I made a 2,147 miles journey. The last 900 or so miles was up and down steep mountains. I had never driven this terrain, and didn't know that I should have been down-shifting. My car started to make a sort of "ticking" noise about 250 miles from my destination. I took off the TID, and made sure it wasn't the compressor wheel. It definitely sounded as though it were coming from the turbo. Is it possibly the exhaust wheel? Perhaps I overheatedit or warped it from the super hot exhaust temps?? Wouldn't the rear turbine affect the front, though?

 

Check your plugs. You maybe hearing a ping sound under boost....

 

Going up mountains in 5th gear...low RPM and high load(boost), sounds very plausible to me.

 

Yeah... "haha"... I've just never driven this type of terrain. I feel that I really may have fucked my car up. :-/ Going to check the plugs today.