This calculator computes the motion data of a piston in a cylinder from TDC to BDC.
Various parameters may be selected from the provided Pontiac engines pulldown
or you may enter your own.
The calculated results are:
Additional results are:
- Crank angle is the crankshaft rotation from TDC to BDC in 10-degree increments.
- Rod Angle is the angle in degrees between the bore centerline and the
line between the small & big rod end centers.
- Piston travel is inches down from TDC.
- Piston speed is in Feet Per Minute (FPM) for the RPM in Engine (parameters).
- Piston accel is in Feet Per Minute squared (FPM^2).
- Effect C.R. is the effective compression ratio at the crank position listed.
- Effect lever is the effective lever arm in inches whose maxiumum value is half of
stroke which occurs at the optimum crank angle.
- Opt angle: is when the connecting rod and crankshaft arm are at right angles.
- Max speed: is the maximum piston speed at the closest 1-degree increment.
- at angle: is the crankshaft rotation where Max speed occurs.
- Mean speed: is the average piston speed, i.e., stroke length times RPM in Engine (parameters).