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EFI fuel system
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Moderator   Joined: Mon Nov 15, 2010 5:58 pm Posts: 3906 Location: Henderson, Co 
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 EFI fuel systemOk Im about ready to start gathering my fuel system parts. I have a few questions for the guru's.
Im going to use the factory explorer fuel rails. But they don't fit the 351w width. So that means I need to cut off the cross over hoses on the back. Look to be a factory push lock style. Any idea what hose I need to replace that with? Im not going to switch tanks for now so I will be running a frame mounted pump(255lph) and was wondering if an accumulator was needed? I will be running a low pressure pump to feed said HP pump. Next is fuel Lines. Was thinking about 3/8 supply and 5/16 return? Or should I step down to 5/16 supply? I know 3/8" is way over kill. _________________ Rob 74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories. 04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine New project: 77 Bronco Ranger, body work and more body work. Very little left of a 72 durango tan explorer sport |
| Thu Oct 01, 2015 7:34 am |
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Official CCB Member   Joined: Thu Jan 22, 2015 1:46 am Posts: 405 Location: Greeley, CO
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Re: EFI fuel system What fuel tank (s?) do you have now?
I've seen the regular aftermarket 23 gallon main tank modified for the Explorer in tank pump, and before that the Mustang pump. _________________ "You say overkill like it's a bad thing." |
| Thu Oct 01, 2015 2:06 pm |
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Moderator Joined: Mon Nov 15, 2010 5:58 pm Posts: 3906 Location: Henderson, Co
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Re: EFI fuel system steel 23 gallon standard tank and stock aux tank.
_________________ Rob 74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories. 04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine New project: 77 Bronco Ranger, body work and more body work. Very little left of a 72 durango tan explorer sport |
| Thu Oct 01, 2015 7:28 pm |
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Official CCB Member Joined: Fri Jan 17, 2014 2:38 pm Posts: 151 Location: Pueblo, CO
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Re: EFI fuel system From what I have seen, you have the stock fuel line size correct for the explore. That is what I am planning on using with the explorer 5.0 when I get some time to work on it again.
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| Thu Oct 01, 2015 8:05 pm |
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Official CCB Member  Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: EFI fuel system No idea on the hoses. You do want an accumulator. It'll help prevent starvation. 5/16 is likely fine, but there isn't really a reason to not do 3/8, other than the ease of bending the tubing. Unless you're using the factory fuel fittings and need flared hard line. Those might be 5/16, but I'll let digger chime in on that.
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| Thu Oct 01, 2015 9:28 pm |
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Official CCB Member  Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: EFI fuel system I went 3/8 main and 5/16 return. That is what was originally on the Explorer. I have a bunch of leftover of each if you are interested. You can also rent the flaring tools.
_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274 |
| Thu Oct 01, 2015 9:40 pm |
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Official CCB Member  Joined: Fri Jun 21, 2013 8:53 pm Posts: 1276
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Re: EFI fuel system I have flare tools for 3/8th and 5/16th fuel push-to-connects.
I ran 3/8th send, 5/16th return, used factory regulator and filter. _________________ Cummins R2.8 diesel, ZF5, AtlasII, HP44/BB9, ARBs, coiled / linked suspension, 37" KO2s, full cage, bumpers, etc. Build Thread: Average 23.5 mpg, Best tank: 25.1 mpg |
| Thu Oct 01, 2015 10:06 pm |
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Official CCB Member  Joined: Thu Nov 11, 2010 10:36 am Posts: 5984 Location: California
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Re: EFI fuel system I don't have an accumulator on mine and never had a problem... except the one time I went wheeling and forgot to fill my bronco up and climbed out of a steep gully, got into a precarious position and all the fuel was at the back of the tank.
But if you fill up before you tackle the tuff stuff you shouldn't have a problem. _________________ 1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow. http://www.ucora.org |
| Fri Oct 02, 2015 1:09 am |
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Moderator Joined: Mon Nov 15, 2010 5:58 pm Posts: 3906 Location: Henderson, Co
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Re: EFI fuel system Awesome. I have the flair tool so Now I just got to get the line.
_________________ Rob 74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories. 04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine New project: 77 Bronco Ranger, body work and more body work. Very little left of a 72 durango tan explorer sport |
| Fri Oct 02, 2015 3:21 pm |
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Official CCB Member  Joined: Thu Sep 30, 2010 1:40 pm Posts: 215 Images: 0 Location: Falcon, CO
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Re: EFI fuel system _________________ '70 Bronco, MAF 5.0, NP435, D44/9", 4.10s, 33" MT/Rs, PS/PB '71 Bronco, HP D60, Hi-9, 5.38/ARBs, 101" WB, 408 Stroker, AOD, Atlas, 40" MT/Rs, PiMP EFI. '78 F150 SWB/Stepside/4WD, 351W/4R100/NP205, 35" KM2s, under const... '81 Coachman Caper XL MH, 4WD, EFI 460/ZF/BW1356, D44/Sterling, 4.10s/35s, under const... '83 Bronco, D60/Sterling, 5.13/ARBs, MAF EFI 351W/ZF/BW1356, 37" MT/Rs. '12 Buggy, HPD60, Hi-9, 4.10s, Explorer 5.0, Atlas 4-speed, my chassis, EB skins. And the latest project is a '99 Ranger Extra-Cab, custom frame/tube work, on 40s... |
| Fri Oct 02, 2015 10:03 pm |
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