Just dynoed my 2JZ-GTE Supra with the T76 a few days ago and no sign of compressor surge at all despite what all the calcs say. I can only assume that the surge line on the T76 map is shown higher up the airflow range then it really is.
I got 380rwkw at 19psi and I will install a Pierburg 1000hp fuel pump, bigger fuel lines and Bosch filter before turning boost up to 23-24 psi on pump gas. Should be good for 420-430rwkw then. The goal is 450rwkw at that boost level on pump gas and I have intercooler plumbing, custom intake manifold, 80mm throttle body and bigger exhaust pipes and downpipe mods yet to do, so hopefully I'll achieve that goal.
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