I favor the DynaCam, as it has the best pwr/weight ratio and will also provide the smoothest rotational power. I think it also provides the easiest packaging options. However, it is a gas engine (albiet one that will run on mogas or avgas).
On the diesel side, I like the Zoche and the DeltaHawk, both 2-strokes with four-cylinder 90-degree opposition which will also provide acceptably smooth rotational power. However, the Zoche line seems to be missing an engine right where you would want one, in the 180 - 220 HP range. Also, you would have to devise a cooling-fan arrangement for the Zoche.
I think the flat-four 4-stroke diesels will be too heavy and their power pulses too strong for your use.
Last edited by Flingwing207; 27th Mar 2005 at 16:24.