2016 Class Rules
Note: Classing rules ONLY, see safety rules which apply to all classes.
Group N2
-Chassis/body:
- Factory metal unibody must remain uncut. Unbolting unnecessary brackets, supports, etc. allowed
- Must be a Honda chassis.
- All factory window glass must be present and operational. (Converting to manual windows from power windows allowed)
- Sunroof removal allowed.
- Lightweight body panels allowed. (hood, trunk, doors, etc.)
- Headlamps, taillights, turn signals must be present and operational.
- GT wing, splitter, canards or diffuser not allowed.
- Front lip and one piece rear spoiler allowed. (Example: Mugen DC2 Gen1 ok, Gen2 not allowed)
-Engine:
- Any D/R/L series engine allowed in ANY Honda chassis
- Any Non-VTEC B series engine allowed in ONLY Integra chassis
- Any H/F series engine allowed in ONLY Accord/Prelude chassis
- All internals must consist of OEM Honda or equivalent components (pistons, cams, etc.) with exception to fasteners, bearings, seal kits, etc.
- Forced induction not allowed
- Adjustable cam gear(s) is allowed.
- Ignition system unlimited.
- Porting, surface treatment, machining etc. is allowed.
- Fuel limited to pump gasoline/E85
-Drive-train:
- Driveline configuration change not allowed.
- Transmission case must be a Honda part
- Gears must be Honda parts
- Final drive unlimited
- LSD unlimited
- Clutch/flywheel unlimited.
-Footwork:
- No pickup point changes allowed.
- Limit 2 way damper (compression, rebound independently adjustable)
- No ride height adjustment restriction
- Brakes unlimited
- 140+ TW tires only
- Max tire size 235
Group N
-Chassis/body:
- Factory metal unibody must remain uncut. Unbolting unnecessary brackets, supports, etc. allowed
- Must be a Honda chassis.
- All factory window glass must be present and operational. (Converting to manual windows from power allowed)
- Sunroof removal allowed.
- Lightweight body panels allowed. (hood, trunk, doors, etc.)
- Headlamps, taillights, turn signals must be present and operational.
- No GT wing, splitter, or diffuser allowed.
- Canards allowed
- Front lip and one piece rear spoiler allowed. (Example: Mugen DC2 Gen1 ok, Gen2 not allowed)
Engine:
- Engine swaps unrestricted except K series (see below)
- K series engine allowed only in a vehicle originally equipped with a K series.
- Engine internal modification unlimited
- Forced induction not allowed
- Ignition system unlimited.
- Porting, surface treatment, machining etc. is allowed.
- Fuel limited to pump gasoline/E85.
-Drive-train:
- Driveline configuration change not allowed.
- Transmission case must be Honda
- Aftermarket gear sets allowed
- Final drive unlimited
- LSD unlimited
- Clutch/flywheel unlimited.
-Footwork:
- No pickup point changes allowed.
- Limit 2 way damper (compression, rebound independently adjustable)
- No ride height adjustment restriction
- Brakes unlimited
- 140+ TW tires only
- FWD tire size unlimited
- RWD max tire size 255
Group A2
-Chassis/body:
- Factory metal unibody must remain uncut between shock towers.
- Tube frame front, rear, allowed.
- Tubbing of inner wheel wells allowed
- Must be a Honda chassis.
- Sunroof removal allowed.
- Front glass windshield must be present.
- Lightweight body panels allowed. (hood, trunk, doors, etc.)
- Brake lights must be present and operational.
- GT wing, splitter, canards and diffuser allowed with use of 140+TW tires (see footwork section)
-Engine:
- Must be based on a Honda engine.
- Force-induction not allowed.
-Drive-train:
- Driveline configuration change not allowed.
- Transmission case must be Honda
- Gear sets unlimited
- Final drive unlimited
- LSD unlimited
- Clutch/flywheel unlimited.
-Footwork:
- No pickup point changes allowed.
- Limit 3 way damper.
- No ride height adjustment restriction
- Brakes unlimited.
- Cars without splitter/GT wing: 80+ TW tires allowed
- Cars with splitter/GT wing; 140+ TW tires allowed
- FWD tire size unlimited
- RWD max tire size 285
Group A
-Chassis/body:
- Front windshield must be present, may be polycarbonate
- Non-Honda chassis allowed if equipped with a Honda Engine.
- Sunroof removal allowed.
- Lightweight body panels allowed. (hood, trunk, doors, etc.)
- GT wing, splitter, canards and diffuser allowed.
-Engine:
- Modification unlimited
-Drive-train:
- Modification unlimited.
-Footwork:
- Must use DOT approved tire.
For questions or request, please email us at VTECclubUSA@gmail.com.