i agree boost leek. how many heat cycles and how many miles do you have on the turbo. also remind me again the specs of the turbo
76mm
.96 A/R
9 pulls on monday, 40 miles on tuesday. Been parked since due to rain. I just went and took off the air filter and spun the turbo, it felt stiff. However, I started it and let it idle and it barely spun for quite a while. once it was up to temp it was spinning a little better.
Even still, I can't imagine that my 5.1L can't spool a single 76mm by 3,000 rpm. Unless I have a pretty decent coldside leak, but I looked it all over and don't see anything out of the ordinary.
Anyone have any thoughts or something to do to check part of the system.