Is my motor Underpowered?

[88seville100]

My boat is a 17' weighing just around 1500 with a 100hp mercury. The boat tops out at about 30 on calm waters. shouldnt the boat be a little faster than that with that size motor?

 

[jerryjerry05]

Re: Is my motor Underpowered?

It depends on how much a load you have.What RPM are you running at WOT?
List all the info RPM/people/coolers,size prop,etc,etc. Jerry

 

[88seville100]

Re: Is my motor Underpowered?

i was at about 5000 rpm with me just me and a friend. Im about 200lbs and the friend about 120lbs. nothing else really in the boat. just a rod. prop is a 17".

 

[jerryjerry05]

Re: Is my motor Underpowered?

The first thing I should have asked was did you do a compression test.Low comp will affect performance.If the comp is good.That motor should run 54-5500RPM at wot. If the pitch is 17 you might look at a 15pitch to bring the RPM's up and that should increase your speed. Good luck,J