AI'm not sold on a particular engine yet, but I'm thinking about perhaps using a Mazda 13B rotary engine, since the rotary engine seems to be relatively light by the nature of the engine--less parts, more hollow areas of the engine...but the same horsepower. I'm also looking at the rpm where the most horsepower is developed.
The Mazda engine needs a reduction unit since it is not efficient below 5000 RPM. In fact, higher is better. You will rapidly run into a weight problem for the KR2. I love the rotary, but only on a bigger plane. If I ever build a Cozy or Velocity, it will be Mazda powered! Larry Severson Fountain Valley, CA 92708 (714) 968-9852 [email protected]
