With the addition of my cars new rear end its come to my attention that I can no longer drop my gas tank without first taking out the IRS. For this reason i would like to remove my stock gas tank and add a fuel cell in my trunk. I dont know that much about how the fuel system works in a car but I keep hearing that I need to use my stock sending unit however in order to do that it needs to be mounted in the same position it is now which is sideways. I would like to have a fuel cell with the sending unit sitting on top. I know people who build fuel cells so i can get one that fits nicely into my trunk but I would like to know if i want my sending unit mounted on top of the fuel cell what will I need to do? Im guessing buy an aftermarket sending unit and probably change out a bunch of other stuff in the car as well if someone could explain the process to me and recommend some quality parts id really appreciate it.

Anyone?

I use an aftermarket Jaz tank in the RocketCouch with a fuel sending unit built into it. I made a mount on to keep the tank level so it always has a constant supply of fuel going to the sump.

Here's some pics of mine:



Making the stock sending unit work with an aftermarket or custom cell will need modification. I don't even think that anyone that has done a fuel cell would even bother with the stock sending unit.

I know your buddy can make a tank but if you need any fuel system parts please let me know

Chris i didn't know you were running nitrous. And i think a fuel cell would be cool.

So what do i take the sending unit out of? A f150? or do i buy an aftermarket one that will work with my fuel gauge?

I personally dont think you would need to use the sending unit thats in a ford really. Its just that you'd have to pick a aftermarket sending unit that will work with the ford style.

an example. I had a G body cutlass and had a fuel cell in it..Gm usses sending units that read 0 ohms - 90 ohms. 0 ohms = empty and 90 = full.

I"m not sure what ford units read at but thats all you'd need to make sure of.

Fuel cell in the trunk is sounding better by the minute.

Anyone know what the ohm specs are for a for sending unit? Also the fuel pump in my car is in the fuel tank when adding a fuel cell im guessing i need an after market fuel pump that mounts outside of the tank?

15ohms = empty
160ohms = full
resistance in the wiring from the fuel sender to the gauge should be < 5ohms

Thanks for that!

run your fuel pump outside the car if you can or you will smell fuel in the car all the time. my corolla was like that until i moved the pump. i was afraid to smoke in it

what is this fuel cell thing?