2024 Super Trucks

Huntsville Speedway Star Super Truck Rules 2024
Warning! If you attempt to abuse the rules set forth
by the Star Super Truck Division for the 2024 season,
Huntsville Speedway will have no choice but to refuse
your request for participating. Just because the rules
don’t say you can’t, does not mean that you can!

Safety: All safety apparel must be worn at all times while on the track.

1. All drivers must use a Snell approved helmet. A full face is suggested.
   Goggles or face shield required.
2. Head & neck restraint is recommended. A Hans or Hans type device is
   recommended.
3. Complete fire suit, gloves and shoes are mandatory. Must be in good shape
   with no holes etc.
4. Driver’s window net must have a quick release with latch at top left (A post).
   Release should be painted a fluorescent color or have a orange tether cord/pull
   tab i.e. parachute cord in a minimum of 5” in length Window net must be secured
   during any time on the track and when latched must fit tight.
5. All roll bars within drivers reach must be padded with fire resistant material.
6. Must have a quick release steering wheel with a 2” fire proof padding in center.
7. A 5 point safety harness with a crotch belt is required. Must be no older than 5
   years old and in good condition.
   Harness must be mounted according to manufacturer specs. (Over the shoulders
   and not against the neck).
8. A minimum of a 2 lb fully charged fire extinguisher is mandatory and mounted
   within drivers reach and must be secured in an all steel bracket. An on board fire
   system is highly recommended.
9. A battery disconnect switch is mandatory and must be easily accessible to the
   safety crew. Must be clearly marked “ON” and “OFF”, recommended to be
   mounted on the rear deck right behind driver and readable by safety crew from
   outside the truck.
10. Minimum of one 360 degree drive shaft loop is mandatory and must be
    approved by HS officials. Two safety loops is recommended to increase safety.
11. All lead and drive shaft must be painted white with truck # on it. Lead must
    have at least one ½” bolt with a lock nut (preferably two bolts if not in a lead box)
    and no smaller than 5 lbs. No lead allowed inside the driver’s compartment.
12. NO carbon fiber, titanium, magnesium or tungsten allowed anywhere in or on
    truck. Carbon fiber helmets and neck restraints are allowed.
13. Racing type seats are required. No fiberglass seats allowed.
14. Seats must be mounted to roll cage.

Roll Cage

1. Roll cages must be built of 1 ¾”o.d. round tubing by .095 gauge. All cages
   must be approved by Tech official.
2. Minimum of 3 door bars (4 recommended) on the left side plated with at least
   1/6th steel.
   Fuel System
3. Fuel cell must not be larger than 22 gallons, mounted between frame rails and
   in a steel container. It must be
   mounted with square tubing at the top with a minimum of 4 1/8th by 1” steel
   straps surrounding the entire fuel cell.
   1” square tubing is recommended around fuel cell.
4. Fuel cell must have a protection bar of 1 ¾” o.d. round tubing by .095 gauge at
   least ½” lower than fuel cell and the width of fuel cell can.
5. Fuel cell must be at least 7” above ground at ride height.
6. Fuel line must go from fuel cell to carburetor and shall not run inside of driver’s
   compartment. Steel braided fuel lines are highly recommended.
7. No electric fuel pumps allowed except on LS engines. LS engines must be
   equipped with a back up fuel shut off controlled by oil pressure.
   Traction Control
8. ABSOLUTELY NO ELECTRICAL or MECHANICAL TRACTION CONTROL
   OF ANY TYPE. Anyone caught with a electrical or mechanical traction control
   device i.e. Davis Traction Control of any type will be fined no less than $1,000.00
   and cannot race with STAR until fine is paid in full.
   Engine/ Weight:
9. Only cast iron V8 engine blocks permitted, including LS engines.
10. No aluminum engine blocks allowed.
11. Minimum 2850 lbs, 2875 lbs for Aluminium Transmission(go to transmissions)
    with 1 lb per lap burn off allowed. All green and yellow laps will be counted after
    first green flag attempt.
12. Maximum left side weight is 56% (go to shocks for 57% rule).
13. No weight shifting devices, lead pellets or liquid weights allowed.
14. Dislodged weight cannot be added after race. Any truck that loses weight will
    result in a fee of $10 per pound penalty to be paid prior to receiving the lost
    weight back or the penalty will be deducted from their prize money.
    Body panels that are lost during the race can be added back to truck upon
    approval of STAR Officials.
15. The Driver must claim left side percentage on windshield before and after
    Tech Inspection and remain on windshield for the duration of the race. Any left
    side weight over, after the race with fuel burnoff, that was claimed by the Driver
    during the Tech Inspection will forfeit money, points and a possible fine to be
    paid before that truck or driver will be allowed to race with STAR again.

Bodies/ Interiors:
Take pride in what you have invested your money, time, blood, sweat and tears
into!

1. Bodies must be neat in appearance.
2. Body must maintain original configuration, size and shape and be approved by
   STAR Officials.
3. Bodies will be stock appearing fiberglass, PVC or aluminum replicas with a
   minimum clearance of 4” from the ground without driver, and all aluminum body
   panels must be no thinner than .040”.
4. Minimum of 28” allowed between the top crossbar at shoulder height behind
   driver’s seat to the center of the rear end while at ride height.
5. Minimum roof height is 55 ½” measured in the center of roof 10” back from top
   of windshield. Maximum roof height at the rear of roof is 56”.
6. Minimum rear deck height is 36” measured where the spoiler meets the deck.
7. Rear deck must be completely covering the rear of body. Must have an
   inspection opening of no less than 24” wide by 30” deep with positive fasteners.
8. Front and rear window openings must be covered with 1/8” thick clear
   polycarbonate over the entire opening. Clear polycarbonate side vents are
   acceptable and cannot exceed 9” in height.
9. Front windshield must have a support bracket or brackets. All body supports
   must remain inside of the body structure.
10. Hoods must remain flat as possible with a maximum opening of 2 ½”x 20”
    with back edge of opening either meeting the windshield or a maximum of 1”
    from it. Fresh air deflector is permitted. Deflector must be aluminum and no
    larger than 2” down and 2” in by 20” wide with square bends. End caps can be no
    larger than 2”x 2”.
11. Rear spoilers are mandatory with a maximum width of 60” and a maximum
    height of 6”. Spoilers can be made of 1/8” aluminum or 1/8” clear polycarbonate.
    No forward rudders or mounting brackets allowed.
12. Hood must have at least 4 positive fasteners or 2 positive fasteners on the
    front with 2 rear hinges.
13. Interiors must be complete and shield the driver from ground, engine
    compartment and fuel cell area.
14. Rear view mirror is allowed inside of truck only.
    Oiling and Cooling System:
15. Oiling system must be wet sump system.
16. Only one block mounted screw on OEM type oil filter is permitted.
17. Only block mounted belt driven water pumps allowed. Manual and Electric
    fans permitted. Fan shroud may not
    extend more than 2” past fan blades. Aluminum radiator permitted and must be
    mounted in front of engine.
18. No antifreeze! No additives with antifreeze like substances. If caught, $250
    fine, no prize money or points.
    Carburetor/ Fuel:

1. Any Holley 650 cfm 4 barrel or smaller is allowed, 2 barrels included. No
   electronic fuel injection permitted.
2. Only one Carburetor per engine permitted.
3. Only one aluminum spacer permitted between carburetor and intake and
   cannot exceed 1” in height with one gasket per side not to exceed .070 thick.
4. Carburetor must have 2 return springs. Throttle stop is recommended.
   Huntsville Speedway ask that all STAR truck drivers support the speedway by
   purchasing their race fuel from the track.
   Air Cleaner:
5. Air cleaner must be on truck while the truck is on the track. Jam nut
   recommended.
6. K&N filter is allowed 12“-20” in diameter maximum 5” in height.
7. Cowl induction, air ducts or baffles are not permitted on or leading to the air
   cleaner.
8. No sheet metal heat shields or any other type of hot air deflection device or air
   flow deflection device will be allowed past the back side of the radiator or in the
   engine compartment.
   Exhaust:
9. Any type of tubular header permitted and must have a single flange.
10. Exhaust must extend beyond the driver and exit out the right side.
11. True visible mufflers are suggested and exhaust system sound must not
    exceed 100 decibels at 100 feet.
    Ignition:
12. OEM and aftermarket replacement distributors permitted. Only MSD 6 series
    ignition systems are permitted.
13. NO aftermarket Crankshaft Triggering systems or magneto distributors
    allowed. LS engines allowed to run OEM style crankshaft sensor.
14. Only one battery permitted. Must be securely mounted outside cockpit and
    behind driver. Dry Cell battery is highly recommended for everyone’s safety.
    Transmission:
15. 3 or 4 speed manual cast iron transmissions with OEM gears and bearings
    only permitted. No low friction
    bearings or gears allowed. All Transmissions must have all forward and reverse
    gears working.
16. Stock OEM Aluminium housing Transmission permitted. Must have OEM
    casting numbers. No straight cut gears allowed. Must have 2 forward and one
    reverse working gears. Aluminium Transmission must add 25 lbs.
17. Automatic transmissions permitted and may run a drive coupler or a dummy
    converter and must be a OEM GM turbo 350, Ford C4 or C6, or Dodge 904 or
    727 automatic transmission with all forward and reverse gears working. No low
    friction bearings or gears allowed.

Clutch:

1. Minimum 7 ¼” clutch assembly is permitted.
2. Hydraulic throw out bearings are permitted.
3. No reverse mount starters allowed.
4. No aluminum, titanium, tungsten or magnesium bell housing, clutch, pressure
   plate or flywheel parts allowed.
5. Quarter Master or Lakewood type steel bell housing permitted.
6. All trucks must run a starter motor and it must crank the engine over on its own
   power, before and after the race.
   Driveshaft:
7. Drive shafts must be of similar design to standard OEM production type and
   must be made of steel.

Rear Ends:

1. Original 10 bolt GM:
   A. Must be all steel with no aluminum parts except for rotor hats.
   B. Gears 7.5 or 7 inch
   C. Any ring and pinion ratio permitted. Steel mini spools, positive track units and
   locker type rear ends permitted.
2. 9 inch Ford:
   A. Must be all steel with no aluminum parts except for axle caps and rotor hats.
   B. Steel mini spools or steel full spool (8lbs Minimum) permitted.
   Positive track units and locker type rear ends permitted.
   Both Ford or GM must bolt in place utilizing all 4 rear links. Trailing arms must
   mount in stock location.
   Top 2 links can be fully adjustable for pinion angle or may use modified original
   stock arms. Top links must be steel and be within 1” of original OEM length. No
   aluminum trailing arms or aluminum heim joints allowed. Lower trailing arms can
   be fabricated or replaced with steel heim joint and steel swedge tubes but be
   within 1” of original OEM length and mount in original location. Any steel, rubber
   or polypropylene bushing allowed on trailing arms.
   NO Quick Change Rear Ends or 3rd Links Allowed!
   NO Panhard Bar/ Tract Bar or J-bar allowed.
   Floater rear ends are allowed.
   Frame:
3. GM metric frame only may be used. 1978-87 Chevrolet Malibu, Monte Carlo,
   Pontiac Grand Prix, Oldsmobile Cutlass or Buick Regal.
4. Must maintain the original 108” wheelbase and 4” ride height frame to ground
   with driver.
5. Right side to left side ride height maximum allowable difference is 1” with
   driver.

4. Frame may be fabricated 6” forward from the centerline of rear axle to rear of
   truck and from the front sway bar forward.
5. Holes may not be cut or drilled to lighten frame.
6. Frame may be X’ed but not narrowed.
7. Cross member must be stock and in stock location, it may be notched for oil
   pan clearance only and must be boxed in with 1/8” steel.
8. Engine must be centered between frame rails, 1” tolerance.
9. Cross member cannot be notched or dimpled for fuel pump clearance on GM
   engines.
10. Engine set back will be measured from center of rear end housing to back of
    engine block where bellhousing meets and must be no less than 93” for GM,
    Ford, and Dodge or a weight penalty of 25 lbs per inch will be added to total
    weight. Maximum setback allowed is 3” which will incur an additional 75 lb.
    penalty added to total weight.
    Suspension:
11. Bearings and heavy duty steel aftermarket hubs and rotors are highly
    recommended. No steel sleeves permitted over spindle.
12. Only stock OEM GM small and large heavy duty spindles (i.e. Impala, Truck
    etc.) allowed and must mount in stock location. No offset, dropped, aftermarket,
    Camaro or Pinto spindles allowed. Lower control arms cannot be shortened or
    lengthened.
13. Aftermarket tubular or swedge tube type upper A arms with any ball joint is
    permitted. Tubular or heavy duty sway bars are allowed. No splined sway bars
    permitted. Coil springs may be replaced but must mount in OEM stock locations
    on lower control arms and center of the rear axle. Coil spring rubber inserts are
    permitted.
14. No leaf springs or torsion bars are permitted.
15. Rear sway bar is permitted but must be OEM stock bar. No heim joints
    permitted on rear sway bar. Must use
    stock type bushings.
    Shocks:
16. Only one shock permitted per wheel.
17. No aluminum shocks allowed.
18. Steel bodied single adjustable shocks, rebound only, and may have multiple
    rebound adjustments are allowed and must run 56% left side weight. Non
    adjustable steel bodied shocks are allowed. Any trucks running non adjustable
    steel bodied shocks will be given one percent left side weight advantage equaling
    57 %.
19. No compression adjustable shock allowed.
20. Double adjustable shocks are not allowed.
21. No canister type shocks allowed.
22. Rebuildable with Schrader valve non adjustable shocks are allowed and will be
    given one percent left side weight advantage equaling 57%.

8. POST RACE SHOCK BUY OUT – $250.00 per shock claim rule. You must
   finish directly behind the truck to use buy out rule. Buyer must buy all four shocks
   at time of protest. All four shocks must be delivered to tech official undamaged
   and fully functional. Any person that does not submit to the claim rule will be
   disqualified. No Points, No Money. Also, they will not be allowed to bring those
   shocks back at any time. Driver claiming shocks must have competed with
   STARs last two scheduled events and finished on the lead lap. IF YOU DON’T
   WANT YOUR SHOCKS CLAIMED DO NOT EXCEED THE RULES.
9. Coil overs, shocks with coil overs, or shocks converted to a coil over are not
   allowed.
10. Rear shocks must mount in stock location on rear axle.
11. No internal or external bump stops, frame stops or suspension limiters of any
    kind allowed.
    Steering:
12. Only a GM style steering gear box allowed and may not be moved from factory
    location.
13. May use up to 3 universal joints as well as one heim joint on steering shaft.
14. No rack and pinion steering or Nascar light weight gear boxes allowed.
15. After market or OEM power steering kits allowed.
16. Steering quickeners are allowed.
17. Collapsible steering shaft is highly recommended.
    Brakes:
18. Front brakes must be original GM or OEM appearing single piston steel
    calipers only. Heavy duty hubs or rotors must bolt directly to GM spindle. No
    adapters permitted.
19. Rear disc brakes are allowed and must be original GM or OEM appearing
    single piston steel caliper only.
20. No drilled, slotted or scalloped rotors allowed.
21. After market brake pedal allowed with double reservoir master cylinder.
22. No aluminum brake rotors, drums or calipers allowed on front or rear.
23. Aluminum rotor hats are allowed on rear only.
24. Brakes must function on all 4 wheels at all times.
    Tires and Wheels:
25. American Racer KK704.
26. Front and rear tread width is 63 ¼” maximum measured from center of left tire
    to center of right tire.
27. Steel 15” racing wheels with a maximum width of 8” with a maximum offset
    difference of 2” from right side to left side.
28. Beadlocks, air bleeders or popoffs are not permitted of any kind.
29. Hubs must have 5/8” wheel studs.
30. Wheel weights are not permitted at all.

Qualifying:

1. The driver that qualifies the truck must start the race in the same truck. If
   another driver races the truck he/she must start in the rear of field.
2. You must start the race on the same tires that the truck qualified on.
3. Minimum qualifying weight is 2850 lbs.
   Cone Rule
4. The cone will be used on restarts even with 5 laps or less remaining. Driver
   must commit to the outside or inside before he/she reaches the cone.
   Inspection:
5. All trucks must go through tech inspection before allowed on the track to race.
6. Tech official has the authority to inspect any truck after it has entered pit area.
   Inspection may take place before, during and after event.
7. Tech official’s decision is final.
8. Tech official may limit admittance in the inspection area at all times to anyone.