1fast97gsx
20+ Year Contributor
- 4,517
- 17
- Jul 6, 2003
-
Orland Park,
Illinois
Last night I finally installed my 780 injectors so I decided to play with the boost. I turned it up to 19 - 20 and it was fine. Then I set the controller at 24 and floored it and the car still only ran 20 psi all the way across. ( I think it went to 1.35 bar .. but I had it set at 1.7 bar ) Anyways, I thought maybe I just need to reprogram the controller and reset it so I did. I went for a pass for it to learn the initial "base pressure" which should be 1.0 bar since that's the spring my tial 38mm has in it. Well I do the pass and the controller reads .85 bar. ( the guage seemed to be reading 14ish psi ) I just left the controller at 20 psi then and took the car home.
Today I did a boost leak test and got a VERY quiet hissing noise from between the throttle body and intake manifold. I couldn't track it down exactly, but I'm 90% sure that's where it's leaking from. The thing is the hissing was so quiet I literally had to put my ear down there and concentrate to hear it and I couldn't find anything else that was hissing. Could this really limit my boost this much? I can understand a LITTLE slower spoolup but not wanting to build any more boost is strange. Thoughts / Opinions?
Today I did a boost leak test and got a VERY quiet hissing noise from between the throttle body and intake manifold. I couldn't track it down exactly, but I'm 90% sure that's where it's leaking from. The thing is the hissing was so quiet I literally had to put my ear down there and concentrate to hear it and I couldn't find anything else that was hissing. Could this really limit my boost this much? I can understand a LITTLE slower spoolup but not wanting to build any more boost is strange. Thoughts / Opinions?
