Re: Overpower my boat
hoa;<br /><br />Your first post indicated that you had installed twin 100 Hp four stoke Yamaha's and this was a replacement for 60 Hp engine. Needless to say this has added a great deal of weight directly on the stern. You have seriously changed the balance of the boat. <br /><br />As stated in the previous posts for your question, I do not think you will get the lift you need to allow the boat to troll with the bow in a comfortable position, or come up on plane easily. You will likely notice some difference, however not what you should or could get. Your looking at a $60.00 investment, your time, a few holes in the cavitation plates of your new motors, and you will find out one way or another. I am assuming you will be running in the Pacific, and the best trolling for game fish will be about 12 to 15 knots, the bow will be high.<br /><br />Also, don't run hard in the Pacific chop with the hydrofoils, as you boat will be stern heavey and the cavitation plates were not designed to take this stress. <br /><br />If the hydrofoils do not work out, you should remove them and install Trim Tabs ( Smart Tabs or helm controlled trim tabs).<br /><br />By the way, if you put the trim tabs on the boat you would not need to reduce the pitch so dramatically, and would improve both RPMs and Top Speed. Keep in mind by reducing the pitch you will be turning the engine ( from 19 to 15") 22% more every mile which will increase fuel cost, especially at trolling speeds. You will pay for the prop change and the hydrofoils every time you leave the dock. You may want to come down in pitch but in my estimation that is too much. <br /><br />Trying to fix small boats handling and performance issues with the motor and the prop is a very old and tradiiontal compromise.
