I have a 2.2 supercharged and Ever since I took the insulation off the hood I can hear a whistle thats high pitched and goes with rpms...its not loud..kinda sounds like a air leak or something and only does it around 2200-2800 rpm. It reminds me of a turbo spooling slowly or something. Just wondering what that is? I know its not a boost or vaccum leak as My readings are always 19-21psi vaccum and always hit 15.5PSI boost at WOT. Is it just a noise the s/c makes? It is def coming from the s/c.

 

supercharger whining.

 

yeahh ^_^

 

And air intake

 

just got my car back the other day after the blower being polished and new bearings and i can hear it pretty bad. i thought it was the belt at first.... so shouldnt be anything to worry about...

 

this is epic

 

i am guessing it is not the whine. mine is doing the same thing ever since i put my meth spacer in