Fuel System Help - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

tony xa · 06-10-2004, 06:44

I am looking at buying a new fuel system from petrol tank to the carby.
The engine will be 393 stroker with a 825 mighty demon carby on top in a XA coupe . Just wanting to know what systems you all use and have used to find some sort of direction to take. Thank you

xdclevo · 06-10-2004, 07:00

I fitted a 1/2 inch stainless pipe in my XD pick up in the tank. I then ran the 1/2 line through the filter and electric pump in the boot, and all the way to the regulator, and then duel lines to the carby. Simple, with enough fuel for nearly all set ups including racing.

tony xa · 06-10-2004, 07:10

Quote:

Originally Posted by xdclevo

I fitted a 1/2 inch stainless pipe in my XD pick up in the tank. I then ran the 1/2 line through the filter and electric pump in the boot, and all the way to the regulator, and then duel lines to the carby. Simple, with enough fuel for nearly all set ups including racing.

What sort of pump and regulator did you use

xdclevo · 06-10-2004, 07:22

Ive got a Holley Blue and the regulator that comes with it as a set. I dont run a return line and have it set at 6 pounds pressure. It has been going good since new in 2000. I have done about 20000 km.

9psi EB · 06-10-2004, 08:36

i've got the same setup, but running 7 pounds.
Holley pumps are quite noisy though, mines quite annoying.

brenx · 06-10-2004, 15:27

Guy's to quieten a Holley blue you need to put a piece of rubber under the mounting where it contacts the body of the car. When I ran a Holley blue I couldn't hear it.

I run 1/2" line from the tank to the fuel reg, 2 * 3/8th lines (1 to each fuel bowl). The pumps a Mallory 140 and regs the stock mallory reg.

Brenden

TTNOS8 · 06-10-2004, 20:45

Used to have stock V8 pickup (3/8") through a Holley Blue mounted outside the car, basically under the rear passenger seat, through 3/8" lines to a Holley Blue reg in the bay, single 3/8" line to 750DP, and another single (out of the reg-two outlets) to the nitrous.

That made 234rwkw on Hallam Performance dyno. But had fuel supply issues top end in 3rd and 4th (no nitrous

).

Upgraded a little (still doing more) to 1/2" pickup, 1/2" lines to Holley Black mounted in same position, 3/8" lines to High Flow Alcohol Holley Reg in the bay to a single 3/8" to 750DP.

This combo to date made 250rwkw again on Hallam Perfromance dyno, but still a few top end fuel issues to sort (fuel pressure gauge in cabin). Hopefully 5/8" pickup, to pump, 1/2" lines to reg, double 1/2" lines to carb should sort out the problems.

Oh, I usually run around the 6psi mark.

PS. like brenx says, if you rubber mount the Holley pumps at both the bracket and around the pump you will hardly hear it. Been there, done that

ClevoCapri · 06-11-2004, 01:22

I have a 378 clevo. 850dp Holley. I ran 1/2 inch fuel line from tank to a mallory fuel filter, then 1\2 inch to a mallory comp 140 pump, 1\2 inch line again to mallory regulator. The reg has two outlets so I have two 3\8 lines going to seperate fuel bowls. I have preasure at 8psi. If you can afford it a Barry Grant setup would be the go, very pricey. The Mallory pump supplies enough fuel for my needs!

xacoupe · 06-11-2004, 01:30

holley blue ... stock 5/16 fuel line ... regulator and a 750 Vs .. in theory it shouldn't pull the skin off warm custard but it does the job

xdclevo · 06-11-2004, 07:10

I too use the rubber strip supplied to quieten the noise. I also bought 4 small rubber mounts, with a 6 mm thread either side. I bolted these in my boot, then bolted the pump at the other end of the mounts. It is very quiet and does'nt vibrate through the car at all.