When I switch gears, and once I get into the next gear, the blow off valve sounds gets cut off. Is that normal? In videoclips, I hear the full sound of the blow off valve. With mine, when I shift, you hear the blow off valve but once I get into the next gear, it goes away. So if I shift quick, you only hear it for half a second or so.

 

You know the blow off sound is controlled by your throttle and not your shifting.

 

I know that. I guess its hard to explain.

 

im no expert but maybe you can loosen the spring a little

 

I have a weird problem with my bov too. When I shift it goes FFF FFF FFFF FFF like a rapping sound. Is this a problem? I loosened the spring but it seems to do the same thing.

 

Your bov is not reacting fast enough, and it is causing a slight compressor surge. That is what the ff ff f f f f f sound is. It's not very bad, because it is only really minor, but over time it can affect your seals.

 

Which seals are at risk. Plus im on a very low boost budget, high compression. The BOV is causing the surge? Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbod96ex &raquo;</TD></TR><TR><TD CLASS="quote">Which seals are at risk. Plus im on a very low boost budget, high compression. The BOV is causing the surge? Thanks</TD></TR></TABLE>

the turbo seals are at risk, and after awhile compressor surge will give the shaft of the turbo alot of play. just adjust the BOV. It should have a screw of some sort on it, just loosen it some.

 

For you guys getting the compressor surge or massive fluttering.

Try using a better vacuum source. I know a lot of people like to tee the hell out things. The best thing to do is tap some barb fittings into your intake manifold and use those.

Or get a good vacuum distribution box and hook it up between the brake booster and the intake manifold.