E85 On Rb25 With Deatschwerks Pump?

[midnight]

just a quick questions, going e85 so wondering if a single intank deatschwerks 300lph fuel pump be suitable for runnings e85 on rb25det with 3076, 880cc inj?

Edited November 25, 2011 by midnight

[OoskylineoO]

there e85 compatible

[midnight]

yeah im more so worried about if it will be able to provide enough fuel for the setup

[OoskylineoO]

have a look at the flow chart 4 them on GCG website..they can flow ALOT more depending on how much voltage you run through them.

Edited November 25, 2011 by OoskylineoO

[Jap_star]

should be no dramas

[zebra]

If In doubt, Walbro has not long released a 400lph in-tank pump

Cheap out of the US atm too....even me mith my attitude of the 255lph walbro's must die

I will grab one of the 400lph pumps

[Legionnaire]

Google around, these deatschwerk pumps have shown some pretty good results on EVOs running E85.

Found this, precision 6262, 4x1500cc injectors, 624 American whp.

At 33 psi, hey. It's like what, 75-80psi at the pump?

[scotty nm35]

Depends on the base pressure. I run over 30psi with twin Walbro's on eflex with bosch 1000's. I dropped my base pressure to 35psi so it now only runs around 65psi at the top end. Keep your pressures as low as possible imo.

The only issue I have with the higher flowing fuel pumps (deatschwerks etc) is the current draw seems to go up exponentially with flow, to double the current the Walbro needs. Make sure you run good power cable with a high current relay install.

[Legionnaire]

Current draw should be kept in check, that's for sure. However I wouldn't say it grows exponentially, it does go up with more fuel pressure and voltage supply, but in more like a linear manner. Power cables, relay and alternator capability should be all considered.

Scotty nm35, I think there is something to be said for both high and low fuel pressures. High pressures can make injectors with lower nominal cc/min flow useful, generally give better spray pattern and fuel atomization, resulting in lower fuel consumption and better ltr/bhp ratios, but make injector coils work harder, increasing their latency and making them heat up faster in powered up state, make pump work harder, increasing its power requirements and noise and heating up fuel. On the other hand, lower fuel pressures can really make use of larger injectors working at relatively high duty cycles, super-high-pressure-and-high-volume expensive fuel pump is not necessary, but you have to be really clever about injector spray direction and shape in order to keep fuel consumption reasonable and avoid bore washing.