Charging System Question

So one limitation is saturation - I assume this is on the field - and then there is the limitation of the stator.

On these aftermarket rotors, if they are making a stronger magnetic field, then the regulator has to be making and breaking the field more often to try to control voltage.

It seems the industry has decided that its OK to use the '60 amp' rotor for everything.
The Chrysler parts books I've looked at so far show indicate for repair any alternator all alternators got the same replacement rotor except a 60 amp alternators.
For repair the 60 amp alts have their own rotor. There probably was a good for reason for that. One of these may be the current draw.

With the squareback Dana bought, the test sheet shows 6 amps. Way out of spec. per the FSM.
The same sheet shows it is capable of producing something like 70 amps (I forget the voltage and rpm) but at what cost? Does it 'turn on' at idle rpm? and even if it does, what's it doing to the circuit?

There's some Speedtalk posts from 2014 by 'BC Johnny' where he was discussing the ways alternators produce power. Seemed to know what he was talking about. Time for a reread.....
How Alternators are "Upgraded" - Don Terrill’s Speed-Talk