Upgrading Fuel Bump

[DHe!seL]

am upgrading my fuel bump soon ... looking for a fuel bump with a rate of 550hp

can u plz share with me ur experince with fuel bumps ??

Bosch?, Walbro?, Japanese brands ?

which is better !?

NOTE: my car is gtst rb25 ... mods: intercooler, 13 psi of boost, full 3" ex, power fc.

all

[Craved]

why are you looking for a 550hp fuel pump?

what are your power goals, with 550cc injectors and a 044 im not even coming close to max duty with 290+ rwkw

you want internal or external pump? thinking most 550 hp pumps will be external..

[R31Nismoid]

you dont need a 550hp pump if thats all your mods are

a cheap bosch 910 or 984 will do the job

[Mr Italy!]

Pump buddy, Pump.

[silva33]

Nismo 600hp i believe is in mine... $400 direct fit..

[DHe!seL]

looking for an internal one >>>

well my power goal for now is getting the most of my car with these mods ...

i've heard the 044 and 040 are good one ...

BUT ...

what about walbro ?

[Craved]

there are plenty of threads giving flow rates of the walbro pumps at given voltages..

seems that walbro need higher voltages to match the sort of flow.

i wouldn't use one ever..

044 bosch is in tank. 044 is external..

[paulr33]

gtr33

direct fit

suit upto 300rwkw

cheap

loves it

[AlexCim]

Using an 040 in my car.

Its was $230 delivered + $60 to fit it.

Seems to do the job pretty well. The stagea tank is made in such a way that the pump sucks all the way until my little light comes on no worries.

can hear a buzz outside the car, nothing at all inside.

[Tangles]

Using an 040 in my car.

Its was $230 delivered + $60 to fit it.

Seems to do the job pretty well. The stagea tank is made in such a way that the pump sucks all the way until my little light comes on no worries.

can hear a buzz outside the car, nothing at all inside.

Agree.

I got my Bosch 040 for $190 delivered (ebay Alex, ebay!),

Had it installed as low down as possible, and also had a direct battery feed wired up, so it runs at 13.8V.

Perfect fuel pump, more than enough for your needs matey!

[R31Nismoid]

looking for an internal one >>>

well my power goal for now is getting the most of my car with these mods ...

i've heard the 044 and 040 are good one ...

Well your power goal is far more than an 040/044 needs to supply.

a Bosch 910/984 or a GTR item is all you need, no point putting in something bigger.

[ODessA]

how much does a gtr32 and 33 fuel pump differ ?

[wolverine]

Well your power goal is far more than an 040/044 needs to supply.

a Bosch 910/984 or a GTR item is all you need, no point putting in something bigger.

984 flows more than an 040

[BezerkR32]

Use Walbro intank pumps in customers skylines & pulsars with no problems. $310, easy to install. Suggest people dont comment on things their not sure about.

looking for an internal one >>>

well my power goal for now is getting the most of my car with these mods ...

i've heard the 044 and 040 are good one ...

BUT ...

what about walbro ?

[carl h]

walboro pumps overhere in the rb community are seen as dodgy pieces o crap, ive seen them melt, fail, and seize up.

not uncommon for a walboro to fail 1-2 years from original install date, i run a tomei r32 gtr pump in my personal car.

[R31Nismoid]

984 flows more than an 040

no it doesnt

[wolverine]

Bosch Fuel Pumps

nismoid read thru the bosch literature and let me know if the 6.5bar rating vs 5bar rating makes that much change to the flow rates.

[R31Nismoid]

apologies wolverine... getting confused between the numbers

good PDF

bezerkly, i personally have had issues with my walbro.

Correct power and everything was connected to it and it didnt get close to what it was "meant to" get to in terms of flow.

Swapped in the bosch external and i went from 13afr's down under 10's somewhere.

And i wasnt making big power at that stage, around 250rwkw

So personally for me i wouldnt use one again.

Its just being used as a lift pump now for my surge tank as there is no point throwing it out completly and wasting $$

[wolverine]

tis no problem nismoid, there seems to have been many posts with what appears to be the wrong flow rates that keep getting cut and pasted.

i chose the 984 as it has a hose end (which allows you to use the factory sock) and seems to flow somewhere between the 040 and the 044 (but is shorter than the 044 and there is only a bees wang in sneaking the pump under some plastic trim in the tank in an R33).

[mokompri]

ive been through the same dilemma regarding which flows more, the 040 or the 984. from resellers they say the 040 flows more..

differnet sources say different things. does anyone know why bosch rates the 040 at 6.5 bar where as the others are rated at only 5bar ??

ive seen figures floating around of 240L/hr @ 5bar but the accuracy of that figure is pretty sketchy it has nothing to back it up

the 040 also seems to eat up more current then the 984 as well

i ended up with the 040, to replace my genuine walbro which couldnt hold pressure on my sr20det..

Edited April 7, 2006 by mokompri