Racing Downloads and Software

Compression Ratio ProgramDischarge Coefficient Calculator

(1) Program (.exe)
Calculates engine size. Play around with the bore and stroke to come up with the perfect engine.
  • Input: Valve Diameter
  • Input: Valve Lift
  • Input: Measured CFM
  • Output: Theoretical Max CFM
  • Output: Discharge Coefficient

Runs on all versions of Microsoft Windows

Part of the "Engine Pack" collection of programs.