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*GTAHVIT* · 08-05-2008, 12:05 PM

On the supercharger the valve is open at low rpm/load you don't hear it. When you increase the vacuum the valve closes to route the compressed air into the intake manifold.

Unlike the Turbo which releases unused air when backing off the throttle.

08-05-2008, 12:05 PM	#67
GTAHVIT Blessed Drives: 2013 Sonic RS MT Join Date: Dec 2007 Location: Saint Augustine FL Posts: 28,441	On the supercharger the valve is open at low rpm/load you don't hear it. When you increase the vacuum the valve closes to route the compressed air into the intake manifold. Unlike the Turbo which releases unused air when backing off the throttle. __________________ Click image to see build thread. PQ - "the love of cars. It's a boys first step toward manhood and a mans last hold on boyhood." Fbodfather - "We do not want to use the Z28 moniker on a car that does not deserve this hallowed name." The_Blur - "Let's not confuse competitors with equals."