Bo,
I don't know if OS will investigate the failed engine.
Overheating was not a problem at all. Ryan did an excellent job of ducting air over the engine and through the inside of the fuselage. After a flight the engine was very reasonable temperature and the ES pipe could be held by hand easily.
Ryan flew this plane in the AMA Masters class, not FAI. I did fly it through the F19 pattern as a test, and the plane did it with ease....no bad noises or vibrations from the engine or front end of the fuselage.
I only wonder if the weight of the large APC carbon prop (21x10.5) was some sort of an issue for the motor bearings. I'm only guessing.
-mark