Ranjit Phelan of australia is one of the worlds top pylon racers and he builds his own motors. He was the only competitor at the last world champs to have built his own model and motor, with which he placed 4th. Also all of the Australian team used Ranjits RPM engine and the team took 3rd place. There are some very keen engine builders throughout the world, and my hats off to them .
Stewart