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Posted

For the Big 3 upgrade (battery to alternator), when I fuse it it can I use a 150A Fuse? Right now my alternator is 105A and I hope to do a cheap upgrade to a 125A alternator soon. Would a 150A fuse work?

Posted

What size wire are you running?

2 Infinity Reference 1252w 12s

4.2 cubic foot box tuned to 28hz

Sub amp: 1 Profile AP1200

Speaker amp: 1 Sony Xplod XM-504z

Kenwood eXcelon KDC-X492

4 and 8 Gauge Knu

Big III In 1/0

All in my 90 Accord

f05112e8-c6ca-4f78-9a8d-47be99303c8b_zps

Diamonds are forever, but 9's end that shit fast....

Posted (edited)
it will work, but you should really look for a 125 fuse just in case.

You don't go by how many amps your alt puts out you go by what size wire your running.

Edit: Because you could run 1/0 and have the 150a fuse and it may/probably will blow, but you could run 4 gauge and run a 300 amp fuse and melt your wire and possibly start a fire.

Edited by brsteinbach

2 Infinity Reference 1252w 12s

4.2 cubic foot box tuned to 28hz

Sub amp: 1 Profile AP1200

Speaker amp: 1 Sony Xplod XM-504z

Kenwood eXcelon KDC-X492

4 and 8 Gauge Knu

Big III In 1/0

All in my 90 Accord

f05112e8-c6ca-4f78-9a8d-47be99303c8b_zps

Diamonds are forever, but 9's end that shit fast....

Posted

If I rember rite you fuse that wire to the fuse rating of the wire.

Me personally like a 150 amp fuse for 4 gauge or a 300 amp fuse for 1/0.

Isobaric - Refers to the practice of coupling two drivers together to make them act as one.

"Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go."

Insanity: doing the same thing over and over again and expecting different results.

The Destruction of a person builds character.

 

Terryswork001.png

Posted (edited)
If I rember rite you fuse that wire to the fuse rating of the wire.

Me personally like a 150 amp fuse for 4 gauge or a 300 amp fuse for 1/0.

X2 but I try to keep it on the safe side and go more near 100 amp on my 4 gauge. I'd rather blow a fuse then burn my car lol.

Edit: Not saying 150 isn't safe I'm just paranoid about my wiring.

Edited by brsteinbach

2 Infinity Reference 1252w 12s

4.2 cubic foot box tuned to 28hz

Sub amp: 1 Profile AP1200

Speaker amp: 1 Sony Xplod XM-504z

Kenwood eXcelon KDC-X492

4 and 8 Gauge Knu

Big III In 1/0

All in my 90 Accord

f05112e8-c6ca-4f78-9a8d-47be99303c8b_zps

Diamonds are forever, but 9's end that shit fast....

Posted

Alt size doesn't really matter. lol. Just get a 250-300amp fuse.

2 Infinity Reference 1252w 12s

4.2 cubic foot box tuned to 28hz

Sub amp: 1 Profile AP1200

Speaker amp: 1 Sony Xplod XM-504z

Kenwood eXcelon KDC-X492

4 and 8 Gauge Knu

Big III In 1/0

All in my 90 Accord

f05112e8-c6ca-4f78-9a8d-47be99303c8b_zps

Diamonds are forever, but 9's end that shit fast....

Posted

Like I said, I'm under the impression that you fuse to the size of the wire and not the alt.

Isobaric - Refers to the practice of coupling two drivers together to make them act as one.

"Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go."

Insanity: doing the same thing over and over again and expecting different results.

The Destruction of a person builds character.

 

Terryswork001.png

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