EFI fuel tank module for stock tanks

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jos51700 said:
This was my plan, using a mid-90's Ram pump (since I'm running a Magnum, makes it easy). I had to make a threaded flange on a lathe though, and I will eventually weld/braze it to a new tank. Access port in trunk, done.
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That's always been the issue. You have to put a lot of fabrication into making it work.

This E-Body pump seems to fit the stock A-body tank and is readily available only $120 more than a new sender.


What would really be nice is if Holley came out with Mopar versions of their in-tank pump modules. Their design integrates a 58psi regulator right off the pump, making plumbing and parts less complicated.

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clementine said:
That is true. Ill think about that. I am using the stock hole with the OPs hack, but I had not thought about contamination. Putting in a baffle at this point for me is no biggie. I guess the benefit of an in tank pump for me is ability to run EFI and have it be more quiet than an inline (not that your design has an inline, just that it is a usual alternative with various aftermarket EFI solutions). Ill check out the surge tank design you wrote about. So to be clear, a surge tank could be a 1 gallon fuel cell tucked under the front fender that has a submerged pump? and the return line from a fuel rail or TBI back to cell and then back to tank? Sorry if Im not getting this right at this point, new systems for me. I have not run return lines in the past, just dead head situations.
Thanks!
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Here is a sample, but you can put pump inside surge tank as well for sound deadening but its next to motor so what's the point. Beneifits include minimal high pressure hose/line runs and use of existing tank supply line, just add low pressure return line. if you tank mount it, your running 12 feet of high pressure fuel line, this one has you running about 2 feet.
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Edelbrock, Radium and FiTech have add on surge tanks with integral pumps. You just have to find a place to put them and route all the plumbing.
Cons:
Complexity of maintaining two separate fuel systems
Increased plumbing
Cost

Edelbrock's:
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Radium:
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FiTech
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View attachment 1715164099
 
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Fuel lines under pressure routed inside the body shell of the car. Brilliant.

Why didn't I think of that?
 
Moving forward. I read baffle should be 1/4 height of tank. . so there it is. I have cost of pump and used the same type of metal from a spare tank, that i used the non rusty metal for baffle. The float is a little high but that will keep me from running dry anyway.
Any input its welcome. Will probably weld in soon. And pressure test.

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Its a tight fit. A lot of turning, and use of slots to get it in. I have yet to try to stuff it with filter on it. Have access to both sides of tank (in/out) so it could get tougher here real soon, after its welded shut.
 
Oh.... the box..... yeah, ...no i have sectioned out the tank to make room for exhaust due to keeping leaf springs with a mini tub.
 
Dang, I'm trying to figure out a way to get something like that in my tank without cutting on it. Makes me appreciate those people who build ships inside of bottles.
 
I'm not sure about what type of material would be resistant enough to gasoline, but is a bendable plastic trough that could slide into the tank through the sending unit opening and then be held in place by the pump itself possible? Seeing that one set into the cut tank gave me a whole new outlook on what could be possible.
Cley
 
I have been pondering that too, but I'm hesitant, because of the lateral force on the whole pickup assembly that could be felt when a sharp corner is taken. A few gallons of gasoline sloshing to one side rapidly can exert a fairly good force I would think. Is the pickup lock ring strong enough to resist that? You effectively create a sail when you put something like that in the tank.
 
You are correct there. I never thought of it from that angle. I don't have a problem cutting and welding my tank either since that would be very close to free! I thought I could just cut the rectangular shape of the baffle in the bottom of the tank and then install the baffle, cover up the hole, done deal!
Cley
 
I'm currently wondering if a solution using magnets to secure it to the bottom of the tank would work.
 
I built a post to keep the pickup from pressing on the bottom of the tank and pounded out a bit of a dish right where it sits. I also made the mounting hole just an RCH bigger and it had made pulling the pump in/out much easier. Still have yet to try with baffle tacked in place.

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how about a circle cut in the top of the tank and a drop in pump with a boiler flange to seal it up? Just making an old tank like a new one I guess but you could cut same access hole in trunk like the imports do behind the seat. I still think a surge tank made from a chrome overflow tank next to radiator to match the real overflow tank would be easier. This one has top that can swallow an inline EFI pump whole.
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Continue.....
 
I agree that would be super premium. I considered the top mount pump but probabaly out of sheer laziness chose the original mod posted in thread. I was going to have the tank opened up because of a narrowing it due to a leaf sprung mini tub job that leaves me no good routes for exhaust....killin birds this way .....with little money....student right now. Only can work so many hours each week. I do like the surge tank setup, it was suggested once before. Looks pro.
 
This stuff's been around for Chevys for over 20 years.
 
So I wonder if a person could use one of those disposable baking pans as a baffle? Grab a meatloaf sized one, put a couple of holes in the bottom, and then roll it up so that it fit inside the pickup hole, and then once inside, use some finesse, possible some tiny hands, to unroll it and smooth it out back into shape, and then use some strong magnets to hold it in place. Lower the sock and pump/pickup assembly into it, and voila.
 
If anyone is interested they can try a Jakefab.com fuel puck which fits directly into the cutout of the Tanks Inc EFI tank cutout. I'm using one on a 69 Baracuda fuel tank and running the Holley Sniper EFI unit with a corvette fuel reg/filter. Works a treat!!
 
Sorry if I missed it. But does anyone know if the SPECTRA SP196A1H fuel pump will fit in a 63-66 A-Body Dart tank?
 
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