Mini Stock Rules

Rulebook Disclaimer

The rules and regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements. These rules govern all events, and by participating in these events, all participants are deemed to have accepted and complied with them.

Franklin County Speedway Tech Officials are empowered to permit deviations from these specifications or impose additional restrictions to keep competition fair and safe. Any interpretation or deviation of these rules is at the discretion of Franklin County Speedway Tech Officials, and their decision is final.

Division Intent & FWD Participation

The Mini Stock division is designed primarily for rear-wheel-drive (RWD) cars, such as Mustangs and similar 4-cylinder RWD vehicles.

Front-wheel-drive (FWD) cars are only permitted to compete in the Mini Stock division during events where the Super 4-Bangers division (formerly Outlaw 4) is not competing. The Super 4-Bangers division is intended to be scheduled at every event. Under normal circumstances, there should be no need for FWD cars to race in the Mini Stock division.

FWD rules remain in this rulebook strictly as a contingency for future situations where the Super 4-Bangers division may not be on the event schedule.

Drivers

  • Any driver under 18 years old must have officials’ approval and a parent/guardian consent form completed before going on track.
  • Drivers may have experience from any other level of racing and still be allowed to participate.

Competing Models

  • Any 1960 or later model with:
    • Maximum wheelbase of 102″ for RWD
    • Maximum wheelbase of 107″ for FWD
  • Front- or rear-wheel-drive car or truck only.
  • No all-wheel-drive vehicles.
  • No two-seaters.
  • No convertibles.

Chassis and Roll Cage

  • Tech has the authority to disallow any car with compromised structural integrity or protruding parts that may be dangerous to competitors.
  • Any chassis used must have come with a 4-cylinder engine option.
  • Roll cage:
    • Complete 6-point center section with rear down bars.
    • Minimum 1.5″ diameter tubing.
    • Minimum .090″ wall thickness.
    • No exhaust tubing or crimped exhaust pipe bends in main cage.
  • Main 4 points of the roll cage must be welded to the frame rail or rocker panel.
    • If welded to the floorboard, it must be welded to a 6″ x 6″ metal plate.
    • Plates must be located no more than 6″ from the factory rocker panel.
  • No offset roll cages allowed.
  • Door bars:
    • Driver’s side: minimum 4 door bars with 1/8″ steel plate welded to the outside of the roll bars.
    • Passenger side: minimum 3 door bars.
  • All perimeter bars and bumper bars must have safe, reasonably rounded ends to prevent puncturing other cars, doors, tires, fuel cells, etc.
  • No push bars may extend outside the front bumper cover.
  • All bars within the driver’s reach must be padded.
  • All chassis suspension mounting points must remain in stock OEM locations. No exceptions.
    • All left-to-right, height, and “X” measurements must be within 1/4″ of factory specifications.
  • Rocker panels may be removed and replaced with tubing, provided the front and rear of the tubing are sealed.
  • All frames must be stock.
    • Unibody frames may be tied together end-to-end, halfway max on frame rails.
  • X-bracing allowed.
    • Maximum tubing size: 2″ x 3″.
  • Front firewall, floorboard, and all suspension points must remain in factory locations. No modifying for any reason.
    • If the floorboard has rusted or broken, it may be replaced on the passenger side and repaired on the driver’s side.
  • Must have full front and rear firewalls with no holes, completely sealed.
    • 22-gauge steel minimum for patched sections.
    • No combustible material allowed to fill holes.
  • Must have factory floor pan from the vertical section of the front firewall above the transmission tunnel behind the motor to the front mount for the back seat.
  • Inner structures of fenders, wheel wells, strut towers, and trunk floor may be removed.
  • Frame may be notched for oil filter or fuel pump clearance.
  • Tube chassis allowed.
    • Additional weight may be added as needed to equalize competition.

Suspension

  • Stock OEM-style suspension that originally came on the car.
  • Stock chassis cars:
    • May run tubular lower A-frames.
    • May add upper A-frames to cars that came with struts.
  • Front control arms may be interchanged within the same make as long as both sides are the same length.
  • Lower control arms may not be lengthened or shortened on any make.
  • Stock-style upper control arms may be adjustable for camber/caster adjustment only.
  • Any bushing allowed.
  • Maximum track width: 75″.
    • Measured from outside edge of tire to outside edge of tire.
  • May use any type/arrangement of wheel spacers with a maximum width of 1″ per wheel to meet track width.
  • Wheelbase must be within ±1″ of stock factory length for the car model claimed.
    • Left and right sides must be within 1″ of each other in length.
  • Strut rods on lower control arms (such as Pinto and Toyota) may be adjustable in length but must retain stock mounting points.
  • Sway bars:
    • OEM or direct-fit aftermarket only.
    • No splined-type sway bars.
    • Maximum diameter: 1 5/16″ or 33mm.
    • Mounting optional.
    • End link design optional.
    • May be adjustable on both ends.
  • Heim joints:
    • Allowed on sway bar.
    • Allowed in place of tie rods for bump steer correction.
  • Any upper strut plate/connection may be used in place of strut tower.
  • Lemans bar between strut towers allowed.
  • Any front caster/camber settings allowed.
  • Adjustable rear shackles and slider blocks allowed on leaf spring cars.
  • Front eye of leaf spring must remain in stock location.
  • Rear panhard bars:
    • Allowed only on cars that came stock with them.
    • May be adjustable from under the car only.
    • Must use a positive bolt pattern (no screw jacks).
  • Aftermarket upper and lower rear trailing arms allowed.
    • Lower trailing arms must be factory length.
  • Solid engine and transmission mounts allowed.
  • Spindles and rotors must be OEM but may be interchanged within different year models or versions of the same chassis.
    • One single piston aftermarket caliper allowed in place of OEM caliper.
  • No aftermarket spindles.
    • Spindles may be strengthened.
  • Drum brakes may be interchanged with disc brakes.
  • Brake adjusters, flow control, and metering valves allowed but:
    • Must be out of reach of the driver.
    • May not be used during the race.
  • Single or double master cylinders allowed.
    • Aftermarket pedals allowed and may be relocated.
  • Steering box and rack may be interchanged among same make.
  • Aftermarket power steering pump allowed.
  • Brake air ducts allowed.
    • Must be directed towards rotor/caliper and not into the engine compartment.
  • Brake hats allowed.
  • Drilling rotors for cooling allowed.
  • Steering quickener allowed.
  • Quick-release steering wheel highly recommended.

Bodies

  • Any stock or aftermarket body allowed, including straight-sided dirt, fiberglass, aluminum, or steel.
    • Open-wheel type must submit photos for approval and, if approved, will be allowed for one race maximum.
  • Full windshield required.
    • Rear and rear side glass optional.
    • No door glass allowed.
    • Windshield must be Lexan or laminated safety glass.
    • No plexiglass.
  • Two vertical braces at least 1″ wide x 1/8″ thick required on windshield.
  • Side view and rear-view mirrors allowed.
  • Side vents for driver cooling allowed.
  • Roof escape flaps as required by Bowman Gray are allowed.
  • Roof must maintain a minimum height of 48″ measured 10″ back from the center of the windshield.
  • All doors must be bolted, welded, or riveted shut.
  • All hoods must be sealed to the fenders, cowl, or windshield with no more than a 1/2″ gap.
  • No hood scoops, holes in the hood, or anything else funneling air to the carburetor.
  • At least 4 positive fasteners must be used to secure hood and trunk.
    • OEM or fabricated hinges may account for 2 of the 4 total.
  • Rear spoilers:
    • Maximum 5″ tall and 54″ wide.
    • Highest point of spoiler must be at least 10″ lower than the highest point on the roof.
    • Spoilers may need to be shortened or removed to meet the 10″ rule.
    • Must be mounted at the back of the trunk area near the tail section.

Shocks, Springs, and Struts

  • One steel-bodied shock or strut per wheel.
    • At least one end must be mounted in a factory location.
  • Aftermarket racing shocks allowed.
    • Heim joint ends allowed.
  • No aluminum-bodied shocks allowed.
  • No revalveable or Schrader valve-type shocks with external reservoir allowed.
  • Strut-type shocks may be adjustable.
  • Replaceable cartridge-style struts allowed only if available from factory and must be removable for inspection.
  • Any aftermarket coil spring allowed.
    • Rate and dimensions optional.
    • At least one end of the spring must be in OEM location.
  • No bump stops or bump springs allowed.

Engine Location and Types

  • Engine must be installed in stock location.
  • There must be no less than 1/2″ between the back of the cylinder head and the vertical plane of the stock firewall.
    • No beating firewall back at this location.
  • All engines must use stock OEM parts except where specifically allowed in these rules.
  • 4-cylinder piston engines only.
    • No rotary engines.
  • Engine and chassis must remain in the same manufacturer line:
    • Example: any Ford engine in a Ford chassis, but no Toyota engine in a Ford chassis.
  • No turbochargers or superchargers allowed.

Transmission, Flywheels, and Clutches

Automatic transmissions

  • Automatic or manual transmissions allowed.
  • All gears must function from the driver’s compartment.
  • Manual shift kits allowed.
  • Reverse shift patterns allowed.
  • Internal modifications for durability only.
  • No trick or lightweight internal parts.
  • Torque converter:
    • Must be stock OEM size.
    • Must be factory OEM stall speed.
    • No aftermarket high-performance converters.
    • No stall or hollow converters.
  • No valve or any mechanism to transfer transmission pressure allowed.
  • Neutral safety switch must be functional at all times.
  • Modified transmission pan allowed.
  • Transmission cooler size and placement optional.
    • Cooling lines must have no more than 12″ of high-pressure rubber hose.
  • Aftermarket flex plate allowed.

Manual transmissions

  • All gears must function from driver’s compartment.
  • 3-, 4-, or 5-speed transmissions permitted.
  • Aluminum flywheels permitted.
  • Any stock-type flywheel and pressure plate combination allowed with a minimum total weight of 19 lbs, including:
    • Flywheel
    • Clutch disc
    • Pressure plate
    • Bolts
  • No aftermarket high-performance clutch packs (10,000 RPM, RAM, Centerforce, etc.).
  • Reinforcement in area of floorboard for safety is required.
  • No aftermarket race transmissions — must be factory standard production only.
  • No lightening of internal rotating components.
  • Stock-type springless clutch disc allowed.

Driveshafts

  • Standard one-piece steel driveshaft only.
    • Minimum diameter: 2″.
  • Must be painted white with car number on it.
  • Front and rear driveshaft safety loops are mandatory.

Rearends

  • Any car or truck rearend allowed.
    • Interchanging allowed within the same make.
  • Mounts on interchanged rearends must match stock rearend locations to exact OEM measurements.
  • 7″, 8″, or 9″ Ford rearends allowed.
  • Any differential allowed:
    • Open, welded, full spool, mini spool, locker, limited slip, or helical gear types.
  • Quick change rearends allowed.
  • Any gear ratio allowed.
  • No cambered rearends:
    • Maximum deviation ±0.4° on RWD cars.
  • FWD rear suspension:
    • Cars running OEM rear control arms with all factory mounting points may have open rear camber (no side-to-side deviation rule).
    • FWD cars with aftermarket rear control arms must be within 3° of rear camber side to side.
  • Any aftermarket axle allowed.

Engines – General

Block

  • Must be stock OEM production block.
  • No aftermarket blocks allowed.
  • EFI engines: block must match declared engine model.
  • No coating, polishing, or machine work allowed except what is specifically listed here.
  • No machining to block for aftermarket rod clearance.
  • Blocks cannot be offset bored but may be sleeved using original bore centerline.
  • Stock OEM-type rod, camshaft, and crankshaft bearings required.
  • No maximum overbore.
  • Blocks may be debored but cannot weigh below factory lb/cc.
  • Aftermarket pulleys and water pumps allowed.
  • Crankcase evacuation systems to headers allowed.
  • Aftermarket oil pan allowed.

Crankshafts

  • Must be stock OEM cast or steel crankshaft.
    • No aftermarket cranks such as Scat, Lunati, etc.
  • EFI engines: crankshaft must match declared engine model.
  • Stock OEM stroke of crankshaft being used must be maintained within +/-.010″.
  • No lightening or knife-edging of throws or counterweights.
  • Polishing may be done between #4 rod journal and #5 main journal for crack detection and stress reduction only, not to lighten.
  • Engine balancing allowed.
    • Must be done in standard production manner.
  • Stud girdle kit allowed on main bearings.
  • Crankshafts may be interchanged among blocks within the same make with no machining needed.
    • Direct fit applications only on carbureted engines.
  • Engine CC must be posted on hood and must be correct for your bore.
    • Engines will be P&G tested.

Connecting Rods

  • Any steel aftermarket or factory rod allowed.
  • Maximum rod length:
    • Ford: 5.7″
    • Toyota 3TC: 5.2″
    • All others: factory length rods only.
  • Stock OEM rods may be polished.
  • No hollow aftermarket rods allowed.
  • Toyotas and Hondas may use H-beam rods if no block machining is required.
  • Minimum 1.950″ diameter rod journal for Fords.
  • Any rod bolt allowed.

Pistons and Rings

  • Any flat-top piston with any number of ring lands allowed.
  • Must have zero deck height.
  • Gas porting in ring lands only.
  • Any steel wrist pin allowed.
    • No titanium pins.
  • Any OEM dome piston engine may run any dome piston.
    • The flat part of the dome may extend .010″ above deck height.
  • Any style rings allowed.
    • Minimum of 2 rings per piston.

Bearings, Fasteners, and Gaskets

  • All engine bearings must be stock OEM-type sleeve bearings.
    • No roller bearings.
  • No titanium fasteners allowed.
  • Any other fastener allowed.
  • Head and main bearing studs allowed.
  • Any brand gaskets allowed.
    • No o-ring style sealing allowed in place of a head gasket.

Cylinder Head

  • Must be stock OEM casting.
  • No aftermarket heads allowed.
  • EFI engines: head must match declared engine model.
    • Exception: Honda B20 may run B18 head and fuel system at 2300 lbs.
  • Heads may be interchanged on blocks within the same make only in direct-fit applications.
    • Cross-breeding within same make allowed on carbureted engines only.
    • Example: 2300 head allowed on 2000 block.
  • Angle milling allowed.
  • Carbureted engines: maximum two valves per cylinder.
  • Stainless steel OEM-configuration valves and swirl-type valves allowed.
  • Valve stems may not be smaller diameter than stock for head being used without weight penalty.
    • If valve stems are smaller than stock, competitor must reduce left-side percentage from 55% to 53%.
  • No titanium valves.
  • Valves may be back-cut 30° maximum.
  • Valve stems may not be canted in head.
  • No interior de-burring, polishing, extrude honing, or acid porting allowed.
  • Ports must remain stock as-cast from OEM.
  • Lifter bore may be machined for solid adjusters.
  • Valves must retain stock diameter head.
  • Any steel or stainless retainer/keeper/shims allowed.
  • Any type of valve job allowed; valve job angles optional.
  • Any valve spring combination or design allowed.
  • Reinforcement on cam boss allowed.
  • Late model stock-style bowl cut allowed:
    • One angle cut under seat.
    • 1″ maximum depth of cut.
    • Cut must not touch valve guide.
    • Cut must be in line with valve guide.
    • May not be hand-ground.
  • No blending of bowl cut to ports or rounding edges created by bowl cut.
  • No roller cam followers allowed except on GM 151 engines.
  • Cam button allowed.

Camshafts

  • Any aftermarket hydraulic or solid cam allowed.
    • Cam lift optional with no penalty.
  • Adjustable cam gear allowed.
  • Stock OEM steel or double roller timing chain and gears with hex adjustment allowed.
  • Anti pump-up hydraulic lifters allowed.
  • No lightweight pushrods.
  • Only stock OEM rocker arms and lifters that were factory OEM for the head being used.
  • Oil return screens allowed.
  • Lifter valley baffles allowed.
  • Lifters must be stock size for head being used.
  • Roller rocker arms allowed on GM engines and EFI engines with factory roller rockers.

Intakes

  • Stock OEM factory intake with factory part number allowed.
  • Fuel injection intake allowed.
  • Aftermarket intake manifolds allowed.
  • No porting, polishing, coating, dipping, port matching, etc.
  • Intake may only be modified to accept carburetors.
    • No other modifications allowed.
  • Carburetor adapter plate must not protrude down into plenum.
  • All parts must be mass-produced items available as stock production or over-the-counter parts.
    • No special test or marine-type parts.
  • Only North American–distributed intakes on domestic engines.
    • Asian brands allowed on Japanese makes only.
  • B20 may run B18 intake (modification to mounting holes for fitment only).

EFI Fuel Systems

  • Only engines without a carbureted option may use EFI systems.
  • OEM throttle body for declared engine model required.
  • No machining or altering of throttle body.
  • OEM unaltered fuel rail for declared engine model required.
  • OEM unaltered size fuel injectors for declared engine model required.

Carburetors, Spacers, and Adapters

  • Allowed carburetors:
    • Holley 350 cfm #0-7448 or #0-80787-1
    • Holley 500 cfm #0-4412 or #0-80583-1
  • Choke hardware may be removed.
  • Choke horns must remain on carburetor. No exceptions.
  • All vacuum ports must be plugged.
  • Up to two gaskets allowed at a maximum combined thickness of .065″.
  • Any carburetor adapter or spacer allowed up to 2″ thick.
    • 2 circular holes or 1 oval hole allowed, beveled and/or tapered.
  • No modification to carburetor for mounting.
  • 350 cfm carburetor must use 30cc accelerator pump only.
  • Carburetors will be checked per NASCAR Late Model Stock guidelines.
  • No polishing, grinding, or machine work allowed.
  • No baseplate modification.
  • No drilling of additional holes except per NASCAR rulebook.
  • Boosters may be changed but:
    • No modification to booster size or shape.
    • Height and location of boosters must remain per factory specifications.
    • Boosters must remain OEM outside diameter.
  • Venturi area may not be altered or reshaped in any way.
  • No altered gaskets or baseplates, or drilling additional holes into the carburetor.
  • Butterflies may not be thinned or tapered.
    • Idle holes may be drilled in butterflies.
  • Screw ends on butterflies may be cut even with shaft, but screw heads must remain standard.
  • Shafts may not be thinned or cut.
  • Accelerator pump discharge nozzle may be changed.
  • Power valve may be changed.
  • Jets may be changed.
  • No outside air may be pulled through carburetor other than through venturi.
  • Anything not written in these rules will be teched per NASCAR Late Model Stock carburetor rules.

Air Cleaner

  • All cars must use a metal air cleaner housing.
  • Aftermarket air cleaner allowed up to 14″ diameter x 5″ tall.
  • Paper element or K&N-type element allowed.
  • No funneling of air to the air cleaner or carburetor.
  • Base of air cleaner must be below choke horn.
  • No carburetor hats or baffles.
  • Top and bottom of air cleaner housing must be the same size.

EFI:

  • Stock unaltered air box or can-style air filters allowed.
  • Can-style air filter:
    • Maximum 8″ round x 8″ long.
    • Must connect to throttle body with a sealed duct no longer than 8″.
    • Duct may not drop below crank bolt.

Fuel and Fuel System

  • Track fuel or pump gas allowed.
  • No E85.
  • No additives.
  • No fuel cooling devices.
  • Maximum fuel cell size: 12 gallons.
  • Fuel cell:
    • Must be mounted in a can made of at least 22-gauge steel.
    • Must be mounted in center of trunk area between frame rails.
    • No more than 2″ deviation from center of rear tread width.
    • Must be protected with sufficient structure, including a bar below and behind the can.
    • Venting high and to the driver’s side recommended.
  • Fuel pumps:
    • High-performance mechanical or electric allowed.
    • Electric pumps must have rollover valve and safety switch.
    • Must be approved by tech.
  • Fuel will be checked randomly.
  • EFI cars may run factory fuel tank in factory location only.

Electrical Systems

  • Battery:
    • Must be securely mounted and enclosed to protect driver from spills or explosions.
    • Must be mounted in trunk or through floorboard but no lower than frame rails.
  • One battery only.
  • 12-volt electrical system only.
  • Standard or electronic distributors may be modified for reliability only.
  • Stock-type coils only.
  • EFI engines:
    • Must run OEM ignition and electrical system for declared engine model (wiring harness, coil packs, etc.).
    • OEM-style ECU or standalone units allowed.
    • No in-race adjustability by driver or crew.
  • MSD, Accel, Mallory, etc. internal parts, coils, or modules allowed if stock-type.
  • No magnetos.
  • No multi-spark discharge (MSD) boxes allowed.
  • Points-type ignition allowed.
  • No full aftermarket distributors allowed.
  • No adjustable timing controls.
  • No traction control devices.
  • All wiring must be securely insulated and fastened.
  • Any spark plug wires allowed.
  • Any spark plugs allowed.
  • No dual-point distributors allowed.
  • MELS distributors allowed.
  • MELS or MSD-type rev limiters allowed (must be mounted in plain view).

Cooling System

  • No antifreeze allowed.
    • First offense fine: $100.
  • Stock-style cooling system in stock location.
  • Any radiator allowed.
  • Water wetter-type additives allowed.
  • Electric fan allowed.
  • Overflow hose must be routed either:
    • To base of windshield on passenger side to alert driver in case of overflow, or
    • To a sealed catch container in trunk area.
  • Fabricated radiator mounting allowed.
    • Radiator must be mounted between frame rails.

Exhaust System

  • Any stock or aftermarket exhaust manifold or header allowed.
  • 4-into-1 and Tri-Y headers allowed.
  • Exhaust must exit behind the driver’s seat and extend to outer edge of car.
  • No exposed pipes in driver’s area.
  • Exhaust may run through inside of car if completely boxed, sealed, and approved by tech.
  • No turn-down pipes.
  • Mufflers allowed, and may be mandatory at some tracks.
  • Crankcase-to-exhaust evacuation systems allowed.
    • Only quality check valves permitted.

Oiling System

  • Stock-type wet sump only.
  • External oil filter and cooler allowed:
    • Must remain under hood.
    • Must use steel braided hose and AN-type fittings.
    • No rubber hose or hose clamps allowed.
  • No dry-sump or Accu-sump systems allowed.
  • Any aftermarket racing oil pan allowed.
  • Screen kits in oil return system allowed.
  • Oil pan baffles to prevent oil from flowing away from pump pickup allowed.
  • Windage trays allowed.

Ground Clearance

  • All measurements taken with driver in car in race trim.
  • Front spoiler: minimum 4″ from ground.
  • Center of crankshaft bolt to ground: minimum 10″.
  • Ride height: minimum 4″, measured at lowest portion of car (including side skirts and wear strips, but excluding exhaust).
  • Fuel cell and/or fuel cell frame: minimum 8″ from ground.
  • Oil pan: minimum 4″ from ground.

Wheels and Wheel Spacers

  • Maximum wheel width: 8″.
  • Steel wheels only.
  • Any wheel stud diameter and length allowed.
  • No pressure relief valves allowed.
  • No wheel weights allowed.
  • Any size/type/arrangement of wheel spacers allowed to reach maximum ride width.

Weight

  • All weights and percentages measured with driver in car in race trim.
  • EFI: engine model must be displayed on hood.
  • Advertised engine size (in CC) and left-side weight percentage must be displayed on hood so tech can read it on the scales.
  • Fuel burn-off will be calculated at 3/4 lb per lap.
  • All cars will weigh 1 lb per CC after race with a minimum of 2050 lbs.
  • Toyota 20R block with 22R head must weigh 1 lb per CC.
  • Ford 2300 head on 2000 block must weigh 2250 lbs.
  • Ford Pinto/Ranger 2000cc (small valve) must weigh 2150 lbs.
  • Ford Pinto/Lima-style engine with 1.50″ intake and 1.75″ exhaust valves may compete at 2300 lbs.
  • All EFI cars will weigh 1 lb per CC with a minimum of 2225 lbs.
  • Honda B20 may run B18 head and fuel system at 2300 lbs (intake, throttle body, injectors, and rail).
  • Maximum left-side weight: 55% of total weight, unless otherwise directed by tech.
  • Minimum nose weight: 52% on all cars.
  • No dislodged parts may be added back to the car after the race to make weight.
  • All lead must be in blocks and painted white with car number on it.
    • All weight must be securely bolted with nylon lock nuts or double nuts.
  • Any chassis design or car make with an obvious advantage over the field may be subject to weight and/or percentage additions for competitive balance, at tech’s discretion.

Safety

  • Seat belts:
    • 5-point harness minimum.
    • Belts must not be more than 5 years old from date on tag.
    • If no date is present, belts must be replaced.
  • Helmet:
    • Snell SA95 or better required.
  • Driving suit:
    • Flame-retardant suit with minimum SFI-1 rating required.
    • SFI-5 highly recommended.
  • Flame-retardant gloves and shoes highly recommended.
  • Neck protection:
    • Neck collar or head-and-neck restraint highly recommended (R3, HANS, Hutchens, etc.).
  • Seat:
    • Aluminum racing seat only.
  • Window net:
    • Approved window net required.
  • Fire suppression:
    • 2.5 lb fire extinguisher with gauge required within reach of driver or
      a switch to activate an onboard fire suppression system.
  • Master kill switch:
    • Must be mounted within easy access of driver and safety crew from outside the car.
  • If car does not pass pre-race safety tech, it may not practice or race until corrected.
  • Radios allowed.
  • RaceCeiver (or equivalent) is required for all drivers, every race.
  • Driver must have an in-car receiver and it must be operational any time the car is on track.
  • Recommended unit (spotter can plug into it): https://www.sriperformance.com/RaceCeiver-Raceceiver-Legend-Plus
  • Transponder mandatory.
    • Must be mounted on or behind rear axle.
  • Tech must approve all racecars to compete. Their decisions are final.

Tires

  • Hoosier 790, 800, or Sportsman tires allowed.
  • All four tires must be the same compound/series.
  • No mixing of tire types.
  • Tires may not be softened or altered by any chemical.
    • Subject to lab analysis or other inspection methods.
  • Tires must be inspected, approved, and marked prior to race to be eligible.
  • Driver is responsible for competing on correct tires.
  • Tires may be branded and/or marked inside and out.
  • The four tires you qualify on are the four you must start the race on.
  • The four tires you start on must be used for the entire race unless there is obvious damage making a tire unsafe.
  • These four tires may be moved around on the car during a halfway break but may not be changed unless approved by a race official.
  • Tire Protest:
    • Tire protest fee: $125
    • Tire protest acceptance fee: $125
    • If tire is found legal, the protested team receives their $125 back, and the remaining $125 is used to pay for tire sample testing.
    • If tire is found illegal, protester’s $125 is refunded, and the protested team’s $125 goes toward tire testing and/or track as determined by tech.

Protest Procedure

  • Passing initial inspection does not automatically declare a car legal in post-race inspection.
  • If you suspect any part of your car is not clearly covered in these rules, discuss this with tech before the race.
  • Outside of normal random checks, a team may protest the car that finished directly in front of them only.
  • Only a car finishing in the top 4 positions may be protested.
  • A written protest must be submitted before the protested car leaves the scales.
    • Protest must detail exactly what is to be inspected.
  • Upon delivery of written protest, required cash must be given to tech.
    • All protests must be accompanied by cash before tech will proceed.
  • Once cash is submitted, a representative of the protested car will be asked to accept or deny the protest.
  • Only one representative of the protesting team may observe the tech procedures.
  • Tech’s decision on whether the car is legal per posted rules is final.
  • If the protested car had a pre-announced infraction and associated penalty and was allowed to race:
    • That infraction will be disregarded during protest-related tech.
    • This penalty and infraction will be announced and noted on the hood of the car near the CCs and weight spec.
    • The protesting team will be allowed to withdraw their protest.

Protest Price

  • Entire car, bumper to bumper:
    • $900.00 total
    • $200.00 to track
    • $700.00 to winner of protest
  • Entire bottom end of engine including clutch and flywheel:
    • $500.00 total
    • $100.00 to track
    • $400.00 to winner of protest
  • Head, carburetor, EFI system, intake, spacer, and bore & stroke:
    • $300.00 total
    • $100.00 to track
    • $200.00 to winner of protest
  • Bore and stroke only:
    • $150.00 total
    • $50.00 to track
    • $100.00 to winner of protest
    • Note: if this protest is chosen, the head comes off, but the protesting team is not allowed to inspect the head.
  • Clutch and flywheel only:
    • $150.00 total
    • $50.00 to track
    • $100.00 to winner of protest
  • Suspension (per end of car), including visual inspection of shocks:
    • $300.00 total
    • $100.00 to track
    • $200.00 to winner of protest
  • Shock/strut claim:
    • $100.00 per shock
    • $200.00 per strut
    • Refusing claim will result in disqualification but no weight penalty.
  • If the protest is not accepted, protest money will be refunded.
  • Teams found illegal through protest and teardown:
    • Lose all points and money for that event.
    • Will carry an additional 150 lbs for a total of 2 series races after infraction.
  • Illegal parts may be confiscated at tech’s discretion.

Competition Rules

  • Cars going more than 2 laps down under race conditions may be required to retire from the race.
  • The track reserves the right to level competition if necessary to prevent one driver, car, or engine from dominating the races.

General

All rules are subject to change to keep competition fair for everyone.

Any questions or comments, please contact:
Langley Austin – (276) 613-4208
Email: langley@race22.com