So I finished putting the front end back together; new turbo and all.
The turbo was a used turbo with about 65k on it I got from some yard (just another little baby k03). I also did a coolant flush, oil change, New stern snub, and seafoamed the vac line.
I let it run at idle for a while and rev'd it a little to try to get the fluids flowing in the new turbo and everything seemed fine. Except the dv was significantly louder (it's a baileys, but never sounded like this) .
I decided to test drive it and that's where it all went down hill. Whenever I would get to about 3k it would start hesitating HARD, like literally jumping forward. Then it would boost super hard. The car feels faster than ever, but obviously there's a problem.
I don't even know where to begin... Cel is on, but it tends to be since I'm straight piped.