DIY 20 gallon auxiliary fuel tank

[I Lean]

I have a few questions. First did you just use the factory fuel pump from the S-10 tank hooked up to the Apexus switch? Please provide me with more information on the relay switch. I am also slightly unsure how the auxiliary tank has information on how full it is at the Apexus switch. I have ordered the programmable switch and I have found a s10 tank with internals. I also have an additional fill line for a land cruiser as well as an additional entire land cruiser tank. Could I use those factory Toyota parts in the s10 tank?

Yes, I used the S-10 fuel pump. That fuel sender also has a float to measure the fuel level in the tank, that's one of the things you hook up to the Apexus switch.

The relay for the pump is so you don't try to have the fuel pump's full power running through the Apexus switch.

If you can get the Toyota fill line to attach to the aux tank, then I don't see a reason you couldn't use it. I'm not too familiar with what that looks like though, so I can't help you too much.

 

[Patassa]

Bump for this, my welding skills are rusty as hell, been almost 20 years since I welded anything. Hoping someone else has done something like this and can tell me if the toyota oem dual filler nozzle could work for this instead of welding a nozzle on the factory pipe?

 

[FamilyCruiser99]

I just completed this Aux tank install. It can be done with the Factory dual filler. I will send a picture when I get a chance.

 

[Hornd]

What is this distance Between Muffler and Fuel Tank?
Maybe Picture makes it Look Small.

 

[Patassa]

I just completed this Aux tank install. It can be done with the Factory dual filler. I will send a picture when I get a chance.

Awesome, thank you!

 

[I Lean]

What is this distance Between Muffler and Fuel Tank?
Maybe Picture makes it Look Small.

View attachment 4164436

I can fit a hand between there. So I'll guess 3/4" space maybe? It hasn't caused any problems, it's still exactly the same as when I first installed it, nearly 7 years ago now. (Wow!)

 

[Kofoed]

I just completed this Aux tank install. It can be done with the Factory dual filler. I will send a picture when I get a chance.

I had to cut the factory dual filler to get it in place....then I abandoned it and used an aftermarket anyway