Posts: 3488
Location: Elk River, Minnesota | Hi Matt,
First and foremost, finding out the diameter will be a big issue here. With the selection of props out there to choose from, you could quite easily change close to a full inch in diameter, which would equate to roughly 400 rpms in the same model of prop, and significantly affect the handling of the boat. So..before changing out a prop, let's get that figured first.
Second, if you are running a steel prop (which on that rig I would HIGHLY recommend) that motor can probably come up to the third or even the 4th hole depending on how tall the transom is to begin with, and whether or not the transom has a setback as well. Gut instinct tells me you can go up all the way if you run a good aftermarket steel prop. If you are running aluminum, the best you might be able to do is up two holes...after that, the prop will blow out.
On that rig, though...a good steel prop will be a good thing for handling, overall lift (both bow and overall) and it will help an over-rev as well. On a big V-6 like that, steel most definitely will out perform aluminum.
One thing with torque...if you cannot trim up, that torque will be excessive...when you trim up, torque is usually reduced tremendously as well.
Rev limiter is what rpm on that motor...6500? Also, what kind of speed were you seeing at that point? Establishing a baseline is what is needed....then from there, we can start the plan to change things.
Steve |
