Engine simulation models sold separately.

The engine model provide simulations of the actual firing performance of two-stroke engines, including the calculations of power, torque, air flow rate, fuel consumption, gaseous exhaust emissions, and intake and exhaust noise output.

Two models are available, each in either IBM or Macintosh formats. The first model predicts engine performance characteristics based on the physical geometry of piston-ported industrial engines, such as chainsaws, outboards, weed trimmers, generating sets, etc.