wrote:
Unless you've already got one, don't mind the craft shaking
itself apart from the inherent imbalance, and can live with the cylinders
frying themselves, think something other than a harley engine. Air cooled
engines work poorly in automobiles, less poorly in motorcycles, and
moderately poorly in airplanes. The inherent problem is that making power
makes *lots* of heat, and in order to remove it with an air-cooled engine
you need a large temperature gradient. This requires CHTs on the order of
400 degrees, extra-special valve construction and materials, cylinder
barrel choke, higher octane requirements, etc, etc. If one's going to go
with something that isn't certified, at least use the best technology
available and use liquid cooling. Cooler, more efficient, roughly the
same weight, less cooling drag, etc, etc. I'm partial to the EA-81 Subaru
engine, but of course I use the same one in my daily driver car...

-Cory

Thanks, Cory, but the point is it's a replica, and I'm trying to make it
look as much like the original as possible. I don't expect to be doing
long cross country trips in it, unless it's a hundred miles at a time. :-)

--
David Hill
david at hillREMOVETHISfamily.org
Sautee-Nacoochee, GA, USA