Like some of the other members have stated, you can't clamp a HO alternator at low RPM's and expect it to do the rated output. I think you need to clamp it at higher RPM's and do a little more testing on the alt. Also you need to make sure all the connections are good and tight. When I installed my alt and the big 3 I left one of the stock wires off and realized that the alt wasn't charging because that wire that I had left off also had a wire connected to it that went back to the alternator.
Mechman screw me up. 2011 toyota sienna mini van problem with 240a s series voltage and amperage
in MechMan Alternators and 12v Accessories
Posted
Like some of the other members have stated, you can't clamp a HO alternator at low RPM's and expect it to do the rated output. I think you need to clamp it at higher RPM's and do a little more testing on the alt. Also you need to make sure all the connections are good and tight. When I installed my alt and the big 3 I left one of the stock wires off and realized that the alt wasn't charging because that wire that I had left off also had a wire connected to it that went back to the alternator.