Un-hacking ignition wiring
On a '73 a-body those feeds join at a welded splice. The alternator wire is 12 or 10 gage.
Since you will be running additional electric loads, you probably want a different scheme. The standard '73 scheme routes the power feeds inside the car, and then out again through the bulkhead connector tothe engine compartment. Not a big deal if just running ignition and field, with occassional battery charging. Thats a long route with lots of connectors for 40 amps all the time. You probably want a setup with relays and a fuses in a auxillery box under the hood. The B-body fleet type wiring is worth looking at. Even with the high-output alternator type wiring scheme, you probably don't want to use a factory ammeter because the equipment will be sucking 40 amps from the battery and then recharging repeatedly.
The schematic, like most of the schematics calls the main circuit 'Battery'. The Power supply is actually Battery or Alternator.
On a '73 a-body those feeds join at a welded splice. The alternator wire is 12 or 10 gage.
Since you will be running additional electric loads, you probably want a different scheme. The standard '73 scheme routes the power feeds inside the car, and then out again through the bulkhead connector tothe engine compartment. Not a big deal if just running ignition and field, with occassional battery charging. Thats a long route with lots of connectors for 40 amps all the time. You probably want a setup with relays and a fuses in a auxillery box under the hood. The B-body fleet type wiring is worth looking at. Even with the high-output alternator type wiring scheme, you probably don't want to use a factory ammeter because the equipment will be sucking 40 amps from the battery and then recharging repeatedly.
