Maybe some of you; like me; are looking for a small alternator.
Uses a 15mm shaft (RX7 std) so you can put your pulley on it if
different from 1-V belt.

Dimensions:
Diameter - 4 inches
Length - 4.5 inches
Mounting holes center to center - 5-3/8 inches
Weight = 5.5 pounds

http://goo.gl/jBUvJ.qr  $74

Can be run as a 1-wire or remove the plastic cap on the back of the
alternator
and with this plug; get remote voltage sensing; idiot light and remote
shutoff

http://goo.gl/pHxNW.qr  $15

Fits very nicely on my 88' 13B just above the water pump inlet.

Brian
http://tinyurl.com/4t69z5p