themealonwheels

iTrader: (20)

Since this thread is back and alive, let me hijack...

You started by saying 250A is what you need. What were you powering with that? I ask because on my Hombre swap, I threw the battery under the bed and sent two (2) 2 gauge wires to the front: one straight to the starter, the other through a 150A fuse to a post that distributes to the fuse box and the alternator. My voltage is a steady and happy 14V at any given time when heat soaked.

I never liked that my starter wire isn't fused, and I wouldn't mind throwing a block in if it would handle the amperage. So, if I had a dedicated 2ga wire to the starter, what size fuse could I put in there?

RENE'S RAGE

iTrader: (96)

I actually used a 200 amp fuse. I fused the negative side. That way the whole system is fused before the hot side of the battery.
I had a little incident last year, my starter wire was laying on the header, burnt the wire and went to ground. Blew the 200 amp fuse.

If you don't want to fuse the negative side, I'd put both your wires on the same 150 amp fuse, And see if it holds.

themealonwheels

iTrader: (20)

Let's make things more complicated, I have two ground wires: one to the block, one to the frame lol

So two 2ga wires on the positive, two to ground.

RENE'S RAGE

iTrader: (96)

Grounding the block and frame are a good idea. Mine is similar, both block and frame are grounded, but with one continuous 1/0 wire.
Since you have the fuse on the positive side, I'd just break the starter wire and put it on the same 150 amp fuse and see if it holds. Probably will.

01ssreda4

iTrader: (96)

Im not saying youre wrong. But no OEM fuses the negative, and second ive seen primary wires burn/melt and in my experience its started burning from the positive post. Id fuse the positive, plain and simple.

ramairws6

iTrader: (33)

Do it whatever way you like but grounding the negative works "plain and simple"!!