Kevin-Young
70cc twin V2
It's awesome that everyone is so willing to offer real world experience. That's basically what my motivation is. How else do we all gather info. Short of doing everything ourselves. Hope your friends was just a weird one.
I think a couple of two's into one's would be awesome.
We are probably going to do a 2n1 standard type muffler setup on his when he gets it back because we found with testing the DA-200 that having one single outlet pipe like the stock 2n1 mufflers actually restricts a lot and you can loose a couple hundred rpm.
Ultimately I don't think I would recommend the engine for an aerobatic airplane but it could be good for something with a short coupled nose, like our 1/3 scale taylorcraft.