I had the same motor in a Geico 24 and it ran 43mph with a 42mm Prop. I sold the boat but I have a short video. It would lift off once in a while but it ran really well. I used a Seaking 90a ESC and 2 2200mah 50c 2s Batteries. The Prop was a VXP V-Cut I believe 1.8P from Ebay. I loved the boat but ended up selling it a while back for another project.