Horsepower Freaks high compression turbo E46 M3 track car spins to 9000 RPM and hits 778 wheel horsepower at 18 psiOur previous low compression / Precision 71 turbo powerband in the track M3 took nearly 2 seconds to get back to full power after exiting a turn. Even with that issue, the car was still extremely fast because it had enough power to make up for it. Now we have the best of both worlds with instantaneous power all the time. We're running a smaller 6766 turbo with a high compression 9,000rpm rev limit motor and we're running even more power than we used to. Here's a dyno of the car to 9,000rpm and a short clip of it on the street. For comparisons, I overlaid this dyno with the HPF stage 1 powerband on race fuel.
This article was originally published in forum thread: HPF Track M3 - 778rwhp @ 18psi Video (9,000rpm dyno) started by HPF Chris View original post