So rather than continuing the other thread, heres a new one. I already ordered the hybrid boost cojntroller from 3 Bar. I also have on order a boost gauge as well as line to route to cabin. So here's the deal. Who has installed one, and at what psi do I run into problems? I live in Denver, Co. We are at a higher elevation, thus the air is obviously thinner. Had a buddy with an S4 running 21 psi per turbo. Is it possible to run a bit more than the 12 psi people are saying is ok to run? Thanks

 

The higher elevation is an interesting problem. I think thinner air = more boost?

The MBC gives you boost variability so you can turn it up and down pretty easily and figure out what to run. Make sure you have the proper gauages before you buy a MBC though. The stock boost gauge does not cut it.

 

yes, redturbo is right. you need to install a boost guage. if you dont you will not know what you are boosting+danger to your engine.

 

I know the factory gauge is absolutely worthless. I ordered an Autometer unit and all the tubing. Also a air/fuel meter. We will see how it looks. Maybe I will put up a thread.

 

i veseen S4and A4 turbos glow bright red when they run over 20psi