It's like something going around in a circle at 1rpm. If the circle is 1 foot in diameter it is traveling at 3.14 feet per minute. If the circle is 10 feet in diameter it is traveling at 31.4 feet per minute. The bigger the circle (stroke) the faster the something (piston) travels. Did I get that right Builder?

Last edited by FriedGreenTmater; 02/23/2010 6:47 PM. Reason: feet per minute - not second
1953 Chevrolet 3600
Fried Green T'mater (Vern)
In the Stovebolt Gallery
Caution: Political Statement
Man who runs in front of car gets tired, man who runs behind car gets exhausted.