Researching a circa 2000 ovation vs TLS/Bravo. I realize the IO 550 is flat rated at 280 HP although it is in reality a 300 HP motor, and the new G model is rated at 310. Is the flat rating accomplished through a governor that only allows the throttle body to be opened 75%, or how is it de-tuned? Also, is there a mod or update that allows for limited 100% power during climb out? I understand that heat is the big issue, and that the cowl venting is limited for the big IO 550. Just curious as to how Mooney solved this issue with the newer airframes.
