I have a stock 3-Wire 10SI 63-amp Alternator in my 1980 Camaro. 1-wire goes to my car battery, 2-wire connector is part of engine harness. I need to upgrade to a 100-amp output for electric fans, electric water pump, and electric fuel pump. I want to stay with 10SI case, so it fits my existing mounting brackets. I look on Jegs and Summit and notice their high output 10SI alternators are 1-wire. The 1-wire apparently connects to my car battery. Can I use these 1-wire alternators and not connector anything to my existing 2-wire connector? I think 1 of the 2-wire connections is for my idiot alternator dash light.

Thanks Kevin

 

Perhaps this post will help answer some of the questions you're asking. https://camaroforums.com/forum/67-69...-69-z28-85320/

 

It will work just fine. I have same setup

 

You should your original 63 amp case 3 wire and have it rebuilt for and 100 amp one .at most automotive electrical shop. I have a chrome one on my 1979 Z-28 So it shouldnt be an issue