Bernhard Joined Apr 20, 2011 Messages 5,773 Mar 21, 2017 #1 10 most strange engines; https://www.youtube.com/watch?v=R3oo7i1VT6g
grandpaul VIP MEMBER Joined Jan 15, 2008 Messages 13,239 Mar 21, 2017 #2 I like the free valve / camless engine. Looks be be the best near-term REALISTIC design.