Formula 600

Formula 600 (F600)[1] is a Sports Car Club of America (SCCA) and Midwestern Council of Sports Car Clubs (MCSCC) open wheel road racing class.

The rules state the elastomer must be 2" in diameter by 1" in thickness, but the design and implementation of the elastomeric springs (commonly called "pucks" by the competitors) is wide open.

Additionally, each chassis manufacturer produces bodywork of their own design, which adheres to dimensional constraints.

These regulations allow for very competitive racing at a relatively low cost, which rewards driver and car set-up skills.

[2] The Kawasaki 440/A engine, produced by Kawasaki, is a 436 cc piston port engine utilizing 38 mm Mikuni VM series carburetors and a tuned dual exhaust.

While this engine is no longer competitive in road racing, it is still widely used in Solo II and Autocross events.

It is a 497 cc reed valve engine using twin 38 mm Mikuni SuperBN carburetors.

The Rotax engine utilizes the same 38 mm Mikuni VM carburetors as the Kawasaki.

It also runs Mikuni VM series carbs and the "Y" exhaust manifold like its cousin the 494.

It also runs Mikuni VM series carbs and the "Y" exhaust manifold like the other Rotax engines, but are required to run a specified intake restrictor to keep power output on par with the 500cc 493 engine.

No aftermarket parts, port modifications, or other variations from stock configuration are allowed.

Two-stroke F600 cars use an advanced Continuously Variable Transmission (CVT), similar to that used in snowmobiles.