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Mean Piston Speed Formula
Mean Piston Speed is important to engine designers so that: i) Piston rod breakages can be avoided and, ii) Loss of engine power can be avoided by ensuring that the Piston does not outrun the flame front. Note: In one revolution the maximum distance travelled by the piston = 2.0 * Stroke
Piston Speed Formula

Engine Displacement Formula
Trap Speed Horsepower
Power to Weight Ratio

Auto Math Handbook, J Lawlor, ISBN-13: 978-1557880208.
Race Car Engineering and Mechanics, P Van Valkenburgh, ISBN 0-9617425-0-X.