Huge Leak from stock BOV, at low psi.

[mattdev]

Igght, did a real boost leak test. My stock BOV leaks ALOTTT from the dump end. (expected it to leak at 112-15psi) I couldn't hold enough pressure to read on a tire gauge. Is there something I'm missing? When driving I make about 10 psi (only at full throttle). Should I be making more than that?

Everything else holds pressure (at least before the BOV), so thats a relief. (based on the fact that my stock intercooler pipes were inflated like a tire and had no leaks before or after intercooler).

My BOV seems to be the culprit. I'm planning on a Greddy Type S, so I'm not too worried. Whats your opinion?...

 

[chico904]

10 p.s.i. seems normal. Everyones car varies anywhere from 8-12 on the stock bov and stock settings. Anyways, get rid of the bov, they are made of plastic and are prone to leaking whenever you turn the boost up. The greddy type-s is sweet, but you can pick up the 1g bov a lot cheaper, and they work very well.

 

[Talesin]

1) Don't vent, if you are.
2) Open your throttle body when doing the boost leak test. The stock CBV needs positive pressure on that vacuum line to help hold itself shut.