I used the 90 amp alternator that came with my I4 that I used in my
'82 westy. Was great.
Powered all the stuff up front... 2 batteries, higher powered
headlights and aux light.

I did run 2 extra 8 gauge wires up front , from battery that was in
engine compartment. I recommend adding another power feed.

alistair

PS same alternator now in my syncro, swapped it in as the original
has, I think, diode problems. So that old alternator is still pushing
electrons.
On 13-Jun-10, at 7:47 PM, Don Hanson wrote:

   It's my understanding that most VW Van alternators are like
65amps?  I'm
guessing that is what I have... a Bosch rebuild..That is what is on my
inline 4 Golf motor in my 84 van.  I am in the process of swapping in
a 2.0
liter Jetta bottom end for a bit more oomph and because there are
under the
piston oilers on the Jetta, but not on the 1.8 liter Golf...and
because I
got a good Jetta motor for a hundred bucks with quite a bit fewer
miles on
it than my current motor.

   So anyway, the "new" motor came with a newish looking rebuilt
Bosch 90amp
alternator.  Should I use that one rather than the smaller one?  Any
advantage?  I have two batteries in my van, one for starting and one
for the
other stuff..both are 'starting batteries' not deep cycle.  I don't
usually
run out of juice when camping.  But I do have some macho lighting that
likely draws a lot...two KC daylighter driving lights, a Unitiy
spotlamp and
the Hella E-code headlamps.

   What say you electrical guys?  Go with the bigger output
alternator?  I
have power "nothing"
  in my van if that makes a difference..

   Don Hanson