I posted earlier regarding the pulley size I should use with a Niehoff A1-750 I recently purchased. Thanks for the suggestions. I did contact Niehoff and they confirmed the Max RPM is 8,000. They recommended a pulley size of 3:1.
Now the hard part; finding a pulley. When I measured the shaft I came up with .785, plus or minus. Maybe it is 20mm? I would think I could find a pulley online. No luck so far. Anyone know a source for alternator pulleys. I don't want to change the 8V92 pulley over to a serpentine belt and will be going with 2 or 3 V belts. Approximately 3" diameter.
Thanks,
jok
I would be checking the local HD rebuilder.
Dave M
Have you tried Smiths Co Electrical in Greeley Co 1-888-860-4339 they may have a web site I just call, most of the speed shops like Summit Racing may have the correct pulley
Try Blanchard Electric www.blanchardelectric.com (http://www.blanchardelectric.com) they will have one or can get you one or make one from a pulley blank
good luck
If the shaft is smooth or with just a plain key any machinist can make you a pulley quite easily.
Brian
For me the 1st big question would be, the drive belt(s), multi groove or a couple V belts, so the drivier pulley might also need to be changed, depending on engine, rpm of the driver pulley, the size of the driven pulley would be a simple issue to figure for tha 8000 rpm of the rotor. All normal & easy once you figure the needed belt configuration, would perfer the multi groove if possible.
Is this a 12 Volt or 24 Volt setup ?,
FWIW
Dave M
Where are you going to drive it from on the engine the cam shaft,crankshaft or a auxiliary drive the cam drive on a 8v92 is pretty much etched in stone being 6 inches the crank drive lots to work with there from 5 inch up to 10 inch if you have a the bolt on type hub for pulleys not much changing you can do with cast pulleys
good luck