Big 3 upgrade what type fuse

[Memphis2011 10+ year member]

Hey I was wonder I'm doing the big 3 upgrade on my civic and doing it with 1/0 gauge wire what size fuse do I need from my +alternator to the +battery terminal not sure what amp fuse to use can anyone help me with that?

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[i2ain2thunder 10+ year member]

fuse at or above what your alternator's rated amperage is. I like ANL fuses wafers are easy to see big fat connections and large enough to prevent arcing.

 

[All_Logix 10+ year member]

Depending on your year model civic and what trime you should be good between 100-150 amp fuse... normal 8th gen 100 amp, Si 150 amp... actually 120 amp is ideal, but good luck finding that

 

[keep_hope_alive Premium Member]

size fuse for the wire you use, wire and fuse sized above the alt rating.

 

[boddy 10+ year member]

So do you fuse at your alternators rating or your wires rating?

 

[kramer_212 10+ year member]

Depending on your year model civic and what trime you should be good between 100-150 amp fuse... normal 8th gen 100 amp, Si 150 amp... actually 120 amp is ideal, but good luck finding that

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