This is just a very gross draft of the actual engine;
Cooling;
With a mix of approx 2:1 (oxy
ropane), heat is directly proportional to the work (kjules). So the more power produced, the more liquid needed. We went with a 2:1 ratio for coolant vs combustion chamber volume.
I was just thinking about this:
The rib patterned rad could also act as a stator...