Ex-Finesse

I need to upgrade the fuel system in my escort to cope with new engine specs... and am just looking for advice as to what other people have done

What fuel pumps do people use, and is there any specific order in which items must be run?... like pump, filter, swirl pot, etc

Also, what size aeroquip hosing and fittings are most appropriate on an engine up to 300bhp.

Thanks

Rs1

iTrader: (1)

I'd imagine -6 would do the majority of it. 300hp wont take much of a fuel system imo, a lift pump and a single 044 will supply more than enough.
Couple of ways to pipe up but the easiest i reckon is lift-pre044 filter-044-filter-fuel rail-return-swirl pot-overflow to tank.

Rs1

iTrader: (1)

P.S. i believe Brom@ Zoo motorsport has fixings in stock

wes

If you have an escort cosworth the standard fuel system is suitable for 300bhp.

You can get 195 ltr/hr fuel pumps from the likes of Stu @ MSD or Mike Rainbird or Graham Goode Racing etc, that will supply enough fuel for 450+ bhp.

There is no need to change the fuel lines for 300bhp.

Ex-Finesse

Cheers for the info..

I thought the idea of the swirl pot was to remove any air within the system, so why would you have one as the fuel was about to return to the take?

Purely by logic I thought it'd have to be somewhere in the feed from the tank to the fuel rail...

Is the pump you suggested internal or external of the tank? I'd prefer external for simplicity, and keeping wires away from the tank - personal preference.

Thanks

Wes - It's a mk6 escort mate, startted life as a mental 1.6 spec Looking to re-do it all, lines inside the car etc, as it's being built up to a good track spec.

wes

Escort cossies have an internal fuel pump, the 195 ltr/hr item is a direct replacement for this, but you will still ge thte problem of fuel starvation when the fuel level is under 1/4 of a tank and you corner hard. The easiest solution for this is to never run less than 1/4 of a tank of fuel LOL

The swirl pot is used mainly on track / very fast road cars, when you hit long sweeping bends at 100+mph the fuel in the tank tends to move to one side of the tank (rectangular, short and wide), and potentially away from the the pickup point of the fuel pump, so you run lean and melt the engine if the bend is long enough and you are at max load.

The swirl pot is a cylinder (tall and narrow), so no matter what cornering forces it is under, the fuel can't move away from the pickup point of the fuel pump.

You would use the std fuel pump as a lift pump, which then feeds the swirl pot, which in turn feeds something like a bosch 044 pump (external), then into a fuel filter, then to the engine. The return from the FPR then goes back into the top of the swirl pot, and their will be a return fromt he swirl pot back to the fuel tank incase it gets too much fuel in it, the idea is to have enough fuel in the swirl pot that the 044 pump never gets starved of fuel.

wes

Bit of advise, use teflon lined fuel lines, the smell will make you sick otherwise, and you'll always think you have a fuel leak!

Ex-Finesse

Thanks for the explanation!! I had always assumed swirl pots were simply one item in the fuel feed, just to remove the air

Definitely need one for the escort though, as my orion suffered fuel surge a couple of times at Ford Fair this year... had well over half a tank too!

Of course.. the external pump mustn't outstrip the supply of the internal tank!!

Does anyone use a mechnical fuel pump?? Just a crazy idea I had after seeing the setup on an RS500 BTCC car!!

escort mk6

you shouldnt have too much of a problem ralph with a stronger external pump, as dont forget the return from the unused fuel also runs into the swirl pot, with an overflow back to the tank.
Are you having an in car tank? if not, as previously said fit a esc cos pump for a lifter

dangerous - reyland

This is my set up with an internal tank

i use dash 10 ptfe pipe to the lift pump, holley 110gph lift pump, dash 10 in & out of the swirl pot to 044 main pump, Then dash 6 ptfe to standard saff cos filter then to fuel rail.
out to aeromotive pressure reg then back to swirl pot.
swirl pot to tank

You need to make sure that the lift pump you choose is capable of keeping up with the main pump otherwise you can defeat the whole object on high speed runs

GARETH T

looks a complete setup too me

Ex-Finesse

Yes Ian it's going to be internal tank.

Dangerous - Thanks, looks an awesome setup too

Do these pumps just run constantly with the ignition on? Or is there anything to stop them whlist the engine isn't running...?

Just thinking back to a standard pump priming for just a few seconds as the ignition is engaged, before starting....

dangerous - reyland

Ryan made a loomfor the engine & added the fuel pumps for me at the same time

i have a master switch on the dash but it also takes an on/off from the ecu
that way they switch off

Ryan

indeed it does mike.

little custom mod that allows the ECU to run the pumps as standard but there is a master kill switch aswell.