Injectors, Turbos, & Outdrives
Phil your ratio is 1.78:1 and you run A3s, mine is the more common in Blackmans 1.95:1 and I run A4s; 3400 RPMs on mine fully loaded is about 18-20kts. For some reason they say the 1.78:1 unit is stronger than the 1.95. The turbo blades don't usually get damaged; the bearing is the first to go south from lubrication problems and wear. My buddy with twin TAMD-41s has that magnetic conditioner and he swears by it! It really cleaned up his fuel tank and now when he gets to the second half of the tank he's not changing fuel filters every 3 running hours! You might also check your aftercooler and make sure the element is not clogged with oil.