EFI Fuel Tank Mod

BigBlue Mustang

New Member
Aug 26, 2009
3
0
0
Has anyone found a fuel tank with built in fuel pump (from another type car)that would drop into a 65 Pony that would work for an EFI conversion?
I'm trying to consider all options and have ready many posts and articles on adding an electric fuel pump, but no article about using a different type of fuel tank already equipped.

Thanks
 
  • Sponsors (?)


The tough part to putting a lat model EFI tank in the early Mustangs, is that late model cars the tank sits under the trunk, and is shaped to fit the body, with a side mounted fuel neck. If you are willing to do some modifications to the trunk floor, and change the filler neck, it could be done.
Unless you plan to stick close to home, it would be worthwhile to move up to a '69 tank that is 20 gallons. You can still fit a flat plate across the floor of the trunk (unlike the 22 gallon tank).
There is a write up on the web site in the signature below on installing a 20 gallon tank, with an intank pump install, and includes running the fuel lines, that may be helpful. Overall it was pretty easy to do.
good luck,
 
you can use your stock tank and pick up. walbro makes nice in line pumps that you can splice into you factory line. it uses compression fittings so you wont have any leaks. only thing you would have to do is run the return line.
 
Thanks for all the good info. Good idea going to a 20 gal tank. I'm going to do that with an external fuel pump.
Thanks for the help!

Unfortunately, contrary to one or more other posts here, just adding an in-line pump and a return line is NOT the only considerations involved.

Late-model cars with in-tank fuel pumps also have baffling that helps prevent fuel starvation that can occur on turns/acceleration/decelleration.

So . . . to compensate for that, if you are using an in-line pump, you need to have an accumulator of some kind before the pump itself.

There are LOTS of articles related to this, so you might want to perform a search online for EFI Conversions and read up on the solutions implemented by others before just adding an in-line pump . . .