I want to know if any of you guys think this sounds like a turbo going bad or not.
I'm Stage 2 w/a 3" catted cobb TBE. I have 137k on my engine and turbo, but have an almost new transmission.
Over the last couple weeks, I've been hearing what sounds like a bearing going bad whenever I have the clutch engaged and am in the mid to lower RPM range and anywhere from light to hard on the throttle. It's really difficult to tell where it's coming from, but it sounds more in front of me than behind me (although I don't want to rule anything behind me out). Like it or not, the sound is now unavoidable and it seems like something is going to break soon.
Just this evening when I was on my way home from work I noticed some smoke coming from my hood scoop and when I looked down, my oil temp light was on. I removed the heat shield and observed smoke coming from somewhere just down stream of the visible (from the engine bay) downpipe. I noticed nothing coming from my turbo.
Additionally, something smells like it's overheating towards the front of the engine. Although it's probably unrelated, I didn't want to leave out any details.
The reason I am leaning towards the turbo is in part due to the fact that it has 137k on it and there are moving parts inside it that could be causing the sound. Now I'm not sure if it's possible, but could oil be leaking from within the turbo into the down pipe and cause the cat to steam out? There's a V Clamp seal between the catback and the DP, so I'm not sure how gas would get out of the exhaust at all.
Thanks for your help!