For all those interested in the (Nippon) Denso 60 amp alternator conversion
I have some more news... It took me a while to find what I was looking for
but working at Toyota Technical Center does have some perks ! The alternator
in question is from a 1986 Tercel 4WD wagon with the 60 amp "optional"
alternator and a quite a few other models in the 1985 - 1995 time frame.  It
is available from your local Murrays or Auto Zone store  for about $150 US.
The good news is that it needs NO "conversion" and really lends itself to
aircraft application !  The "S" lead is for the "sense" and can be hooked
directly to the output stud. The "IG" or "ignition lead" should be routed
into the 5 amp breaker in your panel  and then your +14vdc buss. This
breaker does shut the alternator off like the old ones used to. The "L" lead
or light lead is for sourcing the negative side of a light emitting diode
(LED) for your idiot light on the panel. I will assume that everyone would
also have a 60 amp breaker on the output too. After running numerous tests
on a test stand on this one and a Honda version which has a slightly
different regulator this was the easiest to use.  Most of the time on my 360
it runs between 14 and 14.5 vdc and with the max load I can generate
including the gear pump it will only drop to about 13.5 vdc. I do have  an
old manual and could fax or e-mail  if you need...

Lloyd Dunlap
N214MM
810-225-9113