I cant say that I have ever seen this kind of spoolup with this kind of top end potential. This is a track car with a Buschur Racing 2.3 liter @ 10:1 compression. The turbo is the new Borg Warner on a Full Race manifold with dual Tial wastegates. AEM EMS and E-85 on 1600cc RC Engineering injectors tuned by Scot Gray here.
Running the car at different boost levels. Robert Fuller (RobiSpec) does the track prep and coaching on this EVO 8 and was was looking for something in the 500 whp range to keep the car somewhat driveable on a road course for his customer. Scot could not get the car to run below 18 psi so 524 is the lowest hp there can be.