I have a fully stock 2006 ss/sc, and i had bought the car used from a dealership. I didn't know jack **** about this car nor how to read the boost gauge. After having my car for about a 7 months my boost gauge gave out, it was stuck on 20 on the vaccum side. So i brought it in to the dealer and had the warranty replace it. After that having replace i started thinking about how much psi i should really be pushing, so i started to ask around. Stock should be at 10-12 psi, but im tacking out at 2.5 psi wtf? Shouldn't the dealership have ran some type of diagnostics? Any help please?

 

take it back and have them look at it. boost bypass not working?? really bad belt slip?? but you would hear the belt

 

your pulley is to big.

 

lol to only have 2.5 psi it would have to be like 6"!!! if not bigger. (thats what she said) ha ha ha

 

haha you have a 5 inch pulley!!!