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A Real Newbie Question...

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mieszkoj

15+ Year Contributor
43
1
Aug 10, 2005
Scarborough,
Hi. I have a real newbie question about BOV's. 98 GST stock is 14psi boost right? You install a BOV and you can boost up to 20+ per say... Wont this blow your head gasket??? Just curious.
 
A blow off valve (BOV) releases boost pressure when the throttle closes to prevent compressor surge. It isn't designed to control boost......that is what a wastegate is for.

Your BOV is designed to hold closed up to 14psi. Anything abouve that it starts to leak.

Hope this helps
 
ok my buddy installed some cheesy boost gauage i guess. I got a greddy type S on it now, and the guage shows sometimes 20+ boost.. But anyhow is it possible to blow ## head gasket if theres to much psi boost?
 
Its possable to blow your motor running that much boost on a stock turbo,motor,fuel setup
As far as the head gasket - the stock metal gasket can take that.
 
On a stock 2g your more likely to blow your turbo from that much boost then your headgasket. The t25 just starts blowing hot air after about 15-16psi. Fix your boost and set it at 16 and it should feel faster then now.
 
We already answered this in your other post. Why start another one with the same question?!?
 
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