.. back to the topic..
I think at least the radiator management seems like a good idea, even for AH.
Even IL-2/FB doesn't model all detailed aspects of different engine management styles, and I very specifically notice the 1C crew are having problems in depicting certain aspects of the engine.
But the radiator control alone, and management of engine heat, should be fun enough.
Instead of what we have now, which the WEP automatically turns itself off when in 'danger zone', I'd like to see that as player controlled. Also, modelling different aspects of heating situations might also be fun - such as low airspeed fights with high throttle causing faster engine heating and etc.