Got my 69 Mustang tank for my 52 and am thinking of how to put it all together.Mounting is a piece of cake.What I am thinking about is my pump set up. I am going to run a inline pump from a 90ish Ford van because I am running a 5.0l EFI. Now they had a supply pump in the tank that feds the high pressure pump at the front. I am thinking if I mount my pump close to the tank it should have no proplem picking up the fuel thought the stock pick up in the tank.Proplem when the tank is low on fuel and you corner all fuel will travel away from pick up causeing a stumple if not stall proplem.Fuel pumps in the tank have a reservoir where the pump sits in so this doesnt happen.The Mustang tank has no reservoir. I could make one and try to mount it inside the small opening of the tank and solder it in place.Hard spot to get in though small hole.Or two other thoughts. One, Tee my return line into the feed line behind the pump so returning fuel is there to be resent to front.Or take a long lenght of 3/8'' steel line and coil it inside tank and place the pick up sock on the end of it. This would act as my reservoir.Or do both ideas and see how it works.All thoughts welcomed.

 

first off,you should never let you fuel get that low...its hard on the pump,it needs the fuel to keep it cool and not burn out.

imo the tee behind the pump would be your best bet,it would suppy fuel long enough if they was a temporary shortage of fuel at the tank.

keep it simple.

 

You might want to bite the bullet and open the tank, and put a "bucket" in it from a 5.0 equipped car, or just bag the Mustang tank and get one from a 5.0 car. There are ways to create a reservoir between the tank and the main pump, but none are pretty in terms of reliability. Lots of plumbing. I have heard of people gluing a steel can, with a couple of 1/4" holes drilled in it, to the bottom of the tank (inside), to mimic the bucket. But you're limited by the size of the sender unit hole. The return line can be fed into it, too. The Tee idea won't work; it will blow fuel back thru the sock.

I would be very very reluctant to try any flame-related work on a used tank, no matter how dry you think it is. Especially uncoated (unlined) tanks like the old Mustangs.

 

If your think the return line will back flow here are two options:

Put a one way check valve between the T and the tank.

The other option would be to install a small tank, maybe stainless cylinder holding a half gallon or gallon of fuel placed between the exterior pump filter and the main tank. Input line to cylinder high on the cylinder and the exit line low on the cylinder so as not to trap fuel in the cylinder.This would provide extra fuel when cornering. I wouldn't try modifing the tank.
chuck

 

This is what I am am using on my new 66 mustang tank.
30 to 100 PSI Fuel Pumps

 

Hey gt40racing are you mounting that pump thought the top of the tank?

 

Yes I will be mounting on top and running the fuel lines along the frame.

 

That looks like the ticket! Especially since it uses Walbro pumps, easy replacement down the road.

 

Post some pics when you get it in there.Also what are you using for a sender?

 

I have purchased the kit already and it is very nice. I am planning to mount the tank in a frame for easy removal. Everything will be easy to get to. Also have plan for inline fuel filter. I did this on my 66 efi fastback mustang. Very easy setup if you plan your fuel line route. I will use the 65-66 mustang sender since the tank is setup for that already. One nice thing is you do not have to figure out much with this setup.

 

Most of these tank posts are old, but I really don’t think a lot has changed. I’ve been reading and I’ve found it really interesting. Not looking for injection so to speak but installing another cheek tank on my 1955 F-100 and moving the battery aft under the bed. But still loading the stock filler and transferring over to the right side. I had that on my 1954-F-100 and really liked it. Just thinking. Right now, great post. And good reading!AJ

 

Having a second tank is nice since the originals are only about 16 gallons as I recall.
The PO on my 1955 F-100 installed a second tank on the rights side and moved the battery under the hood. He notched out the right inner fender and recessed a battery into it. Needless to say, the inner fender is not strong enough to support a heavy battery. I still need to repair the damage the battery weight did to where the inner fender mounts to the cab. I’m sure there is a place to mount the battery under the truck, somewhere.
I ended up installing my second tank in the rear, just in front of the rear cross member. One downside to the dual saddle tanks is the same thing General Motors did on their dual tanks for their square body trucks. I had one and it was frustrating when filling up. You need to move the vehicle to access the other side.
On my 55, I ended up using a drop down battery box slightly to the rear of where the original battery went, so it would drop down. I then used the remaining space to mount my remote transmission cooler.