In digging through my boxes of "junk", I found a few old Super Tigre engines. Looking around trying to figure out what I had, I found this thread regarding G21 engines. I have a G21, but it dose not look anything like the ones you have posted pictures of. Can anyone here tell me anything about this engine? I also found a couple of old Super Tigre diesels, one of which I have also pictured. Rather unconventional looking to me, with the rear rotor and front crankcase split only.

The G21 with the rear rotor looks to be a racing engine? Any info would be appreciated. If it matters to you, both of these will be going "on the block" as they are not really my interest...

Arlen