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Custom Fuel Cell?



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Old 07-07-2013, 08:53 AM   #1
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Custom Fuel Cell?

Anyone ever had one made? For some reason I am having hell with my 2161 behind my back seat making enough room. I'd really like to have mine under the jeep like stock but with my 14b pushed back 11" there isn't room for even the smallest Genright tank.

I thought about having one built with a notch big enough to clear the 14b diff but I don't think it would end up being deep enough for the stock pump or I would have to run it off to one side of the tank and risk starving it off camber.

I've seen people build them out of steel but I don't know if mine welding is up to par for a fuel cell so I was thinking about just having one built to my specs to use an external pump or possibly the stock one if I can work it in.

The plan would be to have it set and strapped down to a think skid plate bolted under the frame rails allowing it to be lowered like stock for service.

Any thoughts? Advice? Angry insults?
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Old 07-07-2013, 09:07 AM   #2
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Kevin made me a custom tank for my fj80 and so far so good. Cool part was I went from 18g stock tank to 30g. Find a good metal fabrication shop in your area and feel them out. Or if you want Kevin's number it's H&H fab in my sig.
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Old 07-07-2013, 10:12 AM   #3
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I've built several custom fuel cells. It's not that hard just time consuming. Speed Way sells fuel caps filler necks ect. .
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Old 07-07-2013, 10:27 AM   #4
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Old 07-07-2013, 11:03 AM   #5
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I guess most are using aluminum?

Another thing I was wondering about was using a stock type filler mounted somewhere. Where does the fill neck need to go into the tank to allow the fuel nozzle to cut off before it fills the tank to the complete top where the vent is located?

I suppose if you had one made you could use a vented filler neck and not have any sealed surfaces on top of the tank like mine does now.
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Old 07-07-2013, 12:03 PM   #6
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If you use flux core wire odds are it will leak, flux core wire leaves porus welds with microscopic holes. Build your own tank and use gas tank sealer, even with shady welding skills you can still seal a gas tank. It will also protect the tank from rusting and prevent leaks if the tank gets dented and abused.

Aluminum tank? Sure I have seen them. Many years ago some boats had them. Today we have a problem though, ETHANOL, it will corrode the F out of aluminum and it is in almost all fuels. If you were to build an aluminum tank and tig weld it and it was leak free, I would still recommend you use a gas tank sealer or you will have crusty white aluminum nside your tank in a few months.

The vent tube extends down into the tank, and is what determines when the gas pump shuts off, not the fill tube. When the vent tube closes off backpressure builds in the fill tube and the gas pump shuts off. The back pressure is the key, and it will take some engineering skills to get it just right for your particular application. A fuel tank can be as complicated as you want to make it.
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Old 07-07-2013, 12:45 PM   #7
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Personally, if it had to be aluminum I would measure and design it myself. Then bring the plans to a couple local sheetmetal shops for pricing. I dont see a problem with a steel tank as long as you dont let it sit for longs periods of time. Either way, you will need someone to break it up for you.
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Old 07-07-2013, 02:08 PM   #8
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What about recessing the 2161 into the frame some. I plan to try to do that on my yj, should only leave an inch or 2 above the floor pan if I remember right.


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Old 07-07-2013, 02:22 PM   #9
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What about recessing the 2161 into the frame some. I plan to try to do that on my yj, should only leave an inch or 2 above the floor pan if I remember right.


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That was my original plan but it is going to be tight underneath with the 14b. Plus I would have quite a bit of tank in the cab that I would have to build some type of cover for to isolate from the occupants. If I could get away with 2 or 3 inches above the floor I would probably do it but I would probably have to have a fab shop notch the tank for the diff.

The main reasons for wanting it completely under the jeep is for occupant safety, I plan on starting to bring the kids and I don't like the cell pressed up against the back seat. Storage space, with the tank and seat in the back I have zero storage space for anything in the jeep. Also trying to keep the tub mostly intact without cutting the bottom up and welding in a new cover over the tank.

In the end I will most likely end up going that route if it will fit but it's not my ideal setup. I wish Genright made a tank that would work with the 14b back that far but unfortunately they don't.
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Old 07-07-2013, 02:28 PM   #10
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100% in the same boat as you!! I have 1.25" body lift so that helps me some, I was planning to build a skid plate flush with bottom of the back of frame, which shouldn't interfere with my 14 bolt I hope. Planned to cut floor and no in around it as well to keep fumes and leaks away, especially with top on.


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Old 07-07-2013, 02:43 PM   #11
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100% in the same boat as you!! I have 1.25" body lift so that helps me some, I was planning to build a skid plate flush with bottom of the back of frame, which shouldn't interfere with my 14 bolt I hope. Planned to cut floor and no in around it as well to keep fumes and leaks away, especially with top on.


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Yeah I have a 1" body lift also. I need to pull the rear springs and stuff the 14b and take some measurements to see just how much room I will have but I know it isn't much.
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Old 07-07-2013, 07:46 PM   #12
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Dott made a cool custom AL tank for his buggy, might hit him up.
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Old 07-07-2013, 08:18 PM   #13
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