Just a quick update on my work to get a 100A Powermaster Alternator to work in my ERA. After getting ERA's offset bracket, I was able to adapt my 100A 1-wire Powermaster alternator to the setup. I have a Shelby aluminum water pump which forced me to fabricate custom spacers and brace bars to get everything to fit properly with my water pump. I used a set of March 2V (dual grove) pulley set with an overdrive water pump pulley. I had a local machinist remove the rear groove on the water pump pulley to improve the appearance of the final setup. I have about 1/2" of cleareance at the back of my alternator with this setup and after a trip to the local auto parts store to find an appropriate length belt, I am in business.
I am going to remove all of the parts tomorrow to machine some custom length aluminum spaces and have all of the support brackets chrome plated. Should look pretty nice when its all done.
- Fred