Fuel Pumps

[Deluxe]

looking at buying a fuel pump in the next few days and cant decide whether to get the Walbro 255L/Hr or the Bosch 040, obviously i still want to have a in tank pump and just wondering what your thoughts are and/or experiences!

Cheers

Darren

[Maxx]

some said the bosch are noisy but some say no

had a high flow GTR fuel pump in S15 and it's same as stock but flow a lot more

[Sambo33]

hey Darren. the bosch pump has worked great for me so far. i know Nightcrawler has had some problems with the 040, though. then again i have heard bad things about the walbro aswell. do a search in 'forced induction performance' too, there are quite a few fuel-pump threads that mention these two pumps.

[skyline]

Darren,

I have had a bosch o40 or 044( cant remember) for many years now ( in fact martin d did an artical in hpi on how to do a in tank fit using our car as guinea pig for fit / photo's_at tilbrook's ).These are quite good pumps, we have had no trouble however they are on the noisy side with no music pumin!

Regards,

SKYLINE (Kym)... B)

Edited November 23, 2005 by skyline

[Deluxe]

Cheers guys just read the forced induction section and it seems they are quite similar in performance whilst the Walbro is some $60 cheaper and the bosch 040 can have some issues with fittment(eg the 1/4 tank which could cause surging issues). Cheers Kym might have to find that HPI Mag as i will be doing it DIY styles.

[Race__24]

There is a tutorial somewhere, i'll go look

[Race__24]

HERE it is

It's not for that exact pump but it tells you how to get it out

Edited November 23, 2005 by Race__24

[jmac]

hey, the "1/4 tank" problem with the 040 is due to incorrect fitting of the pump in the first place, nothing to do with the pump itself.

sydneykid is not a fan of walbro pumps (which is enough for me, to be honest) and another guy i spoke to who has an escort race car said "nothing but bosch". you should be able to pick up an 040 for about $220-230 or less.

how much power are you planning on making? the 040 will be fine up a point but you might need something bigger. but then don't go for overkill or you get noise and overheated fuel (depending on your setup)...

cheers

[Deluxe]

Yeh the 040's are about $235 delivered where as Walbro are $175 delivered, yeh i was originally more keener on the 040 after hearing about issues with the Walbro, but now they seem to be quite similar, Thinking i might have to spend the extra cash and get the better quality one(040).

After AFM and a FC retune should be up around the 210-220kw mark which i will be happy with for a while.

[DriftR_33]

i got my 040 from Greddy in the Trader section for 230 delivered, came all the way from great brittan.

i heard about that surging problem, on the bottom of the 040 there seems to be no nozle to connect that pick up hose thingy?? as all the other pumps habve them that maybe be the problem. i DUNNO really.

havent fitted it yet coz im a slack bastard

[Nightcrawler]

I took out my Bosch 040 that was noisy as hell (especially when you have below 1/4 tank or the weather is over 30 degrees) and put in a Walbro 255lph. Have had the car dynoed with both pumps and power is the same, at the same fuel rail pressure. I had the Walbro rechecked just the other week, after hearing disparaging comments from some SAU users, but Turbo Tune said the pump gave 'more than enough' fuel pressure for 200rwkw through 4 x 550cc injectors. They could not fault the pump whatsoever, yet I did have a 4 month old Bosch 040 fail year back.

Edit: Like DriftR says, the oem style mesh pickup of the Walbro is far more reassuring than the Bosch pump setup - the Bosch has no filtering and the pickup is not as low down (which could explain people's surging problems).

Edited November 23, 2005 by Nightcrawler

[Tangles]

Having an 040 installed right at the moment (with z32 afm, fpr, fuel lines, sitc, direct battery feed to fuel pump, etc yadayadayada), and retuned on the safc.

Hopefully pick it up tonight...

Yah, have read that Walbro isnt that great but is serviceable, big thing there is the amount of cheap chinese copy Walbro pumps that are out there. Nasty stuff apparently. Read a lot about that. But also read genuine items flow like a 040.

With the 040, you must install it as low down in the tank as possible, to get around that 1/4tank surge 'feature'. Due to the pump not having a 'sock' like the 918-series. Install low down with a custom bracket, and that wont be a problem.

I got my Bosch 040 off ebay (victoria, fordefi) for $198 delivered, with 12month warranty.

[Ronin]

Ive got a 040 in my r32, had it installed at boostworx and i cant hear it at all unless i actually listen for it, its not noisy at all.. Fixed my leaning out probs too.

[Jase]

Or you could go for the Nismo or Tomei intank fuel pump upgrade

a bit more expensive than the 040 or Walbro ones tho

[Tangles]

FYI the 040 is now installed in my Stagea, only noisy on startup, cant really hear it at all. For the money and the good name to the brand, go the Bosch.......

[Bl4cK32]

I got my 044 installe din the 32 by Shaun. Cant hear it at all, excpet on hot days it gets a little noisy.

Turbo Tune said the pump gave 'more than enough' fuel pressure for 200rwkw through 4 x 550cc injectors.

<{POST_SNAPBACK}>

Id expect them to say something like that regarding a skyline

[-explode-]

I needed to get a new fuel pump after I did a SR20DET conversion in my Silvia, and went for the Bosch 040. It makes a buzzing noise every 5 seconds or so on idle usually, but can't usually hear it much when driving normally. As others have said though, it's almost constant noise when you are low on fuel. Doesn't bother me, I just don't pay attention to it.

[Sambo33]

I got my 044 installe din the 32 by Shaun. Cant hear it at all, excpet on hot days it gets a little noisy.

<{POST_SNAPBACK}>

same with mine too. shaun installed it, and it never makes a sound. except yesterday when the weather was warmer than usual, i could hear it.. why is that?

[Nightcrawler]

When the weather is warmer your fuel is warmer. When the fuel is warm it expands. When the fuel is warm/expanded the pump has to work harder to pump the same volume of fuel, compared to a cold day when the fuel is more dense. The pump working harder is the noise you hear.

When I had my 040, on any day when my car had been out in the sun for a while and the temp was over 30 degrees, the buzzing noise was horrible.

[Sambo33]

i could only hear it at ilde though, once i was up going i couldnt notice it.