I have a homemade 9hp longtail, on a 16' large semi v boat. It is used for hunting, usually hauling 2-3 people and carrying over 200 pounds of gear. Due to a horsepower limit in the hunting area, I must use the 9hp, and with such a large load the boat does not get on plane or have the ability to get through thick mud. I would like to know if using a three blade prop would increase speed, I am currently using a two blade 8'' prop like the one used on 9hp go devils. Since I am not looking for performance, but just more speed, would a larger prop help me. Or could someone recommend another solution.

Thanks

If your not allowed mods and your set on that size boat, than your only option is gear reduction (Belt drive).

Last year a friend and I modified his 27 LT from straight drive to a 1.5:1 belt driven. He gained 3-4 mph and his load capacity went up as well.

X2 on gear reduction. The 9hp crawfish model from go devil already comes with gear reduction and allows you to turn a bigger wheel.

Preston has a friend?

amateur hour here guys. Throw a 35 on the backof the boat and put a 9hp sticker on it. Been doing it for years with outboards and never had any trouble. Just don't open it up when people are around.

Get rid of the mod v and get a flat....that might help some.

Get some paddles and pushpoles for the people ridin wit u....that will be a big help,specially in da mud!