Thread: 5.7" OD Crank Pulley
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Old 07-24-2006, 10:28 AM   #37
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Default Re: 5.7" OD Crank Pulley
Quote:
Originally Posted by pocus
is the ratio of a procharger the same as that of the vortech or s it different.


For the procharger the math goes

Impeller RPM = (Crankshaft pulley diameter/ Super charger pulley diameter) x 4.7 x engine RPM
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