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Old 04-17-2008, 11:17 AM   #42 (permalink)
Rallye469
Senior Member
 
Join Date: Feb 2008
Posts: 223
Quote:
but I have not seen how to calculate piston speeds at different degrees of crank rotation.
found something. It's not a formula, it's more of a series of charts.
It talks about where and when maximum piston speed is achieved and why.
It also points out what the difference is between this and 'Mean Piston Speed',
which is the formula you referred to earlier.
Neat stuff.

On the previous page it explains how long/short rods alter speed.



http://www.epi-eng.com/piston_engine...celeration.htm
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