[livi]

Thanks again, everyone. I have read all your posts repeatedly. I grasp the general laws of physics applied here but I am still curious as to what are the specifications in an engine that tends to give it relatively higher torque vs effect given a certain rpm.

As Randy mentioned, torque is what makes it difficult to stop a cylinder from rotating - is momentum a proper term in English? If so, what characterizes an engine with relatively higher degree om momentum? I instinctively suppose the general size of the engine, but specifically what parts? Or is that a mute line of questions?

Still confused but on a higher level. Thanks!