Performance Calculator Engine Calculations

Performance Calculator offers numerous mechanical engine calculations as well as an engine simulator. The primary calculations included are:

• Air and fuel flow (total and per cylinder)
• Camshaft intake / exhaust center angles, lobe center angle, lobe center point, overlap, and lobe areas with profile and acceleration graphs.You can enter cam specs by opening/closing points or by duration and lobe angles, or you can enter detailed lift heights at crank positions. Lift height data can be entered using any desired crank position.
• Combustion chamber volume
• Compression ratio
• Piston dish / dome volume
• Displacement, cylinder volume, area, ring length, bore/stroke ratio
• Efficiency (based on air flow, fuel flow, power or torque), BMEP, BSFC
• Fuel injector sizing / timing / tuning
• Header tubing length and diameter (2 different calculations - one uses camshaft data)
• Header collector dimensions
• Intake manifold runner area and length
• Maximum RPM
• Octane requirement
• Piston speed and position (including graph)
• Port velocity
• Power and torque (including boost & nitrous)
• Power curve input
• Power table input

Power curve input