I was wondering if anyone had modified a stock tank (I have a new one so I can weld or solder on it) for fuel injection. With a fair amount of work I can fab up an in-tank pump, but there a lot of external pumps on the market, it is port fuel injection so it a high pressure system, around 50 PSI. Any words of wisdom are appreciated.
Thanks
Larry

 

You'll need to plumb in a return line into the tank and aim it in such a way it does not blow the fuel away from the pickup. An in tank pump requires it to be positioned to be cooled by fuel contact while operating and a safety switch that will cut it off when the remaining fuel drops too low. I'd also include an inertia safety switch that will cut power to the pump in case of an accident.

 

My 'donor' truck was a '89 F-150 and I cut the mounting ring and flange out of it along with the rollover/vent valve and installed them in my stock 55 tank. If you go this route, be sure to mount everything where you will have access to it through the cab floor. I've already had to replace my in-tank pump and it was an easy change out.

I used the 89's high pressure (frame rail) pump along with it's fuel reservoir mounted on the frame. As AX mentioned don't forget about the inertia cutoff switch. Donor vehicles are nice to have around and will save a lot of head scratching if your trying to install a stock efi system.

Here's a link showing the rail pump and with a little imagination you can see the mounting ring on the tank. https://www.ford-trucks.com/user_gal...130550&width=0

Good luck

 

As a side note, might want to think about a good in-line filter system..something with a serviceable /replaceable filter...somewhere easy to get at.Good Luck!

 

Thanks, great information. I could cut an area out of the bottom of the tank and weld in a little well that the pump could dip into. Do you think it is better to use an in tank pump rather than an outboard unit like a Walbro pump? Good point on installing the return in a place where it would not blow the fuel away from the pickup.
Thanks
Larry

 

Im using a rear mounted tank. The pump and inertia switch is OE from Ford.
Here is a 90 model Ranger in line pump.


Here is the inertia switch mounted in the battery box



I would definitely plan it out well so if you had to go back and change out the pump or something.

 

Donald,
Looks like a nice set-up. Apparently the out-board pump doesn’t have any issues priming itself. What type of filter do you use on the inlet of the pump that doesn’t cause too much flow restriction? Also when I go the yard, where is the inertia located on the Ford Ranger?

Thanks
Larry

 

Look on the passenger under the dash area. The filter is a 90 Ranger OE style like you can get at Carquest or Napa.

 

Just to clarify...

Huntsman, you are using 2 pumps?? the low pressure one inside the tank and the high pressure pump on the frame rail?

Tascon, are you using 2 pumps? or just the one on the frame rail? Do you know what year Ranger that pump is out of?? No issues keeping that pump primed?

Thanks for the pics and information. An external pump seems like it could be an easy alternative and easy to replace if need be.

MArk

 

OK, I do want the easy way out, however; if I do need a low pressure pump to feed the high pressured pump that’s OK, I will do whatever is recommended, I. only want to do this once, I'm not proud, just don’t want to re-invent the wheel.

Thanks to all...
Larry

 

[quote=mark914;6072641]Just to clarify...

Huntsman, you are using 2 pumps?? the low pressure one inside the tank and the high pressure pump on the frame rail?

Yes, My complete fuel injection system is from a 89 F150. I used all stock parts including the low pressure in-tank pump (which includes the return hose connection and the sending unit for the gas gauge), fuel reservoir, high-pressure external pump, inertia switch and the in-line fuel filter, all from the 89 Ford.

 

Yes using just the rail mounted OE 1990 Ranger pump? I have had problems one time when I let the truck run out of gas

 

Since you are fabricating it yourself, you could use an in-tank only pump from a 92 Mustang 5.0.

I put an 86 Ranger tank in my 54 with a Mustang internal pump (the engine is the 5.0 Mustang engine. The Ranger tank had the input, output and vent pipes in the flange, and the pump hangs off it. You could probably adapt that to your tank also.