fuel pumps

[ashc]

wow - i know size isn\'t everything but i doubt i\'d get the bosch through the tank access port on the 200sx, maybe thats why nissan owners use walbros!

[Mr_7]

do you guys know the TRUE flow rate of the bosch 044 exteranl pump and the bosch 040 pump?

i require a base flow rate of 190ltr/hr @3bar, i have previously used an 044 on my cosworth and it was excellent, however i know i will also need to purchase a swirl pot therefore i considered the 040 internal pump to replace the OEM part in the tank.

Any help is apprecieated

[Ricco_04]

Well I was told that technicially the 040 is still an external pump to which I said I thought we used our\'s in tank? :3Confused

Standard pump is 210 l/hour IIRC not sure what the pressure is??

[AndyGen3]

I heard of lots of problems with Walbro Bosch aswell and my old fuel pump died on the rollers...

I put in a Syntec and am now getting over 4bar of pressure on WOT...

Not bad... Altho i have lots of wires coming from the fuel pump eletrics and if anything touches off them the pump dies.. And theres a live goin direct to the battery(which is in the bucket behind my seat) Anytime stuff in the boot hits it it dies... No major happenings yet tho.. Must get it looked at before it does happen tho...

[AndyGen3]

Heres a pic...

[sadgoth]

do you guys know the TRUE flow rate of the bosch 044 exteranl pump and the bosch 040 pump?

i require a base flow rate of 190ltr/hr @3bar, i have previously used an 044 on my cosworth and it was excellent, however i know i will also need to purchase a swirl pot therefore i considered the 040 internal pump to replace the OEM part in the tank.

Any help is apprecieated

There is a way of adapting the 044 to fit in-tank (this is the plan with mine)


From what I have been told, the Walbro has a problem with pressure tailing off at WOT (which you don\'t want) and its flow rate is nowhere near 255l at full WOT. I haven\'t run a Walbro so this is pure heresay, but I would go with whatever your tuner is happiest with.

[Ricco_04]

Thanks Andy - So a sudden failure of the pump will not cause an engine to fail then.

When I said I could only find one instance where a Walbro took a rotary\'s life was when the sock had fallen off the pump and sucked crud from the fuel tank which damaged the internals on the pump.  

So that puts us at 1 engine failure due to a Walbro 255l.  So unless this is like Sadgoth says about the capasity & pressure then I guess it was just one of those things you cant do anything about?

From what I have been told, the Walbro has a problem with pressure tailing off at WOT (which you don\'t want) and its flow rate is nowhere near 255l at full WOT. I haven\'t run a Walbro so this is pure heresay, but I would go with whatever your tuner is happiest with.

Thank you my good man - this is the info I was after! :god

[chrisJDM]

anyone used a Nippondenso Fuel Pump?? jsut im thinking of ordering one and wondered if they are any good?

[Grizzly]

I\'ve got a Apexi BNR in tank pump and i can\'t fault it, my Mate has one too and hes running a Big single turbo and some other Goodies (they work very well)

[dwarfslapper]

I\'ve got a Apexi BNR in tank pump and i can\'t fault it, my Mate has one too and hes running a Big single turbo and some other Goodies (they work very well)

I herd that they are a very good pump where did you get it from and how much?
thanks

[D1 WTF]

i pressume mine didnt die all together cause after the apex seal chipped i still drove it for a couple of miles slowly and it ran so it must def still work.  but when pip put it in another car he said the pressure dropped off, so it was def the pump which caused my engine to run lean and chip a seal.

[Grizzly]

I herd that they are a very good pump where did you get it from and how much?
thanks

I got mine from here http://www.rx7store.net/product_p/apexi%20gtr%20pump.htm

At the time i needed to get one quick so i went for the first place that had them in stock but if you shop about you can get them for a better Price than that.

I would recomend them Highly.