From what I understand, engine overheat is gamey BS and is in no way a model of realistic engine behavior.
As to the flaps, as long as the simply get ripped off of the P-38 (let's be honest, that is the aircraft in question) at 251mph and is a setting like combat trim, sure. If it is, as the P-38 drivers want, a free kill at the expense of their flaps, then no way.