Electrical charging problems

67Dart273 said

Actually the original 46A squareback, so I'm talking about "as Chrysler produced it" and not some pirated, mexicanated, chineseoated "rebuild" puts out better at low RPM than some of the larger rated alternators, and absolutely better than the older roundbacks. In other words the output curve is not linear.

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They really aren't linear on any alternator curve I've ever seen. Pretty much a logarithmic curve. In any case, with the pulley ratio which is let's guess 2.5:1, the alternator is spinning at 1500 rpm at 600 rpm idle and 2250 at a 900 rpm idle, which probably moves the speed up the curve enough to make it work correctly.

One thing I do know is it's definitely not 46A @ 600 rpm engine speed. Probably more like 25 IF everything was in perfect order. I'd still guess there's a lot being lost through the harness that doesn't get delivered to the loads or battery.