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Old 07-30-2013, 09:50 AM   #1108
mid_life_crisis
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Quote:
Originally Posted by sw20kosh View Post

A supercharger has no such mechanism to "keep the same pressure" in the manifold. A supercharged system that makes 10 psi at sea level would make, for example, 7 psi at high altitude. There is no wastegate to allow the supercharger to work harder to maintain 10 psi.
Some do. If you designed the system to produce the desired boost at altitude, the BOV should dump the excess at sea level.
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