Weird sound when in boost

[elscotto80]

I have a BP motor which has been boosted for almost 2 years. I took out the a/c stuff since its busted and costs more to fix it than its worth. When I was done that, whenever I am in boost there is this high pitched squeel. Its kinda like what bearings sound like when they are about to break or what have you. There is no change in the power, or how the turbo acts, so I am pretty sure thats not it. I am really at a loss, its just a gay ass sound that annoys me, and I cant hear the wonderful sound of my turbo spooled. Motor is a BP with a VJ-20 turbo from a GTX.

 

[igdrasil]

sounds like a broken shaft. check them. It will pull as usual but will fail soon.

 

[elscotto80]

Broekn shaft??? I cant see that really, but who knows. Any one else have ideas?

 

[igdrasil]

yep, I think so, it happened to one of my friends turbo. One shaft was bent, eventually the assembly gets unbalanced thus the high pitched loud sound on boost.

Is it loud? If it is, take a look at the compressor blades, one or more could be bent. If the blades are fine, then the bearings are dead.

 

[elscotto80]

Hmmmmm. If it is this, I dont see how it could be related to me removing my a/c stuff cause it happened when I did that. But if not, then its just crap luck i guess.