Fuel feed line size
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
Fuel feed line size 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?
TECH Enthusiast
Joined: Jan 2012
Posts: 622
Likes: 1
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
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
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.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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.
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.
TECH Enthusiast
Joined: Jan 2012
Posts: 622
Likes: 1
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
For your goals id just do a walbro 255hp intank and a 044 in line
Trending Topics
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
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)
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo 9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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)
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.
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
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.
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.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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.
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.
Last edited by stevieturbo; Dec 28, 2012 at 05:36 PM.
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
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?
Will this pump here work?
http://www.ebay.com.au/itm/Carter-Un...item416ef6f3ac
Another Question is there any regulator you can recommend?
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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
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
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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.
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.
Thread Starter
On The Tree
Joined: May 2010
Posts: 151
Likes: 3
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.
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.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
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.
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.
