After the rewire of my fuelpump wiring, it was deemed a relaible upgrade to fit an 044 "Group A" fuel pump

quick guide


Remove old manky fuel pump cradle







Assemble new pump and filter in a refurbished cradle







After struggleing and loosing about half a litre of fuel, it was decided to remove the pump from the cradle and put it onto the tank and refit the pump back into the cradle once connected to the tank





Bolt up new parts in old parts places remembering to use stainless nuts for ease of removal in the future





Route the brand new pump to filter line (this is assuming you have had one made) and tighten the banjo fitting on the pump, and the elbow fitting on the filter





Neaten up wires with cable ties and if you desire, support the stainless braided fuel line






Before starting the car, prime the pump a few times by switching on and off the ignition, then start the car



Stand back and listen to a nice buzzing fuel pump

 

Nice one gracey, im just about to pop one on mine, so the tip about connecting to the new pump before lifting up the cradle will no doubt be useful

 

and it will save you burtsting into flames too should there be any naked lights nearby

 

Nice job

Did you make up the braided pipe,if not where did you buy it m8?

Fitted 044 pump to mine,just got to tackle the wiring
My pump/filter are in a Merc cradle


Think that rust around where your spring sits on the chassis could do with looking at m8

 

I wont be naked as im fitting it, and even if i was, im still not light

 

Mine will be getting fitted this week also

 

sorted mine out yesterday too

 

Andy - tut tut.

Proper -10 fitting on the pump end please

 

got the braided from Huddersfield Hydraulics - took my cradle, pump and filter down, told him what i wanted and came away Ł20 lighter with a nice hose

the rust on the springcups isn't anything serious - i've looked at it when i was under the car and its solid underthere still

 

Seems like the Scandianvian climate is a bit more forgiving when it comes to rusting.

Here's mine, never bothered painting it.



Graceland, you could be mistaken for IMA with that "set yourself on fire DIY-style".

 

fitting it to the tank end was doing my nut in so gave up in the end and couldn't be arsed to weld a -10 to the tank

 

I did mine last year, the day before Central day. Boy did the car overfuel that day

Big thanks to Lee R21 for sorting the pump out & the Aeroquip fitting kit

Nice mint Cradle that came off the car , all greased up


One nice 044 pump ready for fitted

 

I told you what to do.....you ignored me as usual!!!!

 

Hose looks good,can't go wrong for Ł20

Keep a close eye on the rust,thats the main area of rot which brings so many saph's to be broken for parts

 

gunna sound silly but, does it matter where you fit the pump and filter?
i wanna fit mine vertically and above the tank.
ive got a bracket from lee at fusion where the filter and pump bolt up next to each other but the best place for me to fit it is vertically above the tank, is this ok? i guess the pump will suck the petrol out and isnt gravity fed??

 

Pretty sure cosworth fuel pump IS gravity fed m8

 

Whats the benefit of the 044 pump over the standard one , is it higher pressure or flow ?

 

so i gotta fit it below the tank

 

sorry if you dont mind me buttin in lol ....
wat is the part number for a Group A fuel pump
Cheers RST

 

Anyone ???

 

flows more fuel per minute than the standard one

 

Its capable of maintaining a higher flow rate at any given pressure.

On big BHP engines, the standard pump wont cope and you will run lean and melt someone.

 

Many thanks gents !!

 

Nice work Gracington

Sticky... putting a bigger pump on cannot make your car overfuel as the pressure regulator will maintain the same pressure at the injectors.

 

can any1 else conform that i can/cant fit the pump above the tank?

 

Well it could if your car had been setup on a pump that wasnt up to the job and was losing pressure during long injector duty cycles surely?

 

Only if you use a lift pump and swirl pot mate, an 044 needs to be gravity fed.

 

i was thinking of running a swirl pot but i was told that as i have a 'D' shaped tank filled with foam that i dont need one.
and i dunno if i have enough space for one

 

have to be pretty fooked to do that i'd have thought, the pump just supplies a constant flow, the regulator decides what the injectors see doesn't it?

only would be a problem if the pump loses voltage under load i reckon ??

 

no you can't.

 

The flow that pump provides is inversely and non linearly proportional to the amount of resistance present in the system

 

yeah but an injector will only supply an amount of fuel dependant upon injector open time and the pressure within the rail, which is controlled by the reg, so if the car runs fine on standard pump with reg set to 3.0bar, then it will run the same with no adjustments to the regulator but with 044 pump ??

 

I give that cradle 1 week before its rusty as fook again lol

Whenever i change pumps i always do it with low fuel in the tank and then drain whats left 1st or just bung a spare piece of pipe with a bung in it onto the tank.

 

Not if due to the amount of petrol leaking out of the system via the injectors being open the fuel pressure is acutally dropping slightly lower than 3.0 bar becaues you have maxed out the flow on the pump, therefore when mapping it you end up with the injectors needing to be open longer to get the same amount of fuel in.
Then you fit the new pump which now maintains the pressure like the old one should have done and bingo you end up running richer.


Pretty unlikely set of circumstances really, but just saying its possible, the regulator doesnt have complete control over the pressure, as all it can do is limit the fuel returned, if the pump flow has been used by the injectors, there is no fuel to return anyway!

 

That was my actual point.
If the car had a decent chip, it would run lean if teh pump started to lean her off. When you then fix the problem theres no way it would run rich, it would just run right again, unless someone had actually mapped AROUND a failing fuel pump, which is bloody unlikely obviously.

 

Stu, you of all people should realise to NEVER underestimate the power of human stupidity

 

will the o44 pump go on a series 2? rs turbo?

 

It will go on anything with a fuel tank providing its gravity fed and installed correctly and you have an appropriate regulator etc.

 

sweet, cheers dude

 

this was my mistake - half a tank of optimax, now one litre less