Nah man, that number can’t be right. I made 441 at 19psi with my car 3 years ago. I could easily have pushed that setup to well over 500 wheel if I ran something other than pump gas.
SR’s are stout. That same motor then went into Vlad’s drift car and lasted the last 2 years at about 400 wheel, drifting professionally.
Well done Radek and team, obviously a nice setup here.