Fuse size for big 3?

[drwang 10+ year member]

What fuse size should I get for the Big 3 upgrade?

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[wolfman1966 10+ year member]

? I may be wrong, but what would you use a fuse for in the big 3? I thought it was just running wires. My system isnt big enough to need to do the big 3, but I thought the only fuse on the wires was on the power wire to the amp.

 

[bds0688 10+ year member]

You only need a fuse between the alt and battery. Unless you want the wire to come off the battery or alt touch ground, and melt yo ****.,

Just get a fuse for whatever the wire can handle. 0, 2,4 gauge...what kind?

 

[M@nJo 10+ year member]

its on step 3: batt+ to alt+

depends on how long the wire is and what gauge.

im using 4ga, about 6-7 ft long, fused with 150ANL by battery.

 

[Beginer 10+ year member]

Well I think he want to put fuse on alternator -> battery positive wire.

But I don't think that it's necessary. I woudn't put fuse.

 

[drwang 10+ year member]

1/0 wire

 

[azimuth 5,000+ posts]

Well I think he want to put fuse on alternator -> battery positive wire.But I don't think that it's necessary. I woudn't put fuse.

you would if the wire ever came loose. it can happen, even with the best of installers.

 

[drwang 10+ year member]

So what size fuse should I get for 1/0 gauge wire? Do I just get the largest one?

 

[drwang 10+ year member]

choice of ANL Fuse size -60/80/100/120/150/200/250/300

 

[oglejust 10+ year member]

i dont use a fuse... i just made sure when i put it on that it wasnt gonna come off

 

[phyphoestilic 5,000+ posts]

i dont use a fuse... i just made sure when i put it on that it wasnt gonna come off

never know when something can happen. Its like no one really plans on catching their house on fire.

 

[Pyro_By_Nature 5,000+ posts]

For true 1/0 use a 300A fuse. Highest with 2 gauge, 200-250A, 4 gauge 150A, 8 gauge...........don't even bother.

 

[drwang 10+ year member]

For true 1/0 use a 300A fuse. Highest with 2 gauge, 200-250A, 4 gauge 150A, 8 gauge...........don't even bother.

Thanks man

 

[05AztecRed 10+ year member]

? I may be wrong, but what would you use a fuse for in the big 3? I thought it was just running wires. My system isnt big enough to need to do the big 3, but I thought the only fuse on the wires was on the power wire to the amp.

Doing the Big-3 is NOT based on how big your system is... It is recommended for everyoen to do to help with the electrical system of the car...

 

[mtlhead 10+ year member]

You only need a fuse between the alt and battery. Unless you want the wire to come off the battery or alt touch ground, and melt yo ****.,
Just get a fuse for whatever the wire can handle. 0, 2,4 gauge...what kind?

happened to me...guy who put my alternator in ran the power wire across the serpentine belt....bad things happened, luckily i had a fuse