Whenever I get into boost the car makes this weird very strange that sounds like something is squeaking or something I can't tell. I have been wracking my brain trying to diagnose this to no avail. Anyone have any ideas?



It happens only when i get into the throttle a bit more and boost builds over 3-5psi.

Help appreciated!

 

Check your turbo's for shaft play.

 

Did you figuered this one out? I have the exact same issue. I have not been able to work that much with my car the last few years but I'm going to get it running this spring.
Here is a clip from inside my car.
If you solved this, please get back to me!