Alternator Options?

[hozzmanrx7]

Originally Posted by FerociousP

Most use a pulley designed for the FD alternator to be used in FC applications. It properly spaces belt grooves to align with the water pump and crank pulley.

I got mine from japan2la, a forum member on 7club that made pulleys specifically for this application, and even made them in many colors. I am not sure he is around any more. Occasionally they pop up used.

Brian/japan2la is still around and doing just fine. He unfortunately got himself in a pickle playing a middle man for some JSpec engines where his supplier basically f'd him royally and left him holding the bag. I personally bought two TII engines from Brian 5+ years ago that I dropped straight in and not a problem to date. Daily drive both of them. So from personal experience the infamous engine situation was an exception from the norm, but the 7club bull dog couldn't see past that.

I'm using his pulley on FD alternators I put in both those swaps. In one I didn't use any Loctite, the nut came loose, and the pulley got damaged. To make the offset correct, the full thread isn't available for the mounting nut as you can see in FerociousP's picture above. So Loctite is a must. But Brian replaced and shipped it for free despite my operator error.

Anyway, I'd bet he is the manufacturer for the ones Mazdatrix is selling as I've never seen as good a plug and play FD v-belt dual pulley from anyone else. He makes great stuff and is/was a great supplier of all things RX7 for years, but bad luck threw a wet blanket on that.

I'd spend the extra money and order his Titanium one via Mazdatrix. About double the price, but worth it IMO.