Make a Boat Faster
Difficulty: Moderately Easy
Clean your boat's haul. If your boat is moored on the water for any length of time, algae will start to build up. Over time this growth on your boat's underbelly will cause drag and reduced the optimum speed. Some boat owners suggest keeping the boat waxed, to further reduce drag.
Check with a prop shop, to see if your boat's prop is the best choice for your boat, and if there is another design that will improve the speed. Damaged props can also reduce a boat's speed.
Tune up your boat's engine. If your boat's engine is not working to its full potential it will affect the maximum speed it can achieve.
Lower your bimini top or remove any aluminum shade covers. If you desire speed over shade, remove those covers that will cause drag. But, if shade is a priority, be prepared to sacrifice speed.
Balance your boat. If the load in your boat is unbalanced, this will cause drag. Are all your passengers sitting on one side of the boat, causing the boat to lean? Distribute the weight evenly.
Remove some of the excess weight in your boat. If your boat is hauling around unnecessary cargo, lighten the load. Less weight onboard will help your boat move faster.
Buy a more powerful engine. If your boat is an outboard, you might consider upgrading to a larger engine. Be certain your boat can handle the new engine.