E85 Lift And External Pumps

[Duncan]

So as I'm doing a bunch of work on the car, I thought I'd make sure it was e85 ready if I want to go that way in the future.

I currently have a teeny low pressure/high flow pump in the standard holder in the tank (nice and low) and a good old bosch 044 under a surge tank that sits under the rear sear outside the car. It's a great setup but AFAIK neither pump will survive if I run e85 through it.

What are people using for e85 safe lift pumps, and are there any external pumps similar in size to an 044 (so I don't have to stuff around with the setup too much)? I bought the big e85 walbro but it doesn't suit external use and is crazy big to use as the lift pump (who wants to warm and circulate that much fuel.....

Car only makes 310kw at high boost on e85 so it doesn't need 400kw+ pumps.

[Piggaz]

A walbro 460 will fit with another Nissan cradle intank. (I have one in the 33, not sure what/if there is a difference in the 32 with the different fuel tank setup).

Have a look at the Holley dominator 1800 for an external.

A bit more work, it will work and is quiet.

Talk to Unigroup about the specific cradle to use

[omnigear]

i only use half of the cradle for the 460 and use zip tie to hold down the pump in place.

[KiwiRS4T]

Walbro 255LPH 500HP External Fuel Pump GLS392 is ethanol rated

http://www.trademe.co.nz/motors/car-parts-accessories/performance/fuel-systems/auction-967861260.htm

According to NZEFI the Walbro in your tank (GSS341 and GSS342) is ethanol compatible ( I have run E10 though mine with no ill effects)

Check with Scotty - he will know and also has pumps at a good price.

[scotty nm35]

Walbro 255LPH 500HP External Fuel Pump GLS392 is ethanol rated

http://www.trademe.co.nz/motors/car-parts-accessories/performance/fuel-systems/auction-967861260.htm

According to NZEFI the Walbro in your tank (GSS341 and GSS342) is ethanol compatible ( I have run E10 though mine with no ill effects)

Check with Scotty - he will know and also has pumps at a good price.

My 255 twins are still going strong 6 years on in the Stagea, I guess I have proven they are long term safe.

[STATUS]

we run the same setup in our vk with no issues on ethanol. if your worried just add some VP M2 additive to each tank and you will be sweet.

[Piggaz]

^^

How much do you add per tank?

[gtr jet]

1 bottle (473ml) treats 205 Litres of fuel.

So 1 bottle wil do 3 tanks. $50 a bottle...

[R31 drift pig]

I am using a peirberg in tank lift pump (part number 721.088.62) direct fit into cradle, e85/methanol safe, into a surge and a 044.

044 will be fine with e85.

Edited October 26, 2015 by R31 drift pig

[iruvyouskyrine]

Flow rating of peirberg? (I know I'm lazy [emoji14])

[STATUS]

^^

How much do you add per tank?

30-50ml so about 10-15 tanks per bottle

http://www.vpracing.com.au/product/vp-m2c

[R31 drift pig]

Flow rating of peirberg? (I know I'm lazy [emoji14])

200 LPH at free flow, 130 @ 3.5 psi. About half what a single 044 does at full noise - mine will be 280 lph @ 65-70 psi.

Edited October 26, 2015 by R31 drift pig

[XKLABA]

A walbro 460 will fit with another Nissan cradle intank. (I have one in the 33, not sure what/if there is a difference in the 32 with the different fuel tank setup).

Have a look at the Holley dominator 1800 for an external.

A bit more work, it will work and is quiet.

Talk to Unigroup about the specific cradle to use

The 32 is different to the 33-34 setup, but that is the system I will be using once I purchase the 1800 dominator pump to replace my loud az fark Weldon pump, as I already have a Walbro 460 intank as a lift pump, was looking at Fuelab but have heard a few horror stories about them lately

Duncan, given it is the engine that primarily heats the fuel having a high flow intank lift pump circulating cool tank fuel through the surge tank can't be a bad thing, if the intank out flows the main pump then the engine return line can be plumbed back to the main tank so the surge tank is always full of the coolest fuel possible

[R31 drift pig]

The 32 is different to the 33-34 setup,

I should clarify I'm using the peirberg pump in a R33

[boxheadmr]

Hi, I have a nismo internal pump and a Bosch 044 external pump from a surge tank. I installed it after having fuel surge issues and it fixed them. I run e85 and am concerned about the longevity of the Bosch 044 pump.

I was wondering if it was possible to use the walbro e85 intank pump as an external pump as a replacement for the Bosch 044?

Edited June 15, 2016 by boxheadmr

[burn4005]

only if you mount it inside the surge tank.

[boxheadmr]

So you can't modify the internal infeed to take a an fitting and hose from the surge tank?

[boostn0199]

Hi, I have a nismo internal pump and a Bosch 044 external pump from a surge tank. I installed it after having fuel surge issues and it fixed them. I run e85 and am concerned about the longevity of the Bosch 044 pump.

I was wondering if it was possible to use the walbro e85 intank pump as an external pump as a replacement for the Bosch 044?

I run the exact same setup on e85 in my track car for past 5 years and both pumps the nismo and 044 are still alive and have never had a issue with them yet.

[Ben C34]

So you can't modify the internal infeed to take a an fitting and hose from the surge tank?

I can't see how you could.

[boxheadmr]

The bosch 044s are not really e85 tolerant. I have probably had my set up for similar time but i am concerned about if others have had failures with genuine ones due to e85 then it might be only a matter of time.