Is this OK! Please Help!

[ifishhard]

Well i just got off the phone with the dealer where the boat was bought. She told me that this boat is supposed to top out at 61mph @ 5600 RPMS w/ a 4 BLADE PROP, 23 pitch! I have a THREE BLADE tempest prop 23 pitch. Could this prop cause issues with my motor??? The motor is a Mercury 150 XR6, on a x-18 xpress. I just bought this boat last week and the guy broke the original prop and put this one on her (3 blade 23 pitch).......So will the 3 blade cause engine damage???

 

[steelespike]

Re: Is this OK! Please Help!

Tell us your present speed and rpm.The motor is probably operating close to the specs they gave you.As long as the motor operates within it rated rpm range it should be ok.Where did she get the specs she gave you?From actual tests or a prop calculator?

 

[ifishhard]

Re: Is this OK! Please Help!

Tell us your present speed and rpm.The motor is probably operating close to the specs they gave you.As long as the motor operates within it rated rpm range it should be ok.Where did she get the specs she gave you?From actual tests or a prop calculator?

That is what she said the boat was rated for. I will look at my RPMS this weekend. So are you telling me as long as I dont go over 5600 RPMS I am fine??

 

[steelespike]

Re: Is this OK! Please Help!

Don't exceed the motors max rated rpm.I don't have the specs on the XR6 the ZR4 is rated 5,000 to 5,500.I'm sure someone here probably has the rating for your motor.Until someone tells you different stick with 5,500 to 5,600