80gus

I've purchased everything except regulator so far and am concerned I ordered fuel line that is to small for a turbo configuration, lift pump, twin 044, reg (still to decide) is an6. -6 feed to small for a 500-600 rwhp combo, who else uses -6 return less set?

Ping King

iTrader: (20)

-6 is good for your needs. People run that power levels on stock fuel lines.

runsfromdacops

I have twin 044 setup and its working well with -8 feed and a -6 return. If you only want 600whp id thinkabout a dfferant pump setup. I think thats way to much pump for the power goal.Mine will almost boil the fuel it gets so hot after a 30 min drive. But im after 1k rwhp on e85

stevieturbo

Something very badly wrong with yours then. I have a pair of 044's running all the time, same -8/-6 lines, and can easily drive for 4 hours straight with no issues.

80gus

thanks for the reply, i want to run the second pump on a hobs switch with a non retrn valve, reason for the 2 pumps, i once had a pump fail, and really screwed my weekend up,if i have a second pump in the line, i simply swap wires and keep racing.

stevieturbo

044's are ultra reliable. I really wouldnt ahve any concerns about them.


Although what you propose for a lift pump and then the 044's, may be a concern as far as reliability of the package goes.

runsfromdacops

I can drive for days on my 044s but I was jusy saying it heats the fuel up more then other smaller pumps will.they move a ton of fuel so its inevitable that the fuel will heat up.I

For your goals id just do a walbro 255hp intank and a 044 in line

80gus

the lift pump is a Facet works red top, i probably should explain what the set up is for. it's an offroad 4wd, the last ls1 conversion i did i used an in-tank walbro, worked great for a while, but when it let me down was a pain in the **** to replace i since said NO more in tank pumps. and the limitation of room means the surge tank is quiet a fair distance from the tank(not that that should make any difference)

stevieturbo

Walbros are very reliable, but of course they must be used on a correct environment. If your tank is badly designed and prone to allowing air to see the pump, then no normal efi pump will survive.

And again, depending on your configuration, make sure the surge tank is always kept full. ie ensure the 044 does not outflow whatever is feeding it.

Googling suggests the red top can supply in the region of 180 litres per hour. A Single 044 will flow roughly 300lph.

That is a setup that can never work safely or reliably.

80gus

Hmmm is there any way my engine can you use that amout at any 1 time, i thought that alot of the fuel getting moved by the 044 would be returned to the swirl pot via the reg. Not doubting you only questioning, i dont have a huge understanding of turbo fuel system needs.

stevieturbo

Returning the fuel from the engine/FPR to the swirl tank will obviously reduce the volume of fuel the lift pump needs to keep up with demand.

But once engine consumption exceeds the red tops flow, the swirl tank will start to empty.
and Facet only rate their pump for say 250hp, maybe at a push 300hp. So once you're engine is making 300hp, that swirl tank will be emptying.

IMO if you insist on doing it this way ( and I'm not saying there is anything wrong with it ), you'd be better with one of those FM/Carter pumps at circa 80/100gph flow. They arent expensive either.

That way too, you could return all fuel from the engine to the main tank which means less hot fuel getting recirculated into the small swirl tank. It also simplifies plumbing a little more.

This type of thing, although there are a few variations.

http://www.jegs.com/i/Carter/180/P46...oductId=748050

http://www.jegs.com/i/Carter/180/P4601HP/10002/-1

At 100gph, it will outflow a single 044 under all circumstances. Plus the bonus of always pressurising the swirl tank slightly, which again can only assist the flow ability of the 044.

80gus

ok thanks i wish i had ordered one of them now!

stevieturbo

The red top will not be safe for your application.

80gus

Steve really appreciating your help mate, thanks
Will this pump here work?

http://www.ebay.com.au/itm/Carter-Un...item416ef6f3ac

Another Question is there any regulator you can recommend?

stevieturbo

That is the same pump I linked to on Jegs.

Or this one is the cheaper low pressure version. As you're only using it as a lift pump, it doesnt need to create much pressure. Either would do really, hardly makes any odds. They're both claiming the same flow numbers

http://www.ebay.com.au/itm/Universal...#ht_619wt_1059

Regulators...really there are loads. Aeromotive, Fuealab, Magnafuel etc etc

I'm using the Magnafuel 9950-B. It's bigger than I need, but means I'll never need another one.

But there are various ones on ebay/aus

http://www.magnafuel.com/products/ef.../MP-9940-B.htm

http://www.ebay.com.au/itm/HOLLEY-12...ht_1875wt_1198

http://www.ebay.com.au/itm/AEROMOTIV...#ht_1289wt_825

http://www.ebay.com.au/itm/new-Aerom...#ht_2629wt_825

Or a second hand SX reg

http://www.ebay.com.au/itm/SX-EFI-FU...#ht_500wt_1076

80gus

Mate thank you once again, so all those regs can be used for returnless system. i like the idea of the sx unit, is there any importance to having the reg close to the rails?

stevieturbo

Now what exactly do you mean by returnless ?

All of those regulators are return style. If you are running a lift pump, swirl tank etc etc, then you must have a return in the system somewhere, unless you are electronically controlling the main engine pump to regulate pressure and flow...which I doubt you are.

80gus

just like a standard ls1 fuel system, only a supply line feeding the rails, have the regulator at the rear of the vechile, ie just after the 044 pumps. you still have a return from the reg to the swirl pot.
as apposed to an unregulated supply line to one side of the rail, and the reg on the other side.
Infact now i think about it, i think i could run any reg like that, so should be fine!!!

My goal is not to heat all the fuel upby sending it to the engine and back to the tank.

stevieturbo

Then you still have a return, just not local to the engine. But it is still a return system. Any of the regulators linked are suitable.

Ideally the reg would be close to the rails, but as long as you have sufficient flow to the engine so pressure is maintained, then you'll be fine.

The only negative with such a setup, is if it is a very hot engine bay, and fuel could boil in the rails after shutdown, hot starting and running may be harder until cool fuel makes its way up front.

80gus

Think i got that sorted, i made a seperate system water cooled fuel rails, and manifold protector, Turbo is pretty close!!