I have had the problem with boost problems at WOT. You can't notice it in 2nd gear but 3rd and 4th gear hard pulls you can feel and see it above 5300 rpms. The boost gauge goes from 12.5 down to 9.5-10 after 5300 rpms. You can feel it easily because you stop to accelerate and forced to shift to next gear.


Has anyone experienced this issue or know what could cause this?


All done to the car is CAI. Just got in a ZZP 3" CAI to see if it fixes the issue.

 

check ur intercooler pump and check the belt and boost bypass solenoid

 

I will do that, the belt is still in very good condition...checked it the other day. only 65000 miles on car.

 

On Another note.. I know there are known issues with the intercooler pump, is this a known sign of the problem I am having?

 

just checked belt, no cracks really good condition, how can I check the BBS?

 

bump, really need help on this before I upgrade to stage 3...

 

Ok I think I fixed the problem just put on new ZZP 3" CAI and shes running alot better.


I think the old cheap filter/intake was restricting the supercharger.

I did a 2nd gear pull and saw almost 15psi at WOT is this normal? I thought stock pulley was limited to 12.5.

 

If you're seeing more than 12psi on a stock set-up, your catalytic converter is probably clogged and needs to be replaced.

 

Hmm you are probably right, after driving my car for a while esp in the heat I can hear a ticking sound in my cat..

I will check the cat. Thanks

 

a ticking noise in the exhaust is normal mine does it every time I drive it and I have no driveability issues

 

Yea I have that ticking noise after I drive mine too. I guess she's just cooling down