Thread: Winfield su1a
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Old 09-25-2020, 09:08 AM   #16
Ol' Ron
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Location: Chester Vt
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Default Re: Winfield su1a

when looking at the timing of a cam for street use, check the closing of the intake valve. This determines the dynamic compression of the engine,because, compression doesn't start untill mit closes. O the L-100 a cylinder with a static CR of 8:1 will have a dynamic CR of 6:1. This is one reason the L-100 didn't work very well in a stock engine. The loss of compression reduces the amount of torque the engine can produce. I don't have the information handy for calculating this, but I'm sure somebody does.
Gramps
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