Mini Stock Division
MINI STOCK drivers review the addendum page for new weight guidelines.
- Top three dirvers from previous race start at the rear of the next race.
- The track may add weight to any driver that wins 2 consecutive races.
- All cars will weight one pound per cc with driver after the race. No penalty for over bore.
- 2500cc max. Maximum required minimum weight will be 2500lb.
- Any car without a stock chassis must add 100lbs. Stock chassis is defined as having a factory full firewall, floorpan, and factory suspension mounting points with the exception of front upper strut mounts may be relocated.
- Any car claiming 2500cc must have 50lb of lead in front of flywheel.
COMPETING MODELS
- Any four cylinder American or Foreign made production sedan.
- No sports cars, convertibles, high performance cars, station wagons, turbo or rotary cars.
BODY
- After market bodies legal.
- Trunk and engine compartments must be sealed from drivers compartment with a steel firewall.
- No hood scoups.
- Must have safety bars in front of driver.
- Must pass safety and technical inspection.
- Spoilers maximum 6 inches high may not exceed width of rear deck.
- Cars must have factory firewall and floorplan to the rear of the driver, enclosed compartment ok.
SUSPENSION
- Stock type suspension.
- Changing of springs permitted.
- Optional coil over front only– add 50 lbs.
- Lowering blocks and wedge bolts permitted.
- Strut cars may use adjustable plates for caster camber adjustments.
- Frame may be tied together with box tubing.
- Tube chassis ok, must be tied to driver compartment.
- Rear suspension optional.
- No after market rack and pinions.
- Any stock chassis with full firewall, floorpan and suspension mounts or pick ups will receive a 50 lb weight break.(Must be approved by the tech official before race.)
ENGINE
- Front of head must not sit more than one inch behind ball joint.
- No porting or polishing.
- No 2000 truck engines.
- Heads
- No aftermarket or 4 valve heads permitted.
- Overhead cams may machine lifters bosses for lash adjusters.
- Overhead cam heads may have cam towers reinforced.
- Valve Job
- Three angle permitted.
- Stainless valves okay, must be stock diameter for engine.
- May use after market springs retainers and locks.
- No titanium anywhere.
- Pistons
- Any flat top maximum .060 overbore plus wear.
- Rods
- Steel rods only. May change rod bolts and float pin end of rod.
- Crankshafts
- Stock cranks only.
- No lightweight or knife edging.
- May balance with normal balancing procedures.
(IE: Drilling or adding heavy metal.)
- Blocks: Stock blocks only. No after markets. Piston may not protrude from deck. Head and main studs optional.
- Optional Equipment: Valve covers, oil pan, air filter, camshaft, headers and timing gears. No roller gears. No roller cam lifters or rocker arms.
- Stock unaltered OEM intake.
CARBURETOR
- Factory stock carburetor or stock factory replacement carburetor or any track approved two barrel not to exceed 500 CFM.
- May run Holley 4412, 500 CFM two barrel.
- Removal of choke butterflies and shaft permitted.
- May change jets.
- Carburetor Adapter
- May be made of aluminum or material to isolate heat.
- May not exceed 1″ height.
IGNITION
- Must be stock type, battery operated.
- Optional after market MSD ok.
- No crank triggered.
FUEL
- Gasoline only!
- May run electric fuel pumps with oil pressure cut off switch and master electrical shut-off switch. Accessible to driver and safety personnel.
TRANSMISSION
- Stock type must have all forward and reverse gears.
- Steel drive shafts only. Must be painted white.
REAR END
- Interchanging of rear ends and transaxles permitted.
- Locked differential permitted.
CLUTCH
- Stock diameter steel flywheel and clutch assembly only. 8 lb minimum.
BRAKES
- Must have four wheel operating brakes.
- May run aftermarket pedals and master cylinders.
- Brake bias permitted.
TIRES/WHEELS
- 8″ wide track approved racing tires permitted.
- Steel wheel only 8″ maximum width.
- Over-sized studs and lugs permitted for safety.
- 13 Inch tires only.
- May run bead locks on right side.
FUEL CELL
- Mandatory! Must pass safety inspection.
BATTERY
- May be relocated and must be covered and securely strapped down.
- Cars must be self starting at all times.
WEIGHT
- One pound per CC with driver after the race.
- Minimum weight 2100 lbs.
- Three valve heads must add 150 lbs.
- Any stock chassis with full firewall, floorpan and suspension mounts or pick ups will receive a 50 lb weight break.(Must be approved by the tech official before race.)
The absence of a specific rule or item does not mean it is approved. Consult with the tech-man for approval. All interpretations by the track are final. The track reserves the right to add weight to any competitor in the fairness of competition.