Reply to "Alternator Pullys"

roverltdMember

I hate to question one's approach, but why do you need such a huge alt? You really need some serious load to require 200amps. Otherwise you give up HP just trying to spin the thing underload.

With a Winsor I was able to run double V-belts. Tooks some mixing and matching of various components. Perhaps the hardest part was finding a double pulley for the alternator. Most are single groove.

The only down side of the posted pic, is that the belt wrap on the alt is about 25%. In a later version, I dumped the A/C compressor to get closer to 50% belt contact around the alt pulley. You will need more contact to assure the transmission of torque. I am running a much smaller alternator so it is not about torque. I did this for extra protection from losing the one belt that runs the H20 pump and Alt.

I hope the ideas help.

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