I have a ProMarine MTR I have been experimenting with the last few months. I tried a higher kv 40mm motor and 200a esc, with a cnc 42mm prop and had bad luck. I was trying to spin the motor way to fast and it was drawing on the esc and overheating things.

I now have a ZTW 200a ESC, and SSS 4092-14000kv motor setup that I would like to try out. My question is where should I start with props? The boat is a 34" Cat, I am strictly going for straight line speed, I do not race this one. I was thinking I need a larger diameter prop, but I am not sure where to start. I want to keep things running as cool as possible, and maximize performance. Any help will be greatly appreciated.