I replaced my 13hp Honda with a 23hp Vanguard on my homemade LT. I went out and was running a 9X5 prop and it just seems like theirs so much more potential for speed. Ive had a few buddies say 10X8 and a few say 11X10... Im sure most on here know much more than they do so im wondering what you guys think.

I got a 9x6 on mine. What brand prop? What speeds? What hull? What kind of load?

Its a hill marine prop. Im not sure on the speeds but I run it on a 16 ft flat bottom. The load was heavier than usual with 3 guys a dog and all our hunting gear. The difference between my old motor and the new one just wasnt as big as I thought it would be and my buddies mentioned replacing the prop for a bigger one.

Do you know rpm's. With that load I would probably be around 15mph in a 1542.

I dont, my Tiny Tach will be here tomorrow and i'll throw it on and go run it and let you know...

what is the bottom width?
9x6 Godevil prop works best for me.
23LT on 16x42

I am interested to get a Gd prop. A lot of people are saying there is not enough cup in these backh2o props

I ran a 9X7 GD prop on my 23 GDLT, but that was on a 1542 flat. I then switched to a Stumpjumper which lasted longer than the GD and then to a BBlades for even longer life.