The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - internally regulated alternator: resistor or no resistor?

gmc684x4 · 05-31-2021, 01:34 PM

I ran a 12Si 100 amp alternator more then 15 years no issues sock ammeter still worked as intended during that time No resistor needed for 10/12si
A resistor is needed for cs130/144 alternator upgrades

Why not look at a cs130 alt they charge way better at idle

05-31-2021, 01:34 PM	#8
gmc684x4 Registered User Join Date: Jul 2012 Location: Whitehorse yukon Posts: 1,218	Re: internally regulated alternator: resistor or no resistor? I ran a 12Si 100 amp alternator more then 15 years no issues sock ammeter still worked as intended during that time No resistor needed for 10/12si A resistor is needed for cs130/144 alternator upgrades Why not look at a cs130 alt they charge way better at idle