Re: Fuel pressure before the regulator
[Re: fast68plymouth]
#2822697
09/19/20 07:07 PM
09/19/20 07:07 PM
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Joined: Jan 2007
Posts: 8,043 Mt Morris Michigan
mopar dave
OP
master
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OP
master
Joined: Jan 2007
Posts: 8,043
Mt Morris Michigan
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If you look at the regulator on the inner fender, you will see another regulator which the fuel just runs thru. I tapped into the fitting there for my inside gauge thinking it would read pump pressure. Didn't see a problem doing it this way as if i ever go back to my Dominator, the regular is right there. I get it, with a return it will only have what ever pressure i set at carb.
Last edited by mopar dave; 09/19/20 07:09 PM.
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Re: Fuel pressure before the regulator
[Re: Dragula]
#2823368
09/21/20 05:00 PM
09/21/20 05:00 PM
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Joined: Jan 2007
Posts: 8,043 Mt Morris Michigan
mopar dave
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master
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OP
master
Joined: Jan 2007
Posts: 8,043
Mt Morris Michigan
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Thinking it’s time to retire my old SX fuel pump. Looking at a Magnafuel 275 and a 300.
Last edited by mopar dave; 09/21/20 05:59 PM.
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Re: Fuel pressure before the regulator
[Re: mopar dave]
#2823393
09/21/20 06:24 PM
09/21/20 06:24 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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Been running the Magna fuel 300 for many years and even on 1 plus hour drives and it's a great pump and no return needed, it returns directly back to the cell .......
Last edited by Thumperdart; 09/21/20 06:25 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Fuel pressure before the regulator
[Re: AndyF]
#2823539
09/22/20 09:12 AM
09/22/20 09:12 AM
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Joined: Jan 2003
Posts: 13,401 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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Posts: 13,401
Marion, South Carolina [><]
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I'd remove the regulator on the inner fender. Replace it with a union fitting and put the regulator back in a box on the shelf so if you go back to the Dominator you have it. Running two regulators in series like that is asking for problems. If you need a place to tap in for fuel pressure then use a union fitting with a 1/8 NPT port on the size. I run 20 psi to my fuel log.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Fuel pressure before the regulator
[Re: mopar dave]
#2823694
09/22/20 04:21 PM
09/22/20 04:21 PM
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Joined: Oct 2003
Posts: 11,686 W. Kentucky
justinp61
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I Live Here
Joined: Oct 2003
Posts: 11,686
W. Kentucky
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I read a bunch on reviews on the Magnafuel 275 that were not positive. Many leaking pumps or locked up. Mine locked up at the drag strip after about three years of street/strip use. I completely rebuilt it and after about six months it started leaking again so now it sits on the shelf. I'm not sure I'll ever use Magnafuel again. From what I understand the pumps are made here and the motors are made overseas.
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Re: Fuel pressure before the regulator
[Re: justinp61]
#2823702
09/22/20 04:49 PM
09/22/20 04:49 PM
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Joined: Jan 2003
Posts: 11,728 Portage,michigan
B3422W5
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I Live Here
Joined: Jan 2003
Posts: 11,728
Portage,michigan
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I have a Magnafuel 275 and have had issues with the seal on the shaft of the motor leaking. I had it mounted laying down so that may have an effect on it, although Magnafuels tech told me it could be mounted in any position. I got tired of replacing seals and took it off and put my old Holley Billet 150 back on. Yep, i have often wondered why people spend all that money on those, which i always hear tales of woe about. When a Holley black will easily satisfy the needs of 95% of the N/A street strip or bracket cars on the board, and are way cheaper and very, very rarely fail. I know they are plenty capable of supporting a high 9 sec 3350 pound car, using a T brake. Most foolish thing i have done( among many..lol) was getting talked into “ upgrading” my fuel system. I did, and didnt see a thousandth difference, except in my wallet.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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