I've only noticed this a couple times. I'll be in 4th or 5th gear and go from mid throttle to WOT. When the car gets to what seems peak boost, I hear the normal air-getting-sucked-in noise turn into a clicking noise and the car seems to lose its pull. As a result, I always let off and besides that, car seems to drive fine. To give an idea of how the noise sounds like, it reminds me of compressor surge except more "clicky" and less "swooshy" haha. Any ideas? Perhaps just spiking more boost than can be handled by the turbo fins? Blah. Car is getting on my nerves with all its problems...

 

do you have a mbc?

 

I smell knock...

 

yeah I have a turbosmart MBC. i hope its not knock... I had my ecu dyno flashed by Al...

 

Your diverter valve/bov.

 

hook up the evoscan and see whats going on.......

 

I can't replicate the noise. It only happens on occassion