[Teemo]

Hello!

The Bourke engine seems indeed genial. Having put a lot of thought into it I must conclude that:
-It is so much misunderstood because it uses RESONANT effects that are not propery documented. This is why it is hard to duplicate, all the air and exhaust channels must be exact length and shape.
-It uses some kind of partial internal EGR that makes it so efficient
-The Bourke left some important aspects to himself because of the fear of being rejected from manufacturing the engine.
-The engine may be unstable at low or changing loads, this may be why it is not had wider use.

Let's hope that we can soon hear about successful refabrication of this magnificent engine, and have better proof of its real value.

Regards