There was a boat at my marina a few years ago that had 225s. It was a Marine Trader aft cabin 41 ft I believe.
He used to run at 15 to 17 knots on plane when he could. He never had any issues with the coolers or turbos, but he only owned the boat for 3 or 4 seasons.
That is about the sum of my knowledge regarding the 225s.
Good luck with your decision.
New Port Richey,Fl