Thread: Who makes the best cams & cam gears? for B18c1
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Old Sep 19, 2006 | 01:11 PM
  #25  
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MTEng
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Originally Posted by Däs Schmoo
Ah. Is there a concrete formula to compute max piston speed? All I could find was mean piston speed and maximum piston acceleration.
Well, there definitely is one.... but it's been 22 years since I studied trig in school so gimme a few. In the meantime, here's some interesting reading:


B-Series Compression Calculator v.85 BETA

Engine Technology

Max piston speed comes in when the piston is nearing TDC ... @ 73 degrees BTDC according to the Engine Tech site listed above (which sounds about right). Since you have the formula for the acceleration curve and know the point on it at which the piston reaches max speed it should be quite easy to calc max piston speed. I'll look at it and see what I can come up with. Maybe one of our Cal Tech or MIT compadres can whip that formula out real quick
Last edited by MTEng; Sep 19, 2006 at 01:20 PM.
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