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AP gauges

3.8K views 4 replies 5 participants last post by  COBB  
#1 ·
I just installed my Cobb AP with FS Werks tune,.....HOLY CRAP!!! After I got that first drive out of the way I began to play with the gauges and realized I don't know what 90% off that stuff is. I'm running the boost and various temp gauges. I'm wondering what everyone else is running and any opinions what I should be looking for? I've got some learning to do so I can understand what I'm looking with the data the AP provides.
 
#2 ·
I've wondered the same things myself. Has anyone had their boost gauge on the cobb ap show a max +45psi reading?? I have to believe that's incorrect so is my ap a lemon? I'm running the Fswerks stage 1 93octane tune and yes, using 93 octane fuel.
 

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#3 ·
45 PSI absolute is only 30.3 PSI gauge pressure, which is slightly over the 20-25+ PSI gauge pressure that the stock turbocharger is capable of producing. Potential spikes of pressure with the throttle closed above that point may be possible.

The -15.7 is only 1 PSI of vacuum.