Improving motor performance

[asdfgh]

Hey I have an 8hp trolling motor but it goes slower than most 7.5hp motors. It runs smooth but I just can't seem to get any speed from it. Does anyone have any sugestions on how to increase the speed, or on what kind of prop I should look into?<br /> -thanks in advance

 

[JB]

Re: Improving motor performance

Need more info, asdfgh.<br /><br />What boat is your engine on? What make, model and year is your engine?<br /><br />What causes you to say it is slower than most 7.5s? How are you measuring this?<br /><br />In general, your speed is probably limited by the displacement speed of your hull. Making it go faster would require an engine capable of planing it.<br /><br />The health of your engine can usually be closely determined by measuring the rpm at WOT and inspecting the spark plugs.<br /><br />Optimum performance can be achieved by careful tune up according to the service manual, thorough cleaning of the boat hull and fine tuning of the mounting position.<br /><br />Let us know what you have.