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Electric Fuel pump recommendations #2862422
12/20/20 03:06 AM
12/20/20 03:06 AM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline OP
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Moparmal  Offline OP
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Melbourne.....Oz-land
Looking for recommendations on an external mount electric fuel pump.

Street/Strip car, low 11s, dual Edelbrock 500s. Carter 120 gph 4-12 psi ain’t cutting it.

1/2”lines, 3/8 pick up For what its worth.

9527E0CB-F5F4-428B-989B-04A641267905.jpeg

67 RO23 clone with 6.1 SRT Hemi and dual quads. Soon to have Drag Pak induction and Throttle body.
Re: Electric Fuel pump recommendations [Re: Moparmal] #2862425
12/20/20 03:58 AM
12/20/20 03:58 AM
Joined: Feb 2006
Posts: 604
TN
1DGEMAN Offline
mopar
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mopar

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TN
A friends Max wedge stick shift stock eliminator car went 10.50's with only 3/8 lines and a Holley blue pump. Why would you have 1/2 inch outlet and only 3/8 inlet? Depending on how hard your car leaves it is fighting that head pressure. Any fuel pump with an adjustable out put pressure of about 18 psi will work make your inlet at least 1/2. regulate the pressure at the carbs to no more than 6 psi. On my Stock eliminator car I have #10 inlet and #8 outlet pump regulated to 20psi with bypass and 3 psi at 6 pack carbs with 3/8 lines. Volume is more important than pressure. I run an Aeromotive pump.


Real Men shift for themselves
Re: Electric Fuel pump recommendations [Re: Moparmal] #2862428
12/20/20 05:28 AM
12/20/20 05:28 AM
Joined: Mar 2009
Posts: 2,457
Sydney,Australia
tex013 Offline
top fuel
tex013  Offline
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Sydney,Australia
Mal ,
That pump should be enough .
I went low 6.50s (1/8)with a silver Carter .
I do agree you may be needing a 1/2" pickup , unless you sump the tank . I would prefer a 1/ 2" or -10 outlet from tank when running 1/2" line .
I run Aeromotive A750 pump , have a Holley black(140) for spare .
Tex

Last edited by tex013; 12/20/20 05:31 AM.

New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Electric Fuel pump recommendations [Re: tex013] #2862505
12/20/20 12:56 PM
12/20/20 12:56 PM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline
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Taxes & Virus's R-US, NY
If you do decide to go all in and do it once, an Aeromotive A1000, and universal regulator...It requires a return line and some sizable supply line, but it can work with carbs or efi.....One and done...


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Electric Fuel pump recommendations [Re: Moparmal] #2862533
12/20/20 01:50 PM
12/20/20 01:50 PM
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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StealthWedge67 Offline
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Puyallup, WA
I would think that Anything that’ll move 120 gph should be plenty for the HP range you’re in. First thing I’d do is go to a 1/2” pickup. It’s a “weakest link” deal. I got one off ebay, worked great for me, although I’ve since gone to a cell.

More food for thought: a couple of years ago, I was running 1/2” hardline. All was well until one day when it wasn’t. I couldn’t figure it out.... eventually went to -8 braided line. Problem solved. Never did figure out WHY, but I haven’t had a problem since. I pressure tested the hardline I pulled, tested fine (????). I run a Carter 4600HP electric leading to a 4862 mechanical. Seems to be working for me, I see 5+ psi out the back door.

Last edited by StealthWedge67; 12/20/20 02:04 PM.

LemonWedge - Street heavy / Strip ready - 11.07 @ 120
Re: Electric Fuel pump recommendations [Re: Moparmal] #2862538
12/20/20 02:01 PM
12/20/20 02:01 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Posts: 43,007
Bend,OR USA
Magna fuel 275 up twocents
I used one of them on my old pump gas Duster that ran 9.993 at 134.8 MPH in the 1.4 mile weighing 3450 Lbs. with me in it corked up with the air cleaner on up
Make sure and follow their recommendations on the pre pump filter micron size, 80 micron or larger scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Electric Fuel pump recommendations [Re: Cab_Burge] #2862575
12/20/20 03:27 PM
12/20/20 03:27 PM
Joined: Oct 2008
Posts: 1,176
East Coast
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A/MP Offline
super stock
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East Coast
Lack of fuel on top end or the hit? Temporary fuel pressure gauge will help you out in diagnosing the problem. After that there are many simple things to do.

Re: Electric Fuel pump recommendations [Re: Moparmal] #2862577
12/20/20 03:36 PM
12/20/20 03:36 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Posts: 52,972
Romeo MI
I run a pair of Holley 140 pumps in parallel.. if one pump failed I can still run fine and I dont
pay the big money
wave

Re: Electric Fuel pump recommendations [Re: Moparmal] #2862580
12/20/20 03:53 PM
12/20/20 03:53 PM
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Posts: 30,947
Oregon
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AndyF Offline
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Oregon
Your engine is probably only using about 60 gph at WOT so you have some other problem than your fuel pump rating. Without looking at your system I don't know what the problem is but it might not be the fuel pump. A simple flow test should tell you how much flow you have and then you can work from there.

Re: Electric Fuel pump recommendations [Re: AndyF] #2862744
12/20/20 09:43 PM
12/20/20 09:43 PM
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Wichita
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GY3 Offline
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Wichita
We regularly run low 11's @ 3650 lbs. with nothing more than a Carter street/strip pump and 5/16" pickup and fuel line from tank to pump. The same one this originally slant 6 car was born with. The line from the pump to carb is 3/8"

Actually it's run 10.01 @ 133 with this setup but with a supplemental electric pump/tank on the ntrous solenoid.

Last edited by GY3; 12/22/20 11:30 AM.

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Electric Fuel pump recommendations [Re: Moparmal] #2862837
12/21/20 02:16 AM
12/21/20 02:16 AM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline OP
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Moparmal  Offline OP
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OK , Thanks for the info. I’m going to run a pressure test with a temporary pressure gauge and see what it shows.

Last edited by Moparmal; 12/21/20 11:02 PM.
Re: Electric Fuel pump recommendations [Re: Moparmal] #2862839
12/21/20 02:58 AM
12/21/20 02:58 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Volume is a lot more important than pressure, many things can cause low volume flow which can increase pressure work
I've seen motors that we could not jet up enough to slow the MPH down in the 1/4 mile due to to small needles and seats, which cause pressure on the gauge but not enough flow at WOT shock
I had one new Holley #9375 HP carb that came with one .110 needle and seat in the front fuel bowl and the rear was a .120 size, it ended up needing both to be .120 to get enough fuel volume into the front fuel bowls to be able to jet it rich enough to slow it down the 1/4 mile shruggy Murphy loves messing with us hot rodders and racers whiney rant


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Electric Fuel pump recommendations [Re: Cab_Burge] #2863166
12/21/20 11:01 PM
12/21/20 11:01 PM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline OP
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Moparmal  Offline OP
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Funny you should mention needles and seats - I had a light bulb moment last night - remembered when I bought the new carbs, I forgot to swap in the hi flow seats! Ive been running the .093th instead of .110th seats.....which has gotta not be helping! 🤦‍♂️🤦‍♂️🤦‍♂️

Last edited by Moparmal; 12/21/20 11:03 PM.
Re: Electric Fuel pump recommendations [Re: Moparmal] #2863261
12/22/20 10:27 AM
12/22/20 10:27 AM
Joined: Oct 2003
Posts: 11,678
W. Kentucky
justinp61 Offline
I Live Here
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Posts: 11,678
W. Kentucky
Is the car nosing over from lack of fuel? I wouldn't run any pump with a smaller suction side line than the pressure side, but there's more than one way to skin a cat I suppose.

Re: Electric Fuel pump recommendations [Re: justinp61] #2863285
12/22/20 11:16 AM
12/22/20 11:16 AM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline
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TonyS451  Offline
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Chicago, IL
I agree with the others that your current pump should be adequate for your combo, but if you do decide to upgrade, you cant go wrong with a Mallory 140 / holley black pump... if you want to make absolute sure you have enough pump to feed it.


2 kids and a dog
Re: Electric Fuel pump recommendations [Re: TonyS451] #2863494
12/22/20 06:18 PM
12/22/20 06:18 PM
Joined: Jan 2003
Posts: 580
Livermore, CA
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Dduster Offline
mopar
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mopar
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Posts: 580
Livermore, CA
Weldon 16120-A. It's amazing, You'll never 'not have' enough fuel. Install per recommendations and don't look back.

Re: Electric Fuel pump recommendations [Re: Moparmal] #2863499
12/22/20 06:25 PM
12/22/20 06:25 PM
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Posts: 30,947
Oregon
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AndyF Offline
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Oregon
I'd put the pump and pre-filter in the gas tank. Keeps it cool, quiets it down and gets rid of clutter under the car.

Re: Electric Fuel pump recommendations [Re: AndyF] #2867278
01/01/21 03:16 AM
01/01/21 03:16 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
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383man Offline
Too Many Posts
383man  Offline
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Posts: 27,421
Balt. Md
I just run 3/8 pick-up and line with the Holley Black pump. Has been fine running 10.70's best at 125. Ron







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