Stock 4

STOCK 4 Rules:

ELIGIBLE CARS – Front wheel drive or Rear wheel drive compact cars and trucks Allowed

ENGINE – Stock 4 cylinder only max factory rated HP 150 no turbo or supercharger.

AC system components maybe removed. Stock air intake/cleaner systems with regular filter only.

Stock exhaust manifold only. May use straight pipe exhaust same size from manifold to end. Must exit out from vehicle past driver.

SUSPENSION – Must be stock with no modifications at all. Shock and Springs must be stock for make and model and placement.

CAMBER – Max camber on front Using a framing square measuring from wheel lip to lip max different is .750” on 13s / 1.0” on 14s / 1.25’” on 15s. REAR must be zero toe and camber. NO rear steer.
Wheels – Stock wheels only for make and model. All must be the same size and offset.

TIRES – DOT Tread wear 400 and higher except on right front may be 200 and higher. Lowest Aspect ratio of 60. All must be same size.

BODY – Must be stock with all lights and trim and outside mirrors removed. All windows must be removed except windshield. May use lexan. Windshield braces are required. All interior items that are plastic and flammable must be removed. May skin doors for roll cage.

ROLL CAGE – Minimum 4 point with 3 door bars on drivers side and 2 on rightside. See roll cage components website for circle track start kit for style of cage required.

SAFETY – Stock bucket seat may be braced and stock 3 point belt system used. Alum. Race seat and 5 pt harness recommended. Window net must be mounted solid on bottom and latch release on top. Fire extinguisher with metal mounting bracket a must. Helmet, driving suit and gloves are Mandatory.

Weight can and will be added to keep vehicles equal.