Posts: 3480
Location: Elk River, Minnesota | Hi again,
Question for you on the boat...when you trimmed the motor up at full throttle, did the bow come up easy? If not, that very well could be one main reason why your speed was so slow. Without actually seeing the boat run, it would be hard to determine, but if the boat seems to plow while you are on plane and trimmed up to the point where the motor will ventilate but no speed gained, there might be a tweek to the boat that can be made to get the bow to rise a bit more. It would require the use of a hammer to the trailing edge of the hull, right where it meets the transom behind the rivet line (there will be about 1/4" of aluminum at that point. What can happen is when the hull is riveted to the transom, a slight hook can be made in the hull on the little 1/4" trailing edge. Although minute, it can have a huge affect on the attitude of the hull while on plane and really affect the ability of the motor to lift the bow. To alleviate this, it would be a matter of pounding the trailing edge of the hull upward to close any gap along the transom line. This is not an uncommon thing to do with a riveted hull. By peening up the hull right at the transom, water will flow off of it with less resistance, thus allowing the bow to rise. If the bow is plowing quite a bit, that will keep your RPM's down and you will be well short of the speed capabilities of the boat.
Steve |
