The Engine Analyzer EZ program by Performance Trends Inc. is a software system to help engine builders, performance enthusiasts, and even the average driver understand and predict many aspects of full power engine performance. Simplified inputs, many which can be simply picked from a list. Simplified output, concentrating on terms most people are familiar with.
Calculation menus to calculate some specs from other inputs.
Engine library comes with about 30 engines pre-programmed, and capable of holding hundreds of engine files you create. XMPL buttons for examples of specs for specific manufactuter's components, like cams, heads, carb size, etc. Torque and HP plots to check performance improvements. Plots can be printed with most any Windows compatible printer. An estimated spark curve, which is automatically retarded to avoid detonation based on engine conditionsand the Fuel Octane entered.