cam grinds for SC

Greg Hermann bearbvd at sni.net
Fri Apr 30 13:21:28 GMT 1999


>To my mind, roots type or centrifugal type superchargers would both benefit
>from small overlap cams.  This is because these are the only engines that
>have greater intake pressure than exhaust pressure.  Too much overlap just
>blows intake out the exhaust.
>
>Gary Derian <gderian at oh.verio.com>
>>
I think maybe even a bit milder cam for a centrifugal than for a roots--The
centrifugal has very little boost at low rpm, so needs cam help down low.
The centrif. has LOTS of boost at the high end, so is able to counteract a
mild cam pretty well up top. For either, I would think rather wide lobe
centers would be in order--114 or even 116.

Regards, Greg





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