Is anyone here running FiTech with in-tank fuel pumps in dual tanks? I'm thinking that's what I would want to do on mine, but not sure how that would work with the valve and switching.

David

 

I pulled the dual tanks on mine and went to a single 38 gallon in the rear. A lot less complicated than dual tanks that way.

 

I like that solution. Thanks! I think I will use my mid-ship 19 gallon Aux tank as a reserve that feeds into the 38 gallon Main tank. Probably only to be used when towing.

David

 

If you're not going to use a tank regularly, keep it at least half full. Add some fuel stabilizer or SeaFoam. No need to rot out the tank or introduce skunky gas, especially when towing

 

Use a relay to switch pumps when the tank selector is moved. Wouldn't be hard to wire.

 

i am running duel tanks but using the fcc. yea it has some issues but i am figuring out as i go. what did you end up doing?

 

I have purchased the 38-gallon tank and the Tanks fuel pump for it, but haven't installed it yet. I still plan to use my Aux tank as a reserve for the Main tank. I will do an install thread on this when I get it all done.

David

 

I wonder if you could hook up a selector valve from a 90s model. They ran dual tanks with return lines.

 

That would probably work, but those selector valves have those Ford quick release connections with the plastic clips. As long as you can fab a hose with that on one end, and then whatever connector that is necessary for the tank or the throttle body (on FiTech is an AN fitting), then that could possibly work. You'd also have to figure out how to use that four pin flat connector (I think it's a four pin) in order to wire it properly.

I just think that keeping the dual tanks for an EFI setup is kinda silly unless you actually want to have 57 gallons of fuel capacity on board, and are willing to either run a dedicated fuel pump in each tank, or if you put an in-line pump ahead of the selector valve. The downer about inline pumps, is that they don't have the same life expectancy as they're forced to pull the gas from the tanks and then push it to the throttle body, when they were really designed to just push fuel. That, along with being cooled by the gas surrounding it, is why in-tank pumps last so much longer.

So, with dual tanks, the long term solution would seem to be a dedicated in-tank pump for each tank, a selector switch for both the pumps and the tanks (possibly could serve double duty if wired correctly), and a selector valve that allows for both supply and return. My thought on it is unless you truly need the extra capacity, why not just get the large single tank, and simplify things? The only practical reason not to do that is if you're still storing a stock spare under the rear tank (which most guys tend not to as they're running bigger tires).

I know that Buford can get approximately 494-608 miles with a single 38 gallon tank, which is plenty to go between fuel stops. Having more capacity without actually running it, means keeping in mind how fresh your fuel is all the time........sounded like more work than my brain needed, so I simplified.

Just my $0.02