2g throttle body boost leak, opinions needed.

[elementalwindx]

Me and my bud did a boost leak test and found a leak near or on the throttle body, and he found a page on vfaq that said its most likely the #7 o ring in the throttle body, how many other people think it would be something else or what? I'm booting 15psi on my T25 and it leaks back down to 10-13psi. Its the only leak we've seen on repeated tests. We also did the lil BOV dump tube hack and made it shorter, and recognized an actual 1-2psi change and it doesnt whistle as much as it use to thank god. But im bored chillin at campus and searching for opinions and answers from other people so feel free to spill here.

 

[GVTalon]

I've seen several posts with the same problem; a faulty seal on the TB. Replace the seal or better yet, upgrade to a 1G TB.

 

[GreddySpyder]

When you are saying you are boosting 15psi on your t25 and it leaks back down to 10-13psi, that is normal for the tiny T25. That turbo simply doesn't like to hold more than about 10 or 11 psi at high rpms. As for the throttle body leak, just go ahead and replace the gasket.

 

[elementalwindx]

Originally posted by GreddySpyder
When you are saying you are boosting 15psi on your t25 and it leaks back down to 10-13psi, that is normal for the tiny T25. That turbo simply doesn't like to hold more than about 10 or 11 psi at high rpms. As for the throttle body leak, just go ahead and replace the gasket.

the gasket or the #7 o ring? and isnt my 2g TB Elbow bigger than a 1g elbow. and even if the 1g is bigger, wouldnt I have to get more than that one elbow?