Hello guys,
I have a RB20DET with high-flowd T3/T4 with VL exhaust side, 600hp bosch fuel pump, EMS stinger3 ECU, O2 Rush pod, Turbosmart dual stage boost controler. Ok, now the problem or fact is.. wen i rev up the boost kicks in @ 4500 RPM and ends around 600 RPM at 9psi.. Why is that? and also @ 15PSI it hols the boost abit longer, around 6500 RPM...
Guys could you make some comments on this as i am getting furious about this matter and im thinking to go for a Garrett GT30 or GT35 as they are BB....
I appreciate that...
Babak.