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what does a reed vlave do?

1213 Views 7 Replies 2 Participants Last post by  supra400hptt
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what does it do?
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As the #2 starts getting prespooled it beings to build boost. If the boost gets high enough before both valves that control #2 open fully, the reed valve serves as a bypass and lets the boost start flowing into the intake path. Basically a pressure relief as #2 comes on line with #1. Sits on top on the passenger side of the engine in the intake path. You can see it sinces it's inside the piping. Only the cover to it can be seen.
Should have said "can't see it since it sits in the intake piping." Still early here.
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what happens when it goes bad? I am running TTC..
fog horn noise on shut down is one symptom
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would a bad reed valve effect performance ?>
Speculation, but I don't think it would hurt performance. I believe this valve is pretty small and any leakage shouldn't really affect the spooling of the turbo. Maybe even make it spool quicker. The transition of prespooling and the vavles opening happens pretty fast.
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