Quote:
Originally Posted by Stan Weiss
Jay,
Are you sure about the 60311 Adv duration being at 0.020"? I have not had any Crower cams, but the adv duration to 0.050" splits are 45 Intake and 50 Exhaust.
Stan
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There is less acceleration on the exhaust, that is why it has a 5 E/I split at .050” and more at its advertised rating. Quite a few Crower cams are like that. Crower does have their own way of choosing seat ratings on cams, it could definetly be calculated from something other than @ .020”.