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[QUOTE]Originally posted by Tom Renzo: [QB] You see people change alternators expecting they will charge like crazy. But most alternators even when upgraded too bigger units still have to spin faster to work at idle. There is not that much difference when an engine idles unless you change the pulley ratios. By the way if memory serves me the 3G is DELTA wound. Normally i use a GM alternator to have a much better charging system. Gm normally charges on the higher side and in my view a much better ALT. NOTE if you go to small a pulley on the alt to speed it up you can have issues with over speeding the alt and that is an issue that can get ugly in some cases. Measure your pulleys and do the math. Rule of thumb ALT speed should be 2.5-3 times faster than engine RPM (GAS ENGINES. Diesel Engines run more ratio app 4-1 for obvious reasons)!!! Hope this helps! [/QB][/QUOTE]
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