Hi all I'm just about to start fitting the inside of my 3dr track car up and need some info/help with the fuel system setup.

I'm going to be running a 520bhp yb and my plan is to run -6 Teflon lined braided hoses through the car to a fuel cell in the boot with twin 044 pumps and swirl pot etc.

i want to know what else I need to run and also what size swirl pot and do I need to run any additional wiring from the front of the car to the boot when I run the wiring in? Also will I need a lift pump and any recommendations?

Cheers

 

Personally I would prefer to avoid two pumps and a lifter, on my new fuel cell we will have a low sump through the bottom of the car feeding a single pump that is good enough for 700bhp (mad sell them). You can then avoid one pump failing and Engine going lean.

Run a big 30 amp relay and good wire and a good Earth. On some relays you can wire the ecu to fuel pressure to save the engine. On my viper the ecu switches an Earth to turn on the pump.

 

So you would just have the one pump doing it all basically? What's the deal with the upgraded fuel pump looms you can buy from various people, how are they connected and are they any good?

 

Yes, just 1 pump.

The upgraded looms are standard fit but new and thicker wire. With a track car build you can make your own.

 

Ok thanks for the info. What's the pump you have mentioned that can handle 700 bhp

 

Dw350il Mark Shead can get them about 200 plus vat

 

http://www.deatschwerks.com/blog/dw3...k-outside-tank

 

Thanks for the advise.

If I decided on the 2 044 pumps would I need a separate lift pump as well to power the swirl pot?

 

Yes unless you can always flood the back of the 044’s without a lift and swirl.

 

Any suggestions on swirl pot size and make of lift pump?

 

Not from me I am afraid, I have been advised to use the one pump method. Neater, simple and less to go wrong and one pump can do it.

I think you can buy plenty of swirl pots from places like spec r, airtec or demon tweeks but I wouldn’t know where to start with the lift pump. In tank or out needs to be considered, correct tube size also needs to be considered.

 

Ok cheers for the info I will look into the single pump option.

 

I think the single pump option makes a great deal of sense. Neater, simpler, lighter. Yep definitely look into it

Must be a downside but i dont know what it could be...

 

Would you still need a swirl pot with the single pump?

 

i suppose that will depend on the tank rich

 

The one I am having done has something like a baked bean tin at the lowest point that Pokes out the floor of the car so even if down to the last tin full of petrol it has to be in the can (sump) that then feeds the single pump.

The sump is baffled to help hold the fuel in and the tank has anti flame stuff

If you have a swirl pot you will need a lift pump unless the fuel cell gravity feeds the swirl but I cannot see a reason to do that.

 

 

better plan that toby .i was going to go with a atl setup in mine but i dont think it has that sump feature which would probably leave me needing a swirl pot .or else just bolt one under the car and let the tank gravity feed it i suppose

 

Good idea that

 

im liking the look of those track control arms on the bench toby

 

Imo and this is what I will be using in my Cortina
1.5 litre pot feeding a 044 pump with -6 feed and return.
Holley blue pump feeding pot and the return feeding pot.

 

AG Motorsport do a similar one to the one Toby has had built, it does away with the need for lift pumps swirl pots etc, that what Andrew fitted in his focus's
I'm hoping to have one in my new race car.


Steve

 

Thats cool. Keeps it simple

 

If you're using the standard tank...then for hard track use yes you would need some form of surge/swirl tank.

If you're having a tank custom made...then if done right there should be no need for anything external
And like the above if you can have it made to suit an in-tank pump...even better as it keeps things neat and tidy. And the range of in-tank pumps for very cheapo money is huge ( or you can use any of the typical 044's in tank too )

If going down the road of an external surge tank...again, it can be handy/neat to buy one that runs an internal pump.
Nuke, Radium, China all make stuff

Or 034 make this one for an 044 which is pretty neat

https://store.034motorsport.com/full...fuel-pump.html

 

Pretty fancy looking one for the money

http://fitechefi.com/products/fuel-s...mand-center-2/

 

Thanks for the info guys. I will be running a cell in the boot and haven't bought it yet.

 

I run those on the front of mine with WRC hubs, come struts and bladed arb

 

I have on my escos, an in tank 023 to feed fuel pot under car 2ltr tank i think via oe filter, then from tank to a Deatswerks 350 pump/check valve to a billet 30micron filter unit, to rail all -6 apart from line to pot to 2nd pump which is -8, from rail turbosmart 1000 reg, from there back to fuel pot, and i have an overflow -4 from pot to oe tank

I run a Autodynamix loom for twin pump setup

2 pumps will be required if your using an oe tank of somesort

 

You can probably guess that mine is by MK Motorsport and I checked in with Mark Shead as to how to use the fuel pump, Mark said the single DW350 will be fine up to 700 or more bhp.

 

And ensure you have suitable filtration for whatever injectors you are using....some are very very fussy.

 

That is a good point I had not thought about, I will check the one on my current 044 is ok for the new one....Thanks

 

How do you find the DW350, Mark Shead said it is also quieter than the 044's

 

And of course flow.

Worth noting the little Sytec filters are crap unless it's a low flow/power setup.

And the mention of a "30 micron" filter above...the only place I've seen sell 30 micron are Torques...and I suspect that's more like 130micron the amount of dirt they let through.

In general, 40-100micron pre pump.

And 10microns or less post pump to protect injectors. But as said..some might be happy with a genuine 30-40 micron...some will die very fast at that.

I ran my own for years with only a 40 micron, although a reputable brand. A friend ran his with the Torques 30 micron...and killed the injectors in a matter of weeks. 2 sets actually !

Needless to say there is a proper filter in place post pump now.

 

what make filter do you recomend stevie

are you running at weston on saturaday week .i would love a look at your car

 

I would like to know aswell please Steve.
I have a what I think is a torques billet filter one for lift pump and one for feed to injectors.

I ran a bullet sytec one for a few years without issues on greens and greys but would value your opinion

cheers
Paul

 

Plan is to be there, yep. Should be a good day if its dry ( and they've smoothed out the runway lol )

I've used Aeromotive, Holley, Earls, and Nuke filters all with good success.

Some of Torques bodies do indeed use Aeromotive filters anyway, but their large body 30 micron stainless mesh unit didnt seem to and that was the ones the car had problems with.
Those filters do still remain on the car, but we fitted additional filters after the pumps to protect the injectors. ( Actually Nuke bodies but with Aeromotive microglass filters inside...again Nuke seem to make them the same inside as Aeromotive. )

Even on my own some 10 years ago I just ran a single 100 micron Aeromotive pre-pump and never had any issues, but I did change that a few years back for a 40 before each pump and then a 10 before the injectors although I never had any problems with the Siemens injectors I had been using.

Although I've changed my own pumps now to in-tank setup so they just have a usual filter sock on the pump which seems to be around 100micron and retained the 10 micron before the injectors ( Holley/Earls 260gph unit )

 

Search for Holley hydramat on YouTube that works really well. I has to fit one in a tank at work.

Stevie thanks for the filter info will have to check mine.

 

Hydramat is a cool product for sure..but bloody expensive, and seems it also has a service life. Probably far more than any of our cars will ever need...but even still it does have one.

 

 

In terms of filtration, I'm sure as a OEM Bosch filter they're great.

Although nowhere does it state its flow ability

A friend did use a filter of the same brand/design sold by Torques and even a pair of 044's couldnt push a lowly 4-500hp worth of fuel through it. However it was a different part number than that and Torques no longer sell the same filter.

So that one may be a lot better.