Quote:
Originally Posted by ttuner
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.
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What are you running for fuel with your setup?
So is that all you have is the two pumps in series then? I was told from Steve at Fuel-it that I should install an adjustable FPR with a return line if I want to use the stage 2 intank with an additional inline pump.
The setup I was currently running was the stock turbos and stock lpfp, upgraded Fuel-it lines from the tank to bluetooth ethanol sensor and TBI kit... I was running 100% E85 on that with no problem.
But now I have MMP Stage 3 turbos and PI on order, so I'm looking at fuel pump options that will still allow me to keep running 100% E85... I might just go full custom and ditch the in tank pump all together and run something like a Magnafuel or Fuelab pump, 1:1 FPR and a return line.
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2009 Z4 35i 6mt, SpeedTech 6266 Gen2 turbo kit, Tial WG, VRSF 7.5 race IC, ER charge pipe, Tial BOV, Radium Fuel cell w/ surge tank and twin Walbro 525 pumps, Radium FPR and return line, Bluetooth ethanol sensor, Phoenix intake manifold w/PI, JB4 tuner, PR coil packs, Custom oil cooler, ECS Radiator, Spec 3+clutch, Mfactory flywheel, single 3.5" into dual 3" exhaust, H&R springs, 19" TSW wheels, 235/19 & 275/19 RE11 tires