View Full Version : High pitch, full spool

02-19-2009, 04:50 PM
I just noticed this driving back from my ski race. but when i get on it (WOT) i get a high pitch noise, and i dont think that it is the turbo because im still getting full spool (9PSI, its only stock, no mods) but the high pitch is gone when i let off. I do not hear the noise if im running 5 PSI. Any hints?

02-19-2009, 05:29 PM
Boost leak, or maybe the spool itself is rubbing with the turbo housing.

02-19-2009, 08:19 PM
could it be a very dirty air filter? getting robbed on MPG too..

02-19-2009, 08:21 PM
What is going on in here!?