Anyone have build plans for A huge main gas tank?????

[mofoco1]

Anyone have build plans for the biggest rear tank someones made and installed into the rear of an EB? Need to do a tank soon and want a SS one, not overly fond of whats offered in way of esthetics and capacity as I am eliminating the aux. tank.

 

[broncoitis]

I honestly think that 23gallons is about as big as you are gonna get! I made one for mine custom that came out to around 17+ gallons but didn't use all the available space im sure but is tucks up a little better I think and I honestly don't wanna have to fill up a 23gallon tank from empty but thats just me! ;D

 

[mofoco1]

I need the mileage tho. I have mocked the 23g. and I can do better. I have the 3" BL and there is still more room up there. Not going to crawl and bash this build so it will be more of a DD and coastal driver/ all around vehicle.

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[sykanr0ng]

Check with Aerotanks they make a 23 gallon Bronco tanks as their standard product but also make custom tanks out of either stainless or aluminized steel.

Their tanks have a smaller profile than other aftermarket Bronco tanks due to the tab mounting system they use, so with 3 inches more they could go up they could probably build a good bit more capacity into one.

 

[mofoco1]

The only thing is, I am getting scared with the comment from people having problems with the Sherman Tank and then someone mentioned the Aeros by name with the same problem. Wondering if I bought the material I could buy a bender at HF and get it to a point all I need is a beautiful Tig job.

 

[Rickmanmfg]

What are the problems with the Aero and Sherman tanks?

Royce

 

[bronconut73]

Sherman's "were" having fuel delivery issues and metal shavings in the tank.
But I think all of that has been dealt with.

I have heard people say the Aero lacks asthetic appeal. I guess the Welds aren't pretty.

Sherman is a great tank from BC or WH.

It does hang down lower than the Aero though, yet they are both 23 gallon,
The Aero's mounting system allows it to be a little wider and therefore not hang down as low as the Sherman.

 

[sykanr0ng]

I would not install any gas tank from any manufacturer without rinsing it out first.

Given the penny-pinching of manufacturers and the overall sloppiness of all too many manufacturing workers these days (you pay peanuts, you get monkeys) it is to be expected that corners are cut everywhere.

 

[mofoco1]

I have seen both the way they hang and both are fine, no issues there. I need it to be taller( just sent a note out to Aero. with the dimensions for a quote in both steel and SS. I figure SS would impede the rust issue and since it wont be coated on the outside sand should not be an issue. People using either one are plumbing main line to tank return to tube on filler right? and since its pre smog are they just capping the other nipple? How are they running a return from the carb? I ask how others are doing it as none of the other carbed hot rods we've had have not use a condensation tank or a charcoal canister.

 

[Broncobowsher]

Considering the aftermarket tanks are at least twice as thick as the stock stampings, and the stock metal tanks are generally still in service 40-50 years later. I'm not too worried about it.

Given the width between the frame rails, the distance between the crossmember and the rear bumper, and some ground clearance there isn't much room to grow.

I thought about a body lift and making a kickout over the top of the crossmember. But that would be a design from scratch. In the end I found 23 gallons to be plenty and the aux tank to be a pain to remember to burn the fuel before it went bad.

 

[sykanr0ng]

Using the same depth below the frame as a 23 gallon tank and adding 3 inches above the usual height above the frame should add some gallons.

Beyond that, you would need either a second tank or jerry cans.

 

[DirtDonk]

Not sure where you guys are getting the three inches more on top theory. Both the Sherman and the Aero are designed to go right up to the body pan, and touching it if the installer desires.
The Sherman is adjustable that way of course, but the Aero is typically ordered for use with, or without a particular amount of body lift, so that the tank sits as high as possible between the rails.

Custom ordering lets you fill whatever extra areas there are, but that's only downward and/or forward. Adding some downward in your case, because clearance is not likely to be an issue, is a sure way to get more fuel. I would personally push it out forward of the crossmember as well, to gain just that much more. Like the Sunset Metal tank is.

So what overall height did you settle on mofoco? And what capacity does it work out to?

Oh, and as far as the return, since this is custom, add your own wherever you want. And tell them to leave out any other EVAP vents while they're at it.
Personally again, I'd have them in any tank. Should make filling easier, and should make it less likely to fumigate the garage. But if you're not having any trouble in that regard now, I can see why you'd like to leave them out.

Good luck. Let us know how it goes.

Paul

 

[Teal68]

Paul, I think they are saying mount it like you have no BL then add 3" to the top.

 

[DaveLev]

Following this closely. Want a 23+ gallon tank as well without body lift for least amount for stock 2 barrel rig.

 

[Broncobowsher]

Following this closely. Want a 23+ gallon tank as well without body lift for least amount for stock 2 barrel rig.

Not happening. The space between the bumper and the axle, between the frame rails, and from the floor to something that doesn't resemble a field plow adds up to 23 gallons. That is the window you have to work with, that is the limit to the volume you are going to put there.

Until you want to start getting very creative, add a body lift and fill that space with tank, or some other oddity you are going to be limited to pretty much a 23 gallon tank in back.

 

[sykanr0ng]

Not happening. The space between the bumper and the axle, between the frame rails, and from the floor to something that doesn't resemble a field plow adds up to 23 gallons. That is the window you have to work with, that is the limit to the volume you are going to put there.

Until you want to start getting very creative, add a body lift and fill that space with tank, or some other oddity you are going to be limited to pretty much a 23 gallon tank in back.

That is what he is talking about doing.
He has a three inch body lift.

 

[Broncobowsher]

That's what happens when someone hijacks someone else's thread and gets it sidetracked. Normally I catch that, missed it this time.

 

[svobronco]

I got fed up with dragging my 23gal tank on rocks so I cut a big hole in the rear floor, built a 20gal tank and put it in even with the bottom of the frame's lowest point. I used a fuel cell top plate and fill it from over the tailgate. It's about 1/2 inside and 1/2 outside. A vent line runs from the fill plate to inside the LH fender well with a rollover valve. Never smell a thing. I lost a little storage space in the back, but well worth it. It could have built with whatever capacity I wanted just by increasing the height.

 

[mofoco1]

well custom it shall be. Going to do a template and get very creative. Yes I am going to fill the 3"s that the BL afford with a taller tank. I think I can get 25 to 26 gallons if I use all usable space. Plus I want SS and a skid plate.

 

[DaveLev]

Let us know what you come up with. I found it interesting that in the installation instructions of many being sold they say to put an inline filter before the fuel pump. That makes sense, but why not just clean the product before installing? There are thousands of threads on why you should never put an inline filter before the fuel pump on the interwebs, especially on anything race-related. I see that some recommend washing the welding slag out of the tank before mounting. I guess you can take the 23 gallon one and take it to a radiator shop and have them flush it I presume before ever installing. Thoughts?