- Jan 6, 2012
I have installed a higher output fuel pump for my land cruiser for the v8 swap. The stock wire size is what looks like 16 or 18 gauge and is about 8 feet long or so. The fuel pump pulls a maximum of 20 amps. The oem power wire has 3 plugs. One before the rear fender where it goes through the floor, one on top of the fuel tank, and one at the tank where it goes through the sender. I ran 12 gauge wire at the relay to about 3" before the first connector. The last 3 inches of wire before the plug is still 18 gauge. I was going to cut about 3" after the first connector in splice in more 12 gauge wire, and do the same at the second connector and at the tank. How will this affect overall resistance in the circuit? Is it a big enough deal where I should install new pins in the plugs and eliminate all 18 gauge wire?