I'm getting the fluttering sound from my bov when I release the throttle under boost. I am boosting up to 10 #s right now on the stock turbo. My old apexi unit fluttered and so does my used blitz unit. I have it hookedup to a vacuum/psi source, and I have played with the spring settings on it to no avail. I have heard the flutter sound before on other stock turbo cars with upgraded bovs. I think its the sound of compressor surge. My old stock bov sounded right.So whats going on?
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Make sure the vacuum source is behind the throttle plate, when the plates close a vacuum is created which should open the valve, if you have the source before the plates you are providing a boost source to the BOV and all you are doing is holding it closed real well https://www.nopistons.com/forums/pub...IR#>/smile.png
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opps. We shall try that.
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Yea, we shall check that out. https://www.nopistons.com/forums/pub...DIR#>/cool.png
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