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Discussion Starter #1
I installed my Greddy BCC, and just pulled the VSV hoses just to see what boost i'd be hitting...the turbos get up to about 14pnds n drops to like 12 n steady holds that...whats up? are my VSV's funked up? boost leak? what?
 
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FUCK IT!!! I'm just gonna go single with a FMIC...thatll fix it! LoL
 

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Still Sportin' the Twins
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First, are you sure you pulled the right hose?

http://www.mkiv.com/techarticles/vsv/vsv.htm

If so, I'd pressure check your intake for leaks. For a good way to pressure test everything at once, read this old post:
http://www.supraforums.com/forum/showthread.php?p=2816513#post2816513

You might also want to test your BOV in case it's leaking. You'll need a couple big hoses and adapters to do it right, but it's doable. Just make sure you pressurize both the large inlet and the TB pressure source or it will start leaking around 5 psi...

Here's a pic of how I tested my BOV:


David
 

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You didn't mention other mods, like exhaust. If you have stock exhaust with the cats, that will also limit your boost well below BPU levels.
 
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thanks everybody i figured it out, its the cats...i just ordered my downpipe :-D
 
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I didn't think about that at first but my buddy Jim told me about that so i was like shit that makes sense...welp we live n we learn...
 
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