Prop Pitch for '99 Johnson 115

[74Baja]

Hi, I have a 1974 16 foot Baja speed boat. I have a mid 1970's Johnson 115 on it now but that engine is shot (blown piston ring). I have an 18 pitch stainless steel Raker prop on it now but I am buying a '99 Johnson 115 to replace the old motor. the old engine ran at around 5500 RPM WOT. I know I have to prop up since they changed to prop rated HP but I dont know how much. Also, just curious, is the '99 Johnson loud or is it quiet like all the other new ones?<br />Thanks.

 

[74Baja]

Re: Prop Pitch for '99 Johnson 115

anyone?

 

[syl]

Re: Prop Pitch for '99 Johnson 115

Hi there i just wanted to know what are u doing with your old motor because i have the same old motor and i would like to have the parts for it ok let me know if i can get it of you thanks.

 

[walleyehed]

Re: Prop Pitch for '99 Johnson 115

74Baja, the same prop will most likely give the numbers you need.

 

[74Baja]

Re: Prop Pitch for '99 Johnson 115

syl, I am giving it to my mechanic for $150 sorry