High amp alternator
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Joined: Apr 2015
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High amp alternator Has anyone run a 170 or 200amp alternator in their F body without making any wiring changes? Is it nessesary to make any wiring changes with a high amp alternator in our cars?
Thank you!
Thank you!
TECH Fanatic
Joined: Dec 2017
Posts: 1,476
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From: Bossier City, Louisiana
The devices on your vehicle only consume their same number of amps if you put in a higher capacity alternator. The two biggest reasons to ever upgrade an alternator would be a new high wattage car stereo or maybe a change to electric radiator fans. At that point, you would need suitably fat gauge wire for those items and probably a fatter 12 volt positive wire out of the alternator towards the fuse block.
Rick
Rick
I have a 200 amp unit in my car with factory ignition (sense/POR) line but with a 0 gauge wire to battery now. If you want to have full use of the 200amp source you will need to upgrade factory wiring IMO
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Launching!
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