Yeahh...
Surge and blow-off valves prevent the compressor from dead-heading when the throttle closes - which really slows it down, and eventually fatigues the compressor blades. Heard of water-hammer? Same thing. Compressor will continue to spin happily when there is no boost being made because of the huge leak the valve causes, no matter where it goes.
Keep an open mind, somebody might actually know what they are talking about - instead of thinking they know.
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PT GT - Fastest damn lease car I could hope to have...
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