American Autowire Megafuse Location - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MikeB** · 09-07-2023, 09:32 PM

I didn't do the wiring like AAW wants you to. I thought 6 gauge wire was overkill for my system, and it's virtually useless to have 175 amp fuses protecting 6 gauge and 10 gauge wire. I just used one 60 amp fuse protecting 8 gauge wire between battery and alternator, and no separate fuse on the 10 gauge fuse panel feed wire.

I used 8 gauge wire between battery and alternator because the highest current draw I've ever measured from battery to rest-of-world is around 40 amps. And my stock system used 12 gauge wire and and a fusible link, neither of which looked overheated after 54 years.

So, 8 gauge wire from battery to mega-fuse, and then across the core support to a distribution block. The circuit breaker on the top right of the picture powers a Vintage Air A/C system through a relay.

09-07-2023, 09:32 PM	#7
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 4,038	Re: American Autowire Megafuse Location I didn't do the wiring like AAW wants you to. I thought 6 gauge wire was overkill for my system, and it's virtually useless to have 175 amp fuses protecting 6 gauge and 10 gauge wire. I just used one 60 amp fuse protecting 8 gauge wire between battery and alternator, and no separate fuse on the 10 gauge fuse panel feed wire. I used 8 gauge wire between battery and alternator because the highest current draw I've ever measured from battery to rest-of-world is around 40 amps. And my stock system used 12 gauge wire and and a fusible link, neither of which looked overheated after 54 years. So, 8 gauge wire from battery to mega-fuse, and then across the core support to a distribution block. The circuit breaker on the top right of the picture powers a Vintage Air A/C system through a relay. Attached Images __________________ Mike 1969 Custom/10 LWB -- owned for 37 years. 350/TH350, 3.08 posi, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. Hedman stainless headers. Old Air installation in progress. 1982 Custom Deluxe 10 SWB -- converted from 250-six to roller cam 350 w/ Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) which I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 26 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 09-08-2023 at 12:31 PM.



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