Prop selection for a 4M Searider with Nissan 40 Outboard
I have a 1990 4M Avon Searider with a 40HP Nissan and would like to know what diameter/pitch prop you are using with how much weight in your boat. I'm currently having trouble getting out of the hole with 3 people and a full 9 gallon fuel tank (probably partly due to the flooding bilge), but she runs strong once she is up on plane. My current prop has 2 identifying marks (P1922 and U524), but I have not been able to link that to any manufacturers dia/pitch, so I'd like to know what dia/pitch everyone is using as a starting point.
I'd like to beleive that I currently have some equivalent of the stock recommended prop (11.6 dia x 11 pitch), but can not confirm that. If I do have an 11 pitch prop, I think I need to drop down to a 9-10 pitch to get out of the hole, and give up some top end. Any thought?