Yeah, I get that but the way i have it wired, in my head anyway, the battery charge and all equipment on the car will be run through that charge wire so it will have to be big enough to handle it. The original wire was 10gauge. That ran everything in stock configuration. Probably all the new stuff could be run through an 10 or 8ga. But put all that draw through the same wire feed from the alt...I think I'll go 6ga. I know it's overkill but my battery is in the trunk so that power has to travel a long way to keep it charged already and with all the additional draw, well I just don't want to take any chances.
My Batt. is in the trunk also. I have the Ford type starter sol. on my core support where the Batt. used to be. My Batt. cable from the trunk goes to one post on the Ford Sol. I run my charge wire from the Alt to that same post. I run a #6 cable from the Alt to the Sol. I like to be safe in case for some reason the Alt goes to full charge, it won't burn up the charge wire as fast. Also the CS130 type alt is about the same in size, if not smaller than the SI type alt
