Class Rules

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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.

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