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View Full Version : Trouble boosting


Buster
06-02-2006, 08:42 PM
Lately Ive been having alot of trouble boosting over 15 PSI. My normal with my MBC tuned the way it is comes out to 18. Prior to this I was running a GREDDY type RS BOV atmospheric, now im running the stock Bypass valve. Is it the humidity or is it the stock Bypass valve not allowing. It hits 15 PSI no matter what. I also checked there is no leaks.

turbo4g63
06-08-2006, 07:39 PM
throw another bov on there, if it goes back to the way it was then that was the problem...if not, it would inspect all hose couplings again......or if you wanted to get crazy you could ditch the whole stock thing, and go vf34, Access port and a FMIC, and that would solve just about any problem

olmytsi
06-08-2006, 08:13 PM
How about doing a boost leak test?

Buster
06-09-2006, 12:53 AM
I just needed to turn the boost controller a little more with the stocker on there. Actually, the stock bypass holds alot better then my greddy did. I drop less then one PSI now at high RPM.. WOOT!!