> Randall wrote:
>
>
> >>Here's a $64 question - why did the rpm's increase as the coil voltage
> >>decrease?
> >
> >
> > Beats me.
Michael D. Porter replied :
> Could be that the residual current is not enough to do anything but
> marginally energize the alternator field, so the load on the engine
> from the alternator is much smaller
I'm fairly certain that's not the case, Michael. The same voltage that is
powering the ignition through the resistor is also powering the alternator
field through the regulator. Remember he measured 10.5 volts at the coil,
which is plenty to power the alternator field to better than 50% of capacity
at least. And since that was after the 5 ohm resistor, the voltage at the
regulator is probably even higher (like still 14.4).
Randall
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