So when your boat is running it displaces water right? If you watch behind your boat when youre running the water rises back to level directly behind your boat, and actually forms a hump above water level. The farther back your motor is, the closer it is to the point where water rises to fill the displacement void. The cavitation plate will keep the turbulent water down around the prop and intake. If the motor is on the transom it is in the heart of the displacement. Move it back and the water level is higher. Of course a 48 inch setback doesnt mean you can raise the motor 24 inches. The equation has limits.
The same science works with a tunnel hull. It allows the water to return to level far before it reaches the motor. Also the motor sucks the water up once on plane allowing you to jack the motor up even higher than the water level.
Does that make sense??
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Yes -- so you are putting a plate like a sea drive on the transom to move it back?FishTX4Life wrote:So when your boat is running it displaces water right? If you watch behind your boat when youre running the water rises back to level directly behind your boat, and actually forms a hump above water level. The farther back your motor is, the closer it is to the point where water rises to fill the displacement void. The cavitation plate will keep the turbulent water down around the prop and intake. If the motor is on the transom it is in the heart of the displacement. Move it back and the water level is higher. Of course a 48 inch setback doesnt mean you can raise the motor 24 inches. The equation has limits.
The same science works with a tunnel hull. It allows the water to return to level far before it reaches the motor. Also the motor sucks the water up once on plane allowing you to jack the motor up even higher than the water level.
Does that make sense??
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