle at time of inspection. SFI approved full fire suits of a flame retardant nature must be worn by all competitors. Fire retardant neck braces and fire retardant gloves and shoes are required. A head and neck restraint system, Fire retardant socks, underwear and hood are highly recommended. Full-size (minimum 16″ x 20″) driver side window net required and properly mounted to roll cage. Window net to be mounted so latch is at top front of window. Arm restraints are highly recommended. Five point safety belts, sub belts, and shoulder harness required (Required being less than 3 years old). The shoulder harness must be mounted securely to the roll cage. Kill switch required within easy reach of driver. Switch must be clearly marked “OFF” and “ON”. All cars must have an aluminum racing seat fastened to roll cage, not bolted to floorboard. Aluminum racing seat fastened to roll cage required so top of helmet has a minimum of 2” clearance to the top of the halo bar. Fire retardant roll cage padding recommended. No transmitting or listening devices, except race receivers, allowed in the race car. Must have rear head support.

CLAIM RULES

45. First four position finishers must report directly to claim area and are subject to head claim by any other driver finishing fifth or back in the feature. Failure to report directly to claim area will result in disqualification and loss of money and points for first infraction. Heads are still claimable. Any driver lapped by the fourth place car is not eligible to claim. Driver allowed one claim per event, regardless of outcome of that claim. In case of multiple claims on same heads, heads will go to qualified claiming driver finishing furthest back. Driver making claim must drive his race car immediately after finish of feature, under its own power, directly to claim area. Only drivers and officials allowed in claiming area. Only driver may claim head and only driver may agree to sell or refuse to sell heads. First sell or no sell by driver being claimed is binding. Promoter may claim any heads finishing in the top ten immediately following the feature. Driver claim takes precedence over promoter claim. Refusal to sell forfeits all cash and contingency winnings for feature and any trophies earned in feature. Any driver refusing to sell heads, when claimed within the rules, loses his/her right to claim any driver’s heads for remainder of season. Refusal to sell will result in loss of all pay and points for that event. Driver will be suspended for two point’s events and will be required to pay a $300 fine to the track points fund before being allowed to race again. All claimed heads must be removed from car at the track; buyer must examine heads before removal. Once removal is started, sale is final. Drivers are to be held accountable for any sabotage discovered while pulling the heads, and will be responsible for any and all penalties as a result of any sabotage. Any sabotage discovered to a claimed head will result in driver being suspended from competition for the next two scheduled events. No driver may claim any more that 2 times during the calendar year. After a driver has claimed one time, the next driver he claims has the option of part exchange or cash. No driver may claim unless he has competed at the track the 2 previous events. Claim is in effect on opening night for all eligible drivers and driver must have been at the track on opening night to be eligible to claim 2nd night of season – 50% of races thereafter. No one driver may claim any other one driver more than once during the current calendar year. a. Head Claim – $600 cash claim on heads. Claim includes complete head assembly (which includes head casting, valves, valve springs, valve retainers, valve keepers, screw in studs and guide plates, rocker arms are NOT included. If heads are found to be illegal then the heads stay with the car and the car is disqualified. $575 will be returned to the claimer and $25 will go to the track. B.$300 carburetor claim. If carburetor is found to be illegal then the carburetor will stay with the car and the car is disqualified. $275 will be returned to the

claimer and $25 will go to the track. c. $50 claim per shock, all 4 are claimable, same procedure as in engine claim. If shock is found to be illegal then the shock will stay with the car and the car

is disqualified.

TRANSPONDER MOUNT LOCATION:

46. AMB-it Transponder must be mounted behind the motor plate or mid plates. May be mounted on the backside of motor plate or mid plate, or beyond. *Remember the transponder will not read through metal and must be less than 2 feet from ground.

RACE RECEIVERS

47. Race receivers are mandatory.

NOTE

48. Any rules not covered here or any rules in question will be left up to the officials in charge. Their decision will be final.

360 Sprint Cars

Rules For The 360 Sprint Car Class

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360 Sprint Cars

CHASSIS

1. All sprint car frames must be a sprint car design. Both torsion bar & coil over are allowed.

2. No aluminum frames, no aluminum king pins, no aluminum kick bars and no aluminum bumpers.

3. Roll cages must be a minimum of 1.375” diameter .095” thickness, seamless tubing.

4. All racecars must have a front bumper, rear bumper and kick bars on both sides, steel only.

5. All racecars must have a racing fuel cell with bladder.

DRIVE-TRAIN

6. All cars must have a minimum of (3) wheel brakes. (Inboard & front brake)

7. In & out box, sliders & shifter rear ends only. No transmissions or clutches.

8. The drive line must be fully enclosed by a torque tube; torque tube must have a 3/8” inspection hole. A drive shaft loop or a drive shaft strap is mandatory.

ENGINE

10. All engines maximum 360 C.I. (2% allowance when tubing for C.I.)

11. Cast iron blocks only.

12. Only ASCS Aluminum heads or cast steel heads allowed. Only 23 degree heads will be allowed. Offset rocker arms will be allowed if the offset does not exceed .250″. No raised runner heads allowed. Titanium valve retainers will be allowed. Any Ford cast iron head will be allowed.

13. Any size length nozzle allowed in the injectors. Injectors: 2 3/16 inch maximum inside diameter of injector stack- 2 3/16 inch at least 3 inches in length. Note: Larger injectors may be used minimum of 3 inches in length must be installed in stacks above the Butterflies. (bevels, tapers, etc. are NOT included in the 3” measurement of the 2 3/16 inch diameter restrictor).This sleeve must seal with the injector stack. No claim. Speedway reserves the right to implement stack restrictors based on competition.

WEIGHT

14. Car and driver must weigh a minimum of 1500 pounds immediately after each race. Any added weight must be mounted with at least two (2) ½-inch diameter grade (8) bolts, painted white and have car number painted on it. All bolt-on weight must be between front and rear axles and between top and bottom frame rails, and must remain on car during the entire event. Cars not meeting these specifications will be disqualified.

FUEL

15. Alcohol or ethanol. No gasoline.

16. No performance additives allowed.

SUSPENSION

17. No adjustable (from cockpit) shocks or torsion bars allowed.

18. No external reservoir shocks allowed.

19. Coil over suspension is allowed.

TIRES

20. Right rear: Right Rear: Hoosier 105×16.0-15 Medium or Hoosier 105×18.0-15 Hard. Left rear: Hoosier H12, H15, D12, or RC1

21. Front tires are open.

22. No tire softeners allowed. Tires must durometer within factory specifications.

WHEELBASE

23. Minimum 84” wheelbase.

WHEELS

24. No plastic wheels allowed. No dual wheels allowed.

25. Carbon fiber wheels will not be allowed.

26. Beadlocks are highly recommended.

27. Maximum right rear width is 18in. and maximum left rear is 15in. Must be steel or aluminum.

WING SPECIFICATIONS

Top Wing:

  1. Center foil maximum size of 25 square feet with a maximum width of 60 inches with a one-degree plus or minus tolerance.
  2. Center foil shall be fully sheathed in aluminum. Vent holes are strictly prohibited.
  3. No wicker bills or Gurney lips permitted on Center Foil, unless center foil is totally flat then a one-inch wickerbill is allowed.
  4. Other than the slider mechanism, no moving parts allowed on or in foil structure.
  5. The 12-inch section located at the rear of the Center Foil must not have the belly/curl are out of proportion with the rest of the Center Foil. The belly/curl arc must span the entire length of the Center Foil and appear to be a gradual arc with the deepest point no further back than 48 inches from the leading edge. As measured on a 12-inch straight edge, the belly at 6 inches from the rear of the Foil may not be deeper than ½ inch. There is zero tolerance on this ½ inch depth. It is suggested that the wing blue print specify 15/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the ½ inch specification. (This is ½ inch measurement ensures that the belly/curl are is gradual).
  6. The belly/curl arc must start at the radius of the Center Foil’s leading edge and shall not exceed a depth of 2 ½ inches. Center Foil thickness cannot exceed 9 inches. Center Foil top surface from side to side must remain flat. Center Foil must be one-piece construction. No split or bi-wings will be permitted. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings. Top wing must not extend beyond outside of rear tires.
  7. Two stationary foils or rudders will be allowed to run the entire length of the underneath portion of the top wing. Maximum height proportions are 1 inch at the front of the 3 inches at the rear. Nowhere shall the foil exceed 3 inches in height. Cockpit adjustable wings allowed.

Front Wing:

  1. Center Foil maximum size of 6-square feet with a maximum width of 36 inches with a one degree plus or minus tolerance.
  2. Center Foil shall be fully sheathed in aluminum. No vent holes allowed.
  3. Wicker bills up to 1-inch are allowed on nose wing, flat or dished.
  4. Maximum distance from the Center Foil front edge to the front edge of the front axle may not exceed 20 inches.
  5. The Center Foil front edge must remain at least 1 inch behind the front edge of the front bumper. Center Foil top surface from side-to-side must remain flat.
  6. Center Foil must be one piece. No split or bi-wings will be allowed.
  7. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings.
  8. The Front Wing must not extend beyond outside of front tires. The Front Wing may not be cockpit or driver adjustable while the car is stationary or in motion.
  9. No moving parts allowed on or in foil structure/
  10. The 5” section located at the rear of the front foil must not have a bell/curl arc that is out of proportion with the rest of the front foil. As measured on a 5-inch straight edge, the belly at 2 1/2 inches from the rear of the foil may not be deeper than 3/8 inch. There is zero tolerance on this 3/8-inch depth. It is suggested that the wing blue print specify 11/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the 3/8-inch specification (This 3/8-inch measurement ensures that the belly/curl arc is gradual).
  11. The belly/curl arc must span the entire length of the front foil and appear to be a gradual arc with the deepest point, no further back than 12 inches from the leading edge. The belly/curl arc must start at the front foil’s leading edge and shall not exceed a depth of 2 inches. Top foil thickness cannot exceed 3.6 inches.
  12. No rudders or fins on Front Wings.

Side Board Panels:
a) All braces or supports shall be oriented thin edge to face the air stream. Only rectangular, round or oval metal braces not exceeding 1 inch in width may be used. No adjustable bracing allowed.
b) No aero elliptical brace material permitted.
c) No brace or support shall resemble a wicker bill or a split wing.
d) Side boards must be mounted within 8 degrees of square to the center foil and parallel to each other. No kick-out allowed.

FRONT:
e) Front side boards maximum 12 inches tall and 26 inches long with no more than one inch overhang from the center foil front edge to the side board front edge.
f) Side boards may have front, back, top and bottom turnouts of no more than 1⁄2 inch.
TOP
g) Top wing side boards maximum size, 72 inches long and 30 inches tall. The top 2/3’s of each top
wing side panel shall consist of only 2 corners. Each corner shall be set at a 90° angle with no varia nce. This portion of the side panel’s leading edge cannot be behind the center foils leading edge.
h) Panels must be of one-piece construction.
i) Panels must be fabricated flat with no more than a two (2) inch turnout or flap on the front or rear of panel and no more than one and a quarter (1 1/4) inch on the top and bottom.

SAFETY

46.Competition shoulder harness and lap belt must be a minimum of 3” wide. Submarine belt and arm restraints are mandatory. Metal to metal buckles are required on shoulder harness and lap belts. All belts are required not to be over 2 years old.

47. Fire retardant racing suit is mandatory.

48. Fire retardant racing gloves and shoes are mandatory.

49. Fire retardant socks, underwear and hood are highly recommended.

50. Neck brace is required.

51. Roll cage net is mandatory or full contained seat with head rest.

52. HELMETS: SNELL SA2005, SA2010 or SA2015 required. Helmets must be worn at all times when driver is operating racecar.

53. No transmitting or listening devices, except race receivers, allowed in the racecar.

54. No electronic monitoring computer devices capable of storing or transmitting information, except tachometer, allowed on the racecar.

55. Aluminum racing seat fastened to roll cage required so top of helmet has a minimum of 2” clearance to the top of the halo bar.

NOTE

56. Any rules not covered here or any rules in question will be left up to the officials in charge. Their decision will be final.

TRANSPONDER MOUNT LOCATION:

57. AMB-it Transponder must be mounted on the right front. May be mounted on either vertical bar in front of front axle. *Remember the transponder will not read through metal and must be less than 2 feet from ground.

LISTENING DEVICE

58. A functioning RACEceiver is mandatory in all competition. Channel must be 454.000.

GENERAL RULES

Track officials shall have responsibility for rules regulations enforcement at all events. At the discretion of track officials in charge, any competitor may be disqualified for rules violations, hazardous equipment or hazardous actions. All cars are subject to inspection at any time. Approval of vehicle by the inspector shall mean only that the vehicle is approved for participation in a competitive event and shall not be constructed in any way to mean that the inspected vehicle is guaranteed mechanically sound. Be it further declared that the inspector shall not be liable, for any losses or injuries resulting from the same. Any unsportsmanlike conduct by the drivers, owners and/or pit crews shall be grounds for disqualification. Drivers are responsible for the conduct and action of their crew members. No alcoholic beverages will be consumed by driver or crew prior to or while competing. No use of illegal drugs. The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these event, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OR SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND/OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official. Speedway officials shall be empowered to permit reasonable and appropriate deviation from any of the specification herein or impose any further restrictions that in his/her opinion do not alter the minimum acceptable requirements. NO EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation of deviation of these rules is left to the discretion of speedway officials. Their decision is final.

305 Sprint Cars

Rules For The 305 Sprint Car Class

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305 Sprint Cars

CHASSIS

  1. All sprint car frames must be a sprint car design. Both torsion bar & coil over are allowed.
  2. No aluminum frames, no aluminum king pins, no aluminum kick bars and no aluminum bumpers.
  3. Roll cages must be a minimum of 1.375” diameter .095” thickness, seamless tubing.
  4. All racecars must have a front bumper, rear bumper and kick bars on both sides of the racecar, steel only.
  5. All racecars must have a racing fuel cell with bladder.

DRIVE-TRAIN

  1. All cars must have a minimum of (3) three wheel brakes. (Inboard & front brake)
  2. In & out box, sliders and shifter rear ends only. No transmissions or clutches.
  3. The drive line must be fully enclosed by a torque tube; torque tube must have a 3/8” inspection hole. A drive shaft loop or a drive shaft strap is mandatory.
  4. No rotating titanium components allowed over a 1.5 inch diameter.

ENGINE

  1. GM 305 V-8s only. Approved block numbers are 361979, 460779, 46077, 460778, 14010201, 14010203, 14088551, 14016381, 14016382, 14016383, 14094766, 355909, 14093627, 14101147, 10243878, 4715111, 10046164, 14102058, or the DART block pn.31151411.
  2. A maximum cubic inch of 316 will be permitted. Maximum stroke of 3.5 inches is allowed.
  3. Only flat top pistons with the valve reliefs are allowed.
  4. Only Iron or steel 48-pound or heavier cranks allowed. No added weights (except for balancing) will be allowed. Minimum 2.420 inch diameter main journals allowed.
  5. Only 5.7 steel connecting rods with a minimum 2.070 inch crank rod journal allowed. Oil pan may be removed for inspection.
  6. No variable cam timing. Only chain cam drives will be permitted.
  7. Any damper and water pump allowed.
  8. Only solid .842 diameter magnetic flat tappet lifters allowed.
  9. Cast iron cams with stock firing order (18436572) only.
  10. Only a straight wound spring with a flat damper, that conforms to the specifications will be permitted. PSI @seat 90-120#, @.500 lift 330-355#, Inst. Ht. 1.700 -1.820, Dia 1.262 +-.005, Wire dia. .193 +-.002, Free ht. 2.130 max. 1.950 min., 5 full coils +/_ 1/8th turn as measured from tail to tail.
  11. Only wet sump, stock mounted oil pump systems.
  12. Centered mounted rocker arms only. Stud girdles allowed.
  13. The maximum valve lift permitted is: (.510” int. .535” exh.) @zero lash @valve retainer. Only standard size and configuration, 7 degree retainers and keepers will be permitted.
  14. Maximum cam diameter journal size of 1.871 inches is allowed.
  15. Intake valve sizes allowed are stem size of 11/32’s of an inch with no undercut and 1.94 inch head. Exhaust valve sizes are 11/32’s and may be undercut to .315 inches with a 1.60 inch head size.
  16. No titanium or ceramics allowed.
  17. Only point type Magnetos, or Kettering style ignition, will be permitted. Only constant flow fuel injection will be permitted.
  18. Only the Brodix SPCH unaltered cylinder head with 70cc combustion chamber will be allowed. Speedway Motors part number 2353050 or equivalent. Engine must maintain a maximum compression ratio of 10.25 to 1.
  19. Any legal Badlands Motor Speedway 360 sprint car is allowed to participate in this class as long as they follow the 305 wing, tire and wheel, and weight rules and must install a flat washer with a maximum 1 1/8 inch non tapered hole installed at the top of the stack.

WEIGHT

  1. Car and driver must weigh a minimum of 1,550 pounds immediately after each race.
  2. Any one utilizing a lightened block will not be allowed to add weight.
  3. Any ballast must be securely bolted, and located between the front motor plate to 12” behind rear motor plate.

FUEL

  1. Only alcohol or ethanol will be permitted. No gasoline.
  2. No performance additives allowed.

SUSPENSION

  1. No adjustable (from cockpit) shocks or torsion Bars allowed.
  2. No external reservoir shocks allowed.
  3. Coil over suspension is allowed.

TIRES

  1. Right rear tire must be Hoosier Medium or Hoosier Hard. Any Left rear tire with a minimum durometer of 35 is permitted. Bleeders not permitted.
  2. No tire softeners allowed.

WHEELBASE

  1. Minimum 80” wheelbase.

WHEELS

  1. No plastic wheels allowed.
  2. No Carbon fiber wheels allowed.
  3. Beadlocks are required on right rear tire.

WING SPECIFICATIONS

Top Wing:

  1. Center foil maximum size of 25 square feet with a maximum width of 60 inches with a one-degree plus or minus tolerance.
  2. Center foil shall be fully sheathed in aluminum. Vent holes are strictly prohibited.
  3. No wicker bills or Gurney lips permitted on Center Foil, unless center foil is totally flat then a one-inch wickerbill is allowed.
  4. Other than the slider mechanism, no moving parts allowed on or in foil structure.
  5. The 12-inch section located at the rear of the Center Foil must not have the belly/curl are out of proportion with the rest of the Center Foil. The belly/curl arc must span the entire length of the Center Foil and appear to be a gradual arc with the deepest point no further back than 48 inches from the leading edge. As measured on a 12-inch straight edge, the belly at 6 inches from the rear of the Foil may not be deeper than ½ inch. There is zero tolerance on this ½ inch depth. It is suggested that the wing blue print specify 15/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the ½ inch specification. (This is ½ inch measurement ensures that the belly/curl are is gradual).
  6. The belly/curl arc must start at the radius of the Center Foil’s leading edge and shall not exceed a depth of 2 ½ inches. Center Foil thickness cannot exceed 9 inches. Center Foil top surface from side to side must remain flat. Center Foil must be one-piece construction. No split or bi-wings will be permitted. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings. Top wing must not extend beyond outside of rear tires.
  7. Two stationary foils or rudders will be allowed to run the entire length of the underneath portion of the top wing. Maximum height proportions are 1 inch at the front of the 3 inches at the rear. Nowhere shall the foil exceed 3 inches in height. The top wing cannot be cockpit/driver adjustable.

Front Wing:

  1. Center Foil maximum size of 6-square feet with a maximum width of 36 inches with a one degree plus or minus tolerance.
  2. Center Foil shall be fully sheathed in aluminum. No vent holes allowed.
  3. Wicker bills up to 1-inch are allowed on nose wing, flat or dished.
  4. Maximum distance from the Center Foil front edge to the front edge of the front tires may not exceed 6 inches.
  5. The Center Foil front edge must remain at least 1 inch behind the front edge of the front bumper. Center Foil top surface from side-to-side must remain flat.
  6. Center Foil must be one piece. No split or bi-wings will be allowed.
  7. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings.
  8. The Front Wing must not extend beyond outside of front tires. The Front Wing may not be cockpit or driver adjustable while the car is stationary or in motion.
  9. No moving parts allowed on or in foil structure/
  10. The 5” section located at the rear of the front foil must not have a bell/curl arc that is out of proportion with the rest of the front foil. As measured on a 5-inch straight edge, the belly at 2 1/2 inches from the rear of the foil may not be deeper than 3/8 inch. There is zero tolerance on this 3/8-inch depth. It is suggested that the wing blue print specify 11/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the 3/8-inch specification (This 3/8-inch measurement ensures that the belly/curl arc is gradual).
  11. The belly/curl arc must span the entire length of the front foil and appear to be a gradual arc with the deepest point, no further back than 12 inches from the leading edge. The belly/curl arc must start at the front foil’s leading edge and shall not exceed a depth of 2 inches. Top foil thickness cannot exceed 3.6 inches.
  12. No rudders or fins on Front Wings.

Side Board Panels:

  1. All side board panels must be within an eight-degree plus or minus tolerance and be square to center foil.
  2. Side panels may not be supported by braces whose section is not horizontal. All braces or supports shall be oriented thin edge to face the air stream. Only rectangular, round or oval metal braces not exceeding 1 inch in width may be used.
  3. No aero section side panel brace material allowed.
  4. No brace or support shall resemble a wicker bill or a split wing. Top Wing sideboards maximum size, 72 inches long and 30 inches tall. Panels must be of one-piece construction. Panels must be fabricated flat so as to have no turnouts or flaps made of more than 2 inches of material on the front of rear of panel and no more than 1 ¼ inches on the top or bottom. Front Wing side boards maximum size, 12 inches tall and 26 inches long with no more than one inch overhang from the center foil front edge to the side board front edge. Sideboards may have front, back, top and bottom turnouts of no more than ½ inch.

SAFETY

  1. Competition shoulder harness and lap belt must be a minimum of 3” wide. Submarine belt and arm restraints are mandatory. Metal to metal buckles are required on shoulder harness and lap belts. All belts are required not to be over 2 years old.
  2. Fire retardant racing suit is mandatory.
  3. Fire retardant racing gloves and shoes are mandatory.
  4. Fire retardant socks, underwear and hood are highly recommended.
  5. Neck brace is required.
  6. Roll cage set is mandatory or full contained seat with head rest.
  7. Helmets – SNELL SA2005, SA2010 or SA2015 required. Helmets must be worn at all times when driver is operating racecar.
  8. No transmitting or listening devices, except race receivers, allowed in the racecar.
  9. No electronic monitoring computer devices capable of storing or transmitting information, except tach, allowed on the racecar.
  10. Aluminum racing seat fastened to roll cage required so top of helmet has a minimum of 2” clearance to the top of the halo bar.

TRANSPONDER MOUNT LOCATION

  1. AMB-it Transponder must be mounted on the right front. May be mounted on either vertical bar in front of front axel. * – Remember the transponder will not read through metal and must be less than 2 feet from ground.

NOTE

  1. Any rules not covered here or any rules in question will be left up to the officials in charge. Their decision will be final.

GENERAL RULES

Track officials shall have responsibility for rules regulations enforcement at all events. At the discretion of track officials in charge, any competitor may be disqualified for rules violations, hazardous equipment or hazardous actions. All cars are subject to inspection at any time. Approval of vehicle by the inspector shall mean only that the vehicle is approved for participation in a competitive event and shall not be constructed in any way to mean that the inspected vehicle is guaranteed mechanically sound. Be it further declared that the inspector shall not be liable, for any losses or injuries resulting from the same. Any unsportsmanlike conduct by the drivers, owners and/or pit crews shall be grounds for disqualification. Drivers are responsible for the conduct and action of their crew members. No alcoholic beverages will be consumed by driver or crew prior to or while competing. No use of illegal drugs. The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these event, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OR SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND/OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official. Speedway officials shall be empowered to permit reasonable and appropriate deviation from any of the specification herein or impose any further restrictions that in his/her opinion do not alter the minimum acceptable requirements. NO EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation of deviation of these rules is left to the discretion of speedway officials. Their decision is final.

410-Sprint Cars

Rules For The 410 Sprint Car Class

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410-Sprint Cars

CHASSIS

Any sprint chassis is allowed, but it must pass any test prescribed by the safety inspectors. The safety inspectors have the right to deny any car from competition if they deem it is not safe for competition. No champ cars allowed. The roll cage must be a (4) post design. No elliptical tubing used on or as part of the mainframe structure. A drive shaft hoop or strap is mandatory. Wheelbase no less than 83” and no more than 90”. No additional anti-roll / weight transfer bars.

HOODS

All cars will be required to run a full sprint appearing hood. Hood must extend to the front torsion bar tubes or a similar location on coil over cars. The hoods may be a multiple piece design, but must appear to be (1) continuous piece. Rock guard and side panels will be allowed the same as last season. Hood and nose pieces may not extend above the frame and/or roll cage to create any additional aero effects.

BODY SIDE PANELS

Side panels may be installed according World of Outlaws rules. Minimum right side opening for outlaw chassis 10” X 21”.

ENGINES

Only two valves and one spark plug per cylinder allowed. No titanium crankshafts or rods will be allowed. There must be an inspection plug in the oil pan, either a #12 AN fitting or a one inch plug.
Maximum displacement of 410 Cubic Inch. Motors must conform to the corporate intent of Ford, GM, and Chrysler small blocks. No overhead cams, superchargers, or turbo chargers are allowed. No zoomie headers. (Spec. LS9 and LS7 GM engines will be allowed.)

ï 440CI ENGINE OPTION: Outlaw sprint competitors will be allowed to utilize the following sprint engine package which allows motors to reach a maximum displacement of 440 cubic inches, but will be restricted in the following forms:

–  4.165” Maximum bore

– 4.000” Maximum stroke (4.165″ bore x 4.000″ stroke = 436ci)

–  15 Degree minimum valve angle to deck angle in head

–  3.750” Maximum intake face height from deck to valve cover rail

–  2 5/8” Maximum injector stack diameter for at least 4 inches of the stack length

–  1 7/8 “ Maximum header size from head to collector

FUEL INJECTION

Maximum of 3” inside bore diameter measured on the fuel injector body at the butterfly. (See intake stack size for 440ci engine option.)

WEIGHT RULE

Minimum of 1,375 pounds with driver after the race. Any added weight must be mounted with at least two (2) 1/2-inch diameter grade (8) bolts, painted white and have car number painted on it. All bolt-on weight must be between front and rear axles and between top and bottom frame rails, and must remain on car during the entire event. Cars not meeting these specifications will be disqualified.

BRAKES

Steel, aluminum, carbon fiber, or titanium brake rotors allowed.

WHEELS

No dual wheels allowed. No carbon fiber wheels allowed. No plastic wheels allowed. Maximum right rear width is 18in. and maximum left rear is 15in. Must be steel or aluminum.

TIRES

Left Rear: Hoosier H12, H15, D12, or RC1
Right Rear: Hoosier 105×16.0-15 Medium or Hoosier 105×18.0-15 Hard. Fronts – Any

No tire softeners allowed. Tires must durometer within factory specifications.

FUEL TANKS/FUEL

All fuel tanks must have a bladder. Fuel tanks must be securely fastened. Any means of mounting the tank must meet the approval of the officials. Fuel cells cannot be altered or modified and must be one piece construction of cross-link polyethylene plastic. A (33) gallon fuel cell is strongly recommended. Tank used for qualifying must remain for all events. Methanol or Ethanol fuel only. No performance enhancing additives allowed.

DRAG LINKS

Drag links must utilize an approved tether fastened to the frame. Captured steel heim ends and 1” diameter steel construction with .058 sidewalls is suggested for drag links and tie rods.

WING SPECIFICATIONS

Top Wing:

  1. Center foil maximum size of 25 square feet with a maximum width of 60 inches with a one-degree plus or minus tolerance. Center foil must remain flat and maintain four 90 degree corners.
  2. Center foil shall be fully sheathed in aluminum. Vent holes or any modifications are strictly prohibited.
  3. A maximum two inch removable wicker bill on the rear top edge of the center foil and mounted 90 degrees to the foil is permitted.
  4. Other than the forward and backward slider mechanism, no moving parts allowed on or in foil structure.
  5. Center Foil thickness cannot exceed 9 inches. Center Foil top surface from side to side must remain flat. Center Foil must be one-piece construction. No split or bi-wings will be permitted. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings. Top wing must not extend beyond outside of rear tires.
  6. Foils or rudders will not be allowed anywhere.

Front Wing:

  1. Center Foil maximum size of 6-square feet with a maximum width of 36 inches with a one degree plus or minus tolerance.
  2. Center Foil shall be fully sheathed in aluminum. No vent holes allowed.
  3. Wicker bills up to 1-inch are allowed on nose wing, flat or dished.
  4. Maximum distance from the Center Foil front edge to the front edge of the front axle may not exceed 20 inches.
  5. The Center Foil front edge must remain at least 1 inch behind the front edge of the front bumper. Center Foil top surface from side-to-side must remain flat.
  6. Center Foil must be one piece. No split or bi-wings will be allowed.
  7. Wings must be fabricated of metal alloys only. No fiberglass, carbon fiber or other similar material may be used in the basic framework of the wings.
  8. The Front Wing must not extend beyond outside of front tires. The Front Wing may not be cockpit or driver adjustable while the car is stationary or in motion.
  9. No moving parts allowed on or in foil structure/
  10. The 5” section located at the rear of the front foil must not have a bell/curl arc that is out of proportion with the rest of the front foil. As measured on a 5-inch straight edge, the belly at 2 1/2 inches from the rear of the foil may not be deeper than 3/8 inch. There is zero tolerance on this 3/8-inch depth. It is suggested that the wing blue print specify 11/32-inch depth, so that if any deflection or movement of the wing occurs, the depth will not exceed the 3/8-inch specification (This 3/8-inch measurement ensures that the belly/curl arc is gradual).
  11. The belly/curl arc must span the entire length of the front foil and appear to be a gradual arc with the deepest point, no further back than 12 inches from the leading edge. The belly/curl arc must start at the front foil’s leading edge and shall not exceed a depth of 2 inches. Top foil thickness cannot exceed 3.6 inches.
  12. No rudders or fins on Front Wings.

Side Board Panels:
a) All braces or supports shall be oriented thin edge to face the air stream. Only rectangular, round or oval metal braces not exceeding 1 inch in width may be used. No adjustable bracing allowed.
b) No aero elliptical brace material permitted.
c) No brace or support shall resemble a wicker bill or a split wing.
d) Side boards must be mounted within 8 degrees of square to the center foil and parallel to each other. No kick-out allowed. FRONT
e) Front side boards maximum 12 inches tall and 26 inches long with no more than one inch overhang from the center foil front edge to the side board front edge.
f) Side boards may have front, back, top and bottom turnouts of no more than 1⁄2 inch.
TOP
g) Top wing side boards maximum size, 72 inches long and 30 inches tall. The top 2/3’s of each top
wing side panel shall consist of only 2 corners. Each corner shall be set at a 90° angle with no varia nce. This portion of the side panel’s leading edge cannot be behind the center foils leading edge.
h) Panels must be of one-piece construction.
i) Panels must be fabricated flat with no more than a two (2) inch turnout or flap on the front or rear of panel and no more than one and a quarter (1 1/4) inch on the top and bottom.

ADJUSTABLE DEVICES

Only one cockpit adjustable device allowed will be one top wing slider mechanism. Said slider mechanism is to be one dimensional and allow for forward and backward movement only.

BOLTS

No hollow or drilled out bolts allowed on the drag link or tie rod.

BUMPERS & NERF BARS

All rear bumpers and nerf bars must be steel and hollow. No weight of any kind added to or inside of bumpers or nerfbars. Minimum (1) inch in diameter. Minimum (.065) thickness. Rear bumpers must be on at all times during the race. No car will be allowed to compete without a rear bumper. Front bumper maximum length is (8) inches.

FRONT AXLES

Steel only. Minimum size (2” x .156) (2 1⁄4 x .120) (2 3/8 x .095)

FLOOR PAN

Steel or aluminum only.

CARBON FIBER

Except for brake rotors, no carbon fiber parts allowed in the suspension or drive line.

LISTENING DEVICE

The functioning RACEceiver is mandatory in all competition. Channel must be 454.000.

SAFETY

Seatbelts should have the five or six point configuration of attachment to the frame or roll cage. The shoulder belts should be attached about waist high behind the seat to the frame or roll cage. Arm restraints are also suggested. Speedway reserves the right to withdraw any car from competition that it deems to have an unsafe seat and/or poorly mounted seat belts.

DRIVER’S EQUIPMENT: The driver’s suit should be of multi-layered Nomex. Nomex underwear, socks and head sock are suggested. Driving gloves and racing shoes are required. No alterations. Speedway reserves the right to inspect any helmet for cracks or structural damage and reject if necessary.

HELMETS: SNELL SA2005, SA2010 or SA2015 required. Helmets must be worn at all times when driver is operating racecar.
CAR’S EQUIPMENT: Use a securely fastened steering wheel with a quick disconnect and removable steering wheel. No Aluminum roll cages, front axles, frames, rear bumpers or nerf bars. All roll cages must be higher than the driver’s helmet. Opening on left hand side of cockpit must be a minimum of (14) inches. No pop rivets or cotter keys to be used to fasten wings, bumpers or nerf bars to race car. You cannot race without a hood. If you lose a rear bumper you may continue the race unless the car is stopped. If a red occurs you must replace the bumper in the allotted time before you can restart. A triangular safety net is suggested on the right side of the roll cage. Metal fasteners are strongly suggested. Left side net is suggested. MISCELLANEOUS: Please use a neck collar. Knee pads or other devices to keep the knees from banging around on objects causing injuries are encouraged. Shoulder/helmet restraints are also encouraged. A padded head rest and roll cage padding around the cranial area is an important item. A type of Styrofoam or fiberglass insulation of (1) inch thick with an upholstery type covering is suggested. If you use armafax or foam rubber it should be considerably thicker.

TRANSPONDER MOUNT LOCATION:

AMB-it Transponder should be mounted on the right front. May be mounted on either vertical bar in front of front axle. *Remember the transponder will not read through metal and must be less than 2 feet from ground.

NOTE

Any rules not covered here or any rules in question will be left up to the officials in charge. Their decision will be final.

GENERAL RULES

Track officials shall have responsibility for rules regulations enforcement at all events. At the discretion of track officials in charge, any competitor may be disqualified for rule violations, hazardous equipment or hazardous actions. All cars are subject to inspection at any time. Approval of vehicle by the inspector shall mean only that the vehicle is approved for participation in a competitive event and shall not be constructed in any way to mean that the inspected vehicle is guaranteed mechanically sound. Be it further declared that the inspector shall not be liable, for any losses or injuries resulting from the same. Any unsportsmanlike conduct by the drivers, owners and/or pit crews shall be grounds for disqualification. Drivers are responsible for the conduct and action of their crew members. No alcoholic beverages will be consumed by driver or crew prior to or while competing. No use of illegal drugs. The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OR SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND/OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official. Speedway officials shall be empowered to permit reasonable and appropriate deviation from any of the specification herein or impose any further restrictions that in his/her opinion do not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation of deviation of these rules is left to the discretion of speedway officials. Their decision is final.

USRA Hobby Stocks, USRA B-Mods, and USRA Stock Cars
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USRA Hobby Stocks, USRA B-Mods, and USRA Stock Cars