I'm doing a project that involves knowing the average steady-state heat dissipation rate of a single cylinder air-cooled engine (through the engine wall and fins) at a given RPM. The problem is that I cannot seem to find any research regarding the same. Most of the data available out there revolves around the measurement of the peak heat flux across different components(piston, wall, etc.) at various crank angles.
At this point, even a rough value would be good enough.