The Big Three Mod

[Gatorboy]

Looks nice! Why do you have a fuse though?

 

[Rewind]

My question on this is what size wire should you use..........I've seen several diff. sizes used. I guess it depends on the demand on the elec. system.

 

[Gatorboy]

I'm just gonna overkill and use 0/1 gauge

 

[TUCSONDUDE]

Looks nice! Why do you have a fuse though?

If a positive wire shorts out or has to much of a load, it will eventually heat up so much it will burn/start a fire. A GND wire can also fail catastrophically from an excessive load, its it just less likely as often the body/other wires are in parrallel and relatively the same potential.

From batt + to alt plus, the fuse is mostly to protect the wire from excessive load. if either end shorts out you will still have that potential.

on our trucks 0/1 gauge is over kill, unless your running a huge stereo/winch etc. Bad advice to folllow but i would personally not bother fusing 0/1 on the big three unless you have some major aftermarket accessories.

 

[kidd666]

Like what was said above. Its to protect the wire. Im using 0gauge for future mods. Im planning on upgrade my alt to a h\o alt. Then Im planning on a second battery and a winch with more fog/driving lights so its just for the future plans

 

[JonZ71]

I have mine from alt to battery, negative to ground on frame, then negative to ground on the motor near the crank sensor.

 

[sewlow]

If a positive wire shorts out or has to much of a load, it will eventually heat up so much it will burn/start a fire. A GND wire can also fail catastrophically from an excessive load, its it just less likely as often the body/other wires are in parrallel and relatively the same potential.

From batt + to alt plus, the fuse is mostly to protect the wire from excessive load. if either end shorts out you will still have that potential.

on our trucks 0/1 gauge is over kill, unless your running a huge stereo/winch etc. Bad advice to folllow but i would personally not bother fusing 0/1 on the big three unless you have some major aftermarket accessories.

Good stuff!^^^.
On both my trucks, that woven bare wire ground from the chassis to the block were dead. Before I knew about 'The Big 3', I changed that ground on my '98 to 4ga. The 'ole man, a mechanic for many years, said that that was just dumb. "Go get the 'real' one from a parts store." Well, after I joined GMT400, & found out about TB3, I showed that to him, & ended up doing it on his 3/4t ECLB 460 4X4 Ford (a POS IMHO!) with dual batteries. Says he's had way less battery probs when he goes fishing/hunting/camping. Now all his old old fart buddies want me to do theirs!

 

[Gatorboy]

Can't wait to do mine. It'll have to wait till after Christmas though