ZR-1 Net Registry Forums - View Single Post - My Billet alt is here and it fits !! pics and input welcome !

5ABI VT · 12-10-2014

These alternators are completely different than stock. They are a call denso hairpin models with a billet front casing to basically retrofit these newer alternators into older cars. From what I've read, the small hairpins basically blow away the factory alternators in every way possible. So using a factory rear is just out of the question really there wouldn't be anything to gain except a billet casing.

So far, the only thing they've gotten wrong is the ear thickness on the outer mount. I'll measure this and send it back to them just in case anyone does order in the future but 1-2 washers will easily make everything snug in there. Besides that I'm not too big of a fan of the spikey fun look and I can easily have it powdercoated or anodized when I want. As for the side post vs rear post, they haven't replied just yet but every denso alt i can google has a side post so maybe it wasn't possible ? Not sure yet there.

The only thing in confused about is the wiring. Anyone know off hand what the 3 factory wires in the harness are for ?

12-10-2014	#4
5ABI VT Join Date: Jun 2013 Location: Toronto Posts: 780	Re: My Billet alt is here and it fits !! pics and input welcome ! These alternators are completely different than stock. They are a call denso hairpin models with a billet front casing to basically retrofit these newer alternators into older cars. From what I've read, the small hairpins basically blow away the factory alternators in every way possible. So using a factory rear is just out of the question really there wouldn't be anything to gain except a billet casing. So far, the only thing they've gotten wrong is the ear thickness on the outer mount. I'll measure this and send it back to them just in case anyone does order in the future but 1-2 washers will easily make everything snug in there. Besides that I'm not too big of a fan of the spikey fun look and I can easily have it powdercoated or anodized when I want. As for the side post vs rear post, they haven't replied just yet but every denso alt i can google has a side post so maybe it wasn't possible ? Not sure yet there. The only thing in confused about is the wiring. Anyone know off hand what the 3 factory wires in the harness are for ?