This is a continuation of another thread (kind of): https://www.scienceforums.net/topic/46143-stirling-turbine/?tab=comments#comment-1148735 but it is also something of a fresh start. So, I'm here starting a new thread  To get right into it, I purchased several identical Stirling engines from https://www.stirlinghobbyshop.com/ that is not a promotion, just a fact. What I liked about these were they came in kit form, so I could do various modifications. The first modifica