I wanted to ask what other 996tt evo gt700 out their are making for boost. I only make .9 bar. Evo sais i should make 1.4-1.5 bar and i have a boost leak. I had the car checked for any leaks and it does not apear to have any leaks. My boost gage is correct. Evo sais i still might be one of the vacum lines on the deverter valves. It is not throwing any codes and it runs fine just missing 80- 100 Hp.

Any ideas and what other gt700 owner have expierenced will be much appreciated.

Thanks Scott

 

I've had hoses that blew off to the point my car only ran .7 and .8, in that case i heard a obvious sound that indicated there was something wrong. When you are on WOT, can you hear a swooshing of air?

 

What are you pressurizing the system when you are checking for boost leaks? I have heard even though most test it at a normal psi 15-20psi, true leaks can be found if you pressure the system to like 30+psi…

 

indeed you ned to test at the turbos at 30 psi.