sorry for not replying and thanks for the replies I did get.

It does not sound quite like that skyline, although it does kinda sound like a true compressor stall, but it happens very rapidly and gets worse as the boost pressure rises. I found 2 cracks in my turbine housing so its being sent to blaast for a warranty claim, since the crack was pretty bad, I found it less than a month after getting it back from the "rebuild".
blaast didnt think this would cause any problems and say's its "normal" which it may very well be but I'm just wondering if any of you have seen theese cracks before and/or would it cause me funny boost issues?

 

ive seen small hairline cracks on old turbos that are normal and dont cause any problems but yours look pretty bad but im not a turbo expert

 

it looks like it gets bigger as it ascends into the throat of the turbine housing

 

It can't help..

 

Cracks start forming in turbine housings after they get a few miles on them. It's really common.

I doubt that's what is causing your problem.

 

im willing to bet its the ghetto mbc

 

He posts pictures of some irrelevant ----, but not the pictures I asked for. He's just wasting everyone's time.