#1 People just dont buy an engine in the "50-100cc range" Thats a wide range and you have to match the engine to the plane.
Not all aircraft come with an engine suggestion on the box. My application would do fine with anything in that range.
Find the engine size and weight that's suitable for the size of th plane you intend to fly for awhile
Thats precisely what I'm doing.
Maybe you guys misunderstood me. I'm doing this to help myself choose, not neccesarily to provide a comprehensive reference tool. The engines I listed are the ones I'm interested in seeing numbers on. So that said, do you have any numbers you could share please?