Street, Track, Strip. doesnt seem to matter, I have a friend in a similar situ with these 35r turbos. He has done the same amount in the same time frame.
The feedback from the last turbo (which looks remarkably similar to the 35r from the sierra sierra nightmare) is that we are spooling the turbo too hard. Given the selection process i fail to see how. Garret claim the turbo is good for 2/5 litre engines, We're using a 3 litre. We are only using 23/24 lb of boost and the revs are limited at 7500 rpm.
Theres something not right with the 36r imo. wether its too much turbo for the cartridge size or something else I have no idea but there is too much evidence both real and anecdotal that it has a definite reliability problem when pushed a bit.
I am not going there again.