Tires: Hooiser Only. All Micro Sprint classes must also run Spec Right Rear Tire Hooiser "D35" NMMA or ASCS Stamp. Siping and Grinding Legal.
Wings: "10 Foot" Square Only, All side boards legal. Any in Cockpit Slider legal, electric or manual.
Adjusters: Any Cockpit adjuster is legal, with inspection from Tech supervisor.
Brakes: Left Front Brake legal.
Engine: Any Year Model. Any 4 cylinder 600cc to 636cc max allowed. Cross breeding legal, (i.e., yamaha starter on kawasaki.) Carburation or Fuel Injection.
Stock 600cc car must weight at least 750 pounds with driver.
601cc thru 619cc car must weight at least 800 pounds with driver.
620 cc thru 636cc car must weight at least 825 pounds with driver.
Posted By: Rocky Watson
Remember if your are coming to race at Airport Raceway for the first time, Winged 600 open class rules are! Any adjusters, Any motor 600 thru 636cc, Spec RR of D35 or Nmma/Ascs stamp, and 10 FOOT WING!