Trouble boosting - TriStateTuners.com :: Home of Tristate Auto Enthusiast

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!!

06-02-2006, 08:42 PM	#1
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	Trouble boosting 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. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

06-08-2006, 07:39 PM	#2
turbo4g63 Tri-State Post Whore Join Date: Nov 2005 Location: near west chester Member #1057 My Ride: 98' 4runner iTrader: (0)	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 __________________ Bill If you guys see a possum...try to kill it, it's not a pet!

06-09-2006, 12:53 AM	#4
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	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!! __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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06-08-2006, 08:13 PM	#3
olmytsi Tri-State Post Whore Join Date: Feb 2005 Location: Los Angeles Member #159 My Ride: 99 Lexus SC300 iTrader: (2)	How about doing a boost leak test?