Thread: Single Turbo Z4
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      03-18-2017, 01:29 PM   #6
Eracer76
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Drives: 2009 E89 Z4 35i
Join Date: Nov 2011
Location: IL

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Quote:
Originally Posted by ttuner View Post
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.
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

Last edited by Eracer76; 09-11-2017 at 12:49 PM..
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