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External Fuel Pump

7600 Views 12 Replies 5 Participants Last post by  t120r
Hey guys, just wondering if anyone has run an external fuel pump on their ranger. I have no idea how I'm gonna do this. I need to run a -10 line as a supply and a -8 as a return. For anyone not familiar with AN sizes, that's a 5/8" supply line and a 1/2 return line. Obviously quite a lot larger than the stock ranger lines. I was looking at the stock plastic tank and it does have a small area that seems separated from the rest of the tank.. I'll loosely call it a sump. I wonder would it be a wise idea to tap it for bulkhead fittings? I know they would never leak, but an offroad truck with fuel lines on the bottom is not a good idea. Any suggestions?
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What's it for? Not too knowledgeable, but I think early rbv's had low pressure in tank fuel pump feeding high pressure pump mounted on frame rail. This was to keep the high pressure from running dry or it was that the high pressure couldn't self prime. Perhaps if you research this you can figure a way to enlarge the stock openings. Otherwise by an aftermarket tank with the fittings you need. My research shows pricing from $~50.00 to above $1700.00.
Good luck and keep us posted
Like everyone, funds are tight. I really can't see me buying an aftermarket tank. Especially when the stock one will last 1000 years. The more I look at it, the more I think I can make a bottom sump feed/return system. Pretty sure that it will stay inside the skid plate too. Using Aeroquip pushlock lines and fittings, I could run the lines so that they avoid anywhere they could get snagged. I have to look more closely into it.
I was also told this morning that my work has the equipment to mandrel bend hydraulic lines for aircraft. So making a sending unit may still be an opition. We'll see.
Alrighty, heres what i have going.

Im using a small Mr. Gasket pump it comes with a FPR that 1-10psi as well.

I bought it used, not too sure of where to get one new, but i have it pulling through the lines that run to the stock pump, the stock pumps still in place, i wired it to the existing wiring, and bolted it to the frame under the drivers seat, i cut the lines and put it inline, it works beautifully.

I didnt feel like dropping the tank to replace to stocker, this one fell in my lap so i ran with it, plus the stocker for the FI 2.9 was drowning my poor carb'd 302.

EDIT** Found it on amazon

it looks like this one:

but im not sure if its the exact same, im in class, at break ill go look under the truck and see, im thinking i have a different flow.
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Cool as long as it seems to be working 8)
Well if it was carb I would just run bigger lines to the tank and call it a day. Running a 550+HP EFI system requires a bit of planning. I've decided to run a AN-10 bulkhead fitting on the bottom of my tank. That will feed to my Aeromotive A1000 pump. From there I will run to the fuel rails (In parallel) and out of those into the bypass regulator. From there I will run a AN-8 return to the top of the tank where I will have another bulkhead fitting (AN-8). Definently a lot of fooling around and a WHOLE LOT of fittings needed. Luckily I have access to a lot of AN fittings. So I'll probably have my entire fuel system done for $500. I plan to use Aeroquip pushlok fittings and AQP hose. From what I read it works great.
Definitely keep us updated and please remember to take pics, some of us don't really know what this stuff looks like,uh, like that guy over there,yeah,him-not me,yeah. ;)
No problem. So far I have all my AN fittings, pump and regulator. Just need to get the Aeroquip fittings and hoses now and I can plumb the fuel system. I'll make a write up when I finish.
Sweet I want to check it out
So, my idea of modding the stock tank fell threw. I just couldn't find a safe way to run the plumbing. The pressure side was easy, but the return is a pain.. Especialy with the volume flowing from an A1000 pump. So I scrapped that idea and picked up an RCI aluminum rear sump tank. I'll be starting that install next month sometime. It's a necessity for my big block, so it has to be done before anything else.
One of the things I found out when running the lines from my aftermarket tank is that "jic" fittings are interchangeable with "an" fittings and a whole lot cheaper. I picked up my fittings at P.A., tho I've found they aren't always the cheapest place to deal with.

The reason JIC are cheaper is because they have a straight cut thread. AN actually uses a tapered thread cut. I pay a little extra, but the OCD causes me to go all aeroquip AN :D. But for the low pressures of a fuel system, JIC would be fine. I wouldn't consider it for my hydraulic system though (Power steering/Hydroboost).

BTW: I get a ton of my fittings from Aeroquip express online. Great prices and they ship USPS to Canada. Can't ask for better.
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