Quote:
Originally Posted by Dangeruss
 I'm a complete amateur at this, but I've never heard of installing a cam with a blower and not losing boost. Please enlighten me.  |
It primarily has to do with LSA and then duration... If the LSA is too small, then the exhaust and intake valves are both open at the same time... This can also be affected by the duration. The exhaust valve can still be open when the intake valve opens, thus, boost swirls through the chamber and out the exhaust valve...reduction in boost...limit the duration, and open the LSA and you retain the boost where you want it, in the cylinder... Basically, you want the exhaust valve closed when the intake valve opens...
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