The Piston Speed calculator computes the average (mean) speed of the piston based on the stroke length and the RPMs.One rev
INSTRUCTIONS: Choose your units (e.g. inches or centimeters) and enter the following:
Piston Speed: The calculator will compute the average piston speed in feet per minute. However this velocity can be automatically converted to other speed units (e.g. meters per second). For the CLICK HERE.,
The Piston Speed equation calculates the mean velocity of the piston based on the cylinder stroke length and the RPMs. The piston's speed of travel up and down the cylinder is always changing and actually comes to an instantaneous stop at both the upper and lower ends of the stroke at the beginning and end of a single revolution. Therefor we can only calculate the average (mean) velocity based on RPMs. In one minute, the pistons travel two times the stroke length times the number of revolutions (2 * Stroke * Revs). Divide that by one minute and you have the mean piston speed.