Posts: 3480
Location: Elk River, Minnesota | Hiya!!
On your particular rig, a 4 blade is something in my humble opinion you should not need. The vengeance propeller is a decent all-around propeller, but does not have the trailing edge cupping needed to stay hooked up as much as say a tempest propeller.
I'm curious as to your top speed when you are trimmed out just before slipping, and am also interested in what bolt hole the motor is mounted in on the boat (i.e.. one bolt hole up, flat on the transom etc)
These are two variables to which can say a bunch about the set-up of the boat/motor/prop combination, and with that information, I can offer an opinion of what I think you might be able to do with the rig.
From the outset, I do feel you should not need a 4 blade on that boat as the lund boats ride high in the water and run fairly flat to the water as well (not a high-bow ride). After looking at the vengeance prop specs, I think what you have is basically a steel equivalent to a stock aluminum, which will give you just a touch extra performance things...a touch more handling (very little) and maybe a touch more speed. The prop is more or less going to be one that is essentially more durable that the equivalent aluminum propeller.
Due to the size of your motor, mercury has a very limited selection of propellers to go from. my suggestion is to look at some aftermarket props that have an aggressive prop design. One that comes to mind is a michigan Ballistic propeller. That is a very aggressive design, and it will have the lifting and handling capabilities I believe you are looking for. This is just a starting point for looking at props, though... something that has high rake and good trailing edge and tip cupping can and will do wonders for your rig.
Steve |
