This engine, cooled by a realistic GLOW Cooling System, works with water! :D
Open the simulation to see how (and to enjoy) ;) ..!
That's very clever! Maybe the GLOW cooling system could be made more compact, but that's just my opinion.
Well that's just like, your opinion man.
https://powdertoy.co.uk/Wiki/W/Using_automatic_PIPE_tracks.html
You might find this handy. It'll make it lag less, and pipes will transmit faster if you can do it right :P