wrote:
I should mention here that yes, the Cub has flown behind a BIG VW
conversion... but not very well. A big-bore stroker such as an 84 x 94
(142cid) is a close match to the Lycoming O-145 (which many people will
literally GIVE you to get rid of them) but simply does not have the
low-rpm torque needed for this type of airframe. Ditto for the little
1834cc conversions, which are a close match for the A-40a (ie, 112cid).
Basically, you'll end up with a single-place Cub having a minuscule
ROC that needs its valves topped every 200 hours. Cheap, but you can't
fly it off floats, haul a heavy, etc.

The best part of the joke is that unless you are up to your elbows in
old Volkswagens, rebuilding a run-out O-200 will usually cost LESS
than building up a RELIABLE good big-bore stroker :-)

Either way, you've got some fun ahead of you. Good luck with it.

Sounds like fun . I've actually been very interested in the idea of
using one of the Corvair conversions in a plane for a long time.
I'll likely hold off a bit on engine choice until I have a good
semblance of an airplane built, but these engines usually give 110-115
hp which should be rather nice for a Cub airframe.

Mike Gaskins