Hey guys, well two weekends ago I was out testing my jetta, which I recently put a AZZ in, I had a T-3 on it, however after several minutes of driving I lost all boost, then it I slowed down, and it cam back, then it disapeared again. I was only running 10psi, and when it cut off i assumed that it was just the turbo that had failed. So this week I purchased a junk yard K-24, with very minimal shaft play, and swaped the T-3 out. After putting the K-24 on I still am not seeing any boost. The turbo spins freely at idle, and it sounds like it wants to spool up, but its like it keeps venting its boost or something, it sounds almost like a siren, where it will spool, then drop, then spool, then drop.... I don't have any exhaust leaks pre turbo, and am not running an intercooler yet. I am not running any exhaust at the moment, and I am wondering if that could be affecting things ,although i can't see how it would.
I am simply wondering if anyone could suggest any areas to look for problems.
Thanks
1SlowVW