Posts: 3480
Location: Elk River, Minnesota | Hiya,
Assuming you are going to use a stainless prop on this boat, I'd be tempted to mount the motor as high up as it can go on the transom. Reasoning is that the anti-ventilation plate can be up around 2" above the lowest point of the transom...sometimes higher depending on the power to weight ratio of the rig.
If you mount it as high as it can go, take it out and test it there...get up to speed and make a moderate turn. If the prop holds, you could potentially go higher with a setback or small jackplate (if you do this, get a water pressure gauge). If the prop lets go and you gain RPMs, trim it down just a touch and do it again. If it holds with a little down-trim, you will be in a very good position for the rig.
There are always trade-offs when you raise or lower your motor: Raising it increases speed, but it also decreases handling to some extent, and will increase prop slip. Lowering the motor loses speed, gains handling, and the prop stays hooked up better.
Regardless of make/model/brand, etc. I'd say mount it as high as you can, test it and see how it goes. If it is not performing(handling) like you want, move it down a hole and test again...
Once you have that, you can play with props, which may allow you to move the motor back up...
Should be a nice set-up and a mid 50's or more for speed...
Steve |
