The Super 4-Bangers Division follows many of the same base rules as the 4-Bangers division, with expanded performance allowances and NO breakout / time cap. Eligible drivers may compete in both divisions using different cars.
General Rules
- 4-cylinder Front Wheel Drive vehicles only
- Naturally aspirated engines only
- All SEHA safety rules must be met
- Driver must have all safety items dated within 5 years of race day
- Containment seats required for drivers under 18 years old
- Window net or arm restraint required
- 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
- Radios and spotters ARE allowed
- Mirrors are allowed
- Transponders required (rentals available from the track)
Engine, Exhaust & Chassis Rules
- Engine must be from the same manufacturer as the car
- Engine swaps are allowed
- Frankenstein / hybrid engine builds are allowed
- Car must meet the minimum weight based on the highest horsepower rating of the engine or cylinder head used, whichever is greater
- Example:
- B16A = 160 HP → 2400 lbs
- B18B (non-VTEC) = 140 HP → 2300 lbs
- B16 head on a B18 bottom end must weigh 2400 lbs
- Example:
- Required minimum weight must be clearly displayed on the right front fender above the tire
- Tube chassis cars are not allowed
- Exhaust must run underneath the car and exit behind the driver
- Either side is permitted
Fuel Rules
- Pump gas or Racing Fuel only
- No E-85, methanol, alcohol, or oxygenated fuels
Weight Rules (Based on Horsepower)
Weights include driver and all fluids
- Under 100 HP – No minimum weight
- Up to 120 HP – 2200 lbs
- Up to 140 HP – 2300 lbs
- Up to 160 HP – 2400 lbs
- Up to 180 HP – 2500 lbs
- Up to 200 HP – 2600 lbs
- 220+ HP – 2800 lbs
Suspension Rules
- Strut towers cannot be modified and must retain factory mounting locations
- Strut braces are allowed
- Maximum 5 degrees of rear camber
- Maximum 3 degrees of rear steer or toe
- No solid suspension components
- No chaining of suspension
- Minimum ride height: 4 inches
Wheel & Tire Rules
- Steel wheels only — no aluminum
- OEM, aftermarket, or racing steel wheels allowed
- Maximum 3″ offset / backspacing
- Wheel offset must match on both sides
- Stock Chevy Cavalier wheel not allowed on the right side
- DOT tires 200 treadwear or higher required
- Hoosier 790s and Sportsman tires allowed
- No tire doping or chemical softening
- Wheel spacers allowed
- If not bolt-on style, extended lug studs required
- One-inch lug nuts required when using racing wheels
Safety Requirements
- Safety hubs required on all GM cars
- All safety equipment is subject to inspection at any time
Appearance Rules
- Must retain stock body dimensions
- Aftermarket bodies allowed
- 100 lbs added to minimum weight if aftermarket body is used
Competition Balance & Rule Adjustment Notice
These rules are written with the understanding that the Super 4-Bangers Division is an open-style division where creativity and variety exist across the field. Because no rulebook can anticipate every possible scenario, the track reserves the right to make adjustments or changes at any time to maintain fairness and competitive balance within the division.
Any car, driver, or engine combination that demonstrates a dominant competitive advantage may be subject to technical evaluation, and competitive adjustments may be applied as necessary in the interest of parity and quality racing.
Final Rule
If it’s not listed in this rule package and does not violate safety, it is assumed to be legal.