Pontiac - Race The next Level

          
 
 
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Old 05-24-2026, 08:27 PM
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lust4speed lust4speed is offline
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Join Date: Jul 2002
Location: Yucaipa, SoCal
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Default 8 Gauge wire to battery and 130 amp alternator?

I normally like to run a 00 wire up to the front and pull everything off a solenoid up front. This racer is adament that he wants the starter solenoid in the trunk (65 Tempest) with separate wires for everything run to the front so that the starter cable is dead except when cranking. Currently has an 8 guage dedicated wire from alternator to trunk battery, and I see that 8 gauge carries about 55 amps on a good day. Planned alternator is a CS130D that can put out 130 amps maximum and will still be capable of 90 amps at 1,200 RPM idle - at least at the alternator. Is there another solution other than running a larger cable just for the charging circuit?

I was reading somewhere that smaller wire size in itself will limit charging amperage but don't want to melt a wire finding out the theory doesn't work. At the moment I'm thinking about protecting the 8 gauge wire with a 60 amp fuse at the battery.

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