Quote:
Originally Posted by dwspen01
Can you elaborate more on your fueling system and stage 2 pump. I have a Z4 will a stage 2 Fuel-It in-tank pump and the Fuel-It Throttle Body Injection running E65 but am still running out of fuel above 6200 rpm with 20psi from Hexon RR600 twins and FBO (~550whp estimate). I know it is my lpfp that is not keeping up because I installed the 335i fuel line to the HPFP so that I could add a lpfp sensor and it is dropping to ~40psi above 6200 rpm.
|
i run a stage 2 fuel it pump with a separate inline pump to a motive PI rail.
i hit 606whp. TBI tops out at around 500whp. anything more than that and you'll want PI and will need another pump.