Hi all, I recently bought another skyline, an r34 gtt.. it's been driving beautifully until tonight.
I was on the way home and gave it a bit of a squirt, nothing crazy, but a reasonable amount of go.. when I shifted and revs came down to 'normal', there was quite an audible pop.
Following the pop, for the next 5 minutes home, under any acceleration there was a high pitched whine from the engine bay.
I didn't hammer it after this as I was bloody scared (I still am) that something has gone horribly wrong, but the turbo seemed to be spooling up okay, although from my boost controller it seemed to be coming up a little slower than normal (ie, under minimal load it would sit around 0, now it was sitting around -5 if that makes sense).
When its light in the morning I'll check if any vacuum hoses have popped off.. seriously hoping that is all this is?
What else could it be? Although I know it most likely is.. please don't say dead / dying turbo... How much is a replacement going to cost me? -_-