My second Subaru conversion was an '84 with the small VW starter that
came with the 1.9. I was cheap and used that small VW starter on the
Subaru 2.2

To make it a bit easier to start I took the Subaru battery ground wire
and ran that from the lower bolt on the starter to the frame, (drilled
a hole and mounted it there).

It helped, the starter worked well.

FWIW over the years on all the VWs I've owned I've found that for an
electrical problem, adding a ground never hurts.

That 84's headlights each had an extra ground wire attached just
behind the bulb connectors... couldn't hurt.

Rob
vwrobb@gmail.com