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Can anybody give any advise on goog fuel pumps I'm trying to go for alot of Hp so I was told to use two smaller pumps then one big pump any suggestions I'm going to be using 630cc injectors and 4 or 5 bar regulator?


cheers

The Bosch Motorsport pump is the one to go for, although the Walbro 255 is only £90 but needs modifying to fit.

would I be able to run two of these? or do you know what bhp it supports?

The std RS4 pump is good for 500bhp, and the Bosch Motorsport pumps at least twice the flow of the RS4 one, so I don't think you will be needing two of those puppies!

BTW, the B5 RS4 pump only flows 5litres per hour (roughly 5%) more than the S4 pump, so there is no real point in upgrading to an RS4 pump.

No you right wont need two if the flow rate is twice of a RS4 and it fits on the cradle (S4)?

Any body got the Bosch part number / description for the high flow pump? is it the black one?

Cheers

N

I think it is bosch 044 motorsport pump

it is the 044 - i just bought a new one from ebay for £150 delivered

Thanks chaps, does the 044 pump fit straight in to the S4 pump holder,is it the same size as the original, and does the original flat round filter fit on the bottom?

cheers

Nigel

I know it fits but with few minor changes (but don't know what hte changes are)

cheers

See 034motorsports site for what it looks like. You need the basket and strainer from an audi v8:
895 201 531 A
895 201 779 H

034 sold me the hardware kit (Porsche top nut, bayonet fitting etc. for ~$30)

Haven't fitted it yet though.

[quote="Nige_RS4"]The std RS4 pump is good for 500bhp, and the Bosch Motorsport pumps at least twice the flow of the RS4 one, so I don't think you will be needing two of those puppies!
[quote]

Would advise against two fuel pumps - reason being if you have one pump and it fails the engine stops - if you have two and one fails at high speed, you still get fuel but not enough and the engine runs too lean with possible big problems...

Stick to one good one..

R.

duncanhancox wrote:it is the 044 - i just bought a new one from ebay for £150 delivered

This one isn't black - it's silver oram I looking at the wrong 044 pump...

Or have I had too much

R.

Ok I have the 044 pump and v8 cradle and filter. (and the pump is silver!)

Has anyone actually fitted one of these, can you tell me how the pump goes into the cradle as it has a small filter on the top edge that gets in the way.

I have emailed 034 for a price on the top banjo and bayonet fitting.

Any help would be great

Thinkaotomotive will do all the fittings I used the Audi 200 cradle had to take a bit of the top of the cradle and dremal the in side to to get it to fit right.