Fuel Pumps

[Tangles]

I have the 040, did exactly what choyda did to fit it. I was expecting it to be loud but it was only when priming. It makes a very noticable hissing sound outside the car

SAME

Very very happy, and only paid $185 for it brand new from a Ford dealer on ebay

had it direct wired to the battery feed (new fuses and all - I can take out a fuse hidden near my battery and the car wont start as no power goes to the fuel pump)

I made sure the Bosch 040 fuel pump was installed as low as possible inside the tank

Top value, no way was I going to use a) Walbro or b) second hand GTR pump

Edited May 15, 2006 by Tangles

[WazR32GTSt]

i have a walbro in my R32 gtst

can hear it at idle (with stereo off) and when priming

have had no issues with it, other than it pulls a lot of charge from the battery when priming

[Gav]

R32GTR (Z32) pump is 190 litres per hour at 12 volts and supports 420 bhp at standard pressure (ie; 36-38 psi).

R33GTR pump is 210 litres per hour at 12 volts and supports 460 bhp at standard pressure (ie; 36-38 psi).

If you run a relay and direct feed from the battery to the pump (ie; 13.8 volts) then add around 10% to the above.

cheers

PS, GTR pumps are only noisy if you don't install them correctly, use the rubber mounts and keep the pick off the floor of the tank.

As SK states above, direct power feed makes a substantial difference to flow and pressure. I fitted a Nismo GT-R pump, direct power feed and installed an HKS regulator. This is well and truely enough to support 680 cc injectors at 100% duty whilst still maintaining adequate rail pressure. A/F ratios sit at 11.5:1 with a peak power of 540 hp at the back wheels.

[bazr33]

Hi guys

I have a walbro fuel pump

Had it installed recently, alongside my hiflow turbo

as some ppl on here know about

I have 306hp at the wheels, no issues and pulls all the way to 7300

soon i will be getting injectors z32 afm and turbosmart regulator

get the fuel and air mixtures down abit.

Everything at the moment is close to maxing out.

But is running great, no noise or any dramas with the fuel pump.

[JET-32R]

i've got an R32 GTR fuel pump in my 32. Anyone know what they're good for in terms of rwkw's?

about 265-270rwkw and its maxed out

[mr_rbman]

about 265-270rwkw and its maxed out

mmmm, i might be pushing it then with my new mods and next tune, i'll see how it goes and go from there!

[silva33]

I used a Nismo 600hp fuel pump... direct fit into my R33 and was fantastic! never heard a peep out of it...

Highly recomended

[Duncan]

The walbro I had was running dangerously out of flow at high revs

[rice_me_up]

this is a great thread.

im noticing a trend: walbro pumps seem to shit themselves at high revs?

bosch seems the way to go.

any one else pick up on that?

thanks every one.

[bazr33]

i was going to put in a bosch 040 pump to start with, but when i pulled out my standard fuel pump, noticed that the bosch wouldnt of fit

and would of had to make a new bracket for it.

couldn't of been bothered with that.

walbros are pretty much a direct fit, and i used the filter off my standard fuel pump onto the walbro, haven't had any problems and have ran the car right down til it was empty.

Not sure if its true, but have heard that some bosch pumps dont like running when theres a quarter of a tank left.

Wouldn't of bothered me anyway.

And with the walbro i might run a direct relay to the battery to give it a consistent 12 volts.