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Author Topic:   prop

rollingstonesj46 posted 05-05-2007 03:53 PM ET (US)
I have a 15'ss with a 60 mariner it has a 15p prop , any thoughts on diffrent prop for more top end?
knothead posted 05-07-2007 09:08 AM ET (US)

What are your RPM's at WOT with a normal load?
regards---knothead
rollingstonesj46 posted 05-07-2007 02:54 PM ET (US)
Knothead i have no idea , dont have a tach.or mph. thanks anyway..
Tom W Clark posted 05-07-2007 04:40 PM ET (US)
I think the prop you have now is perfect.
rollingstonesj46 posted 05-07-2007 05:32 PM ET (US)
thanks tom, i guess ill leave it alone , or try to find a 90hp ..
Buckda posted 05-07-2007 06:03 PM ET (US)
From another thread by this poster:

quote:
rollingstonesj46 posted 05-06-2007 03:02 PM ET (US)
________________________________________
I guess this guy was rite about this site, you all think you are whaler pros, and dont , respond to ?, from lower class whalers.. what ever you guys can have your fun ..

I’m trying to figure out who “this guy” is, and where in the above post that you included anything that would give anyone the impression about “class”, besides the complete lack of it displayed in the above post from yesterday.
Perhaps you had a hangover from cinco de Mayo festivities?
Sounds like you’ve received some pretty good responses, given that you haven’t given us much information. With no tachometer, it is difficult to dial in a prop/motor combination. Given that the ideal situation allows the motor to rev to max RPM’s without going over…that’s tough to do with no tach. We’re left with guesses as to the best configuration for your rig. Given that one of the most respected and knowledgeable prop guys on the site has endorsed your current propeller, I think you’re set.
Regards from the lower, lower class Whaler pro from under the bleachers.
Dick E posted 05-07-2007 06:08 PM ET (US)
Hey Rolling:
First thing you need to find out from your manual or a dealer what RPM your motor should run at Wide Open Throttle (WOT).
Then you need to borrow or buy at TACH and see what the current prop is running.
A 2" inch INCREASE of pitch in your prop will LOWER your the RPM's by about 300-400 RPM.
A 2" DECREASE of pitch in your prop will INCREASE your RPM by about 300-400 RPM

Having a motor turning significantly different then the recommended RPM at WOT will shorten the life of your motor.
Ideally you want your prop to run at the upper end of your recommended range.
jimh posted 05-07-2007 10:04 PM ET (US)
lok behin u ur bridg onfire

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Author	Topic: prop
rollingstonesj46	posted 05-05-2007 03:53 PM ET (US) I have a 15'ss with a 60 mariner it has a 15p prop , any thoughts on diffrent prop for more top end?
knothead	posted 05-07-2007 09:08 AM ET (US) What are your RPM's at WOT with a normal load? regards---knothead
rollingstonesj46	posted 05-07-2007 02:54 PM ET (US) Knothead i have no idea , dont have a tach.or mph. thanks anyway..
Tom W Clark	posted 05-07-2007 04:40 PM ET (US) I think the prop you have now is perfect.
rollingstonesj46	posted 05-07-2007 05:32 PM ET (US) thanks tom, i guess ill leave it alone , or try to find a 90hp ..
Buckda	posted 05-07-2007 06:03 PM ET (US) From another thread by this poster: quote: rollingstonesj46 posted 05-06-2007 03:02 PM ET (US) ________________________________________ I guess this guy was rite about this site, you all think you are whaler pros, and dont , respond to ?, from lower class whalers.. what ever you guys can have your fun .. I’m trying to figure out who “this guy” is, and where in the above post that you included anything that would give anyone the impression about “class”, besides the complete lack of it displayed in the above post from yesterday. Perhaps you had a hangover from cinco de Mayo festivities? Sounds like you’ve received some pretty good responses, given that you haven’t given us much information. With no tachometer, it is difficult to dial in a prop/motor combination. Given that the ideal situation allows the motor to rev to max RPM’s without going over…that’s tough to do with no tach. We’re left with guesses as to the best configuration for your rig. Given that one of the most respected and knowledgeable prop guys on the site has endorsed your current propeller, I think you’re set. Regards from the lower, lower class Whaler pro from under the bleachers.
Dick E	posted 05-07-2007 06:08 PM ET (US) Hey Rolling: First thing you need to find out from your manual or a dealer what RPM your motor should run at Wide Open Throttle (WOT). Then you need to borrow or buy at TACH and see what the current prop is running. A 2" inch INCREASE of pitch in your prop will LOWER your the RPM's by about 300-400 RPM. A 2" DECREASE of pitch in your prop will INCREASE your RPM by about 300-400 RPM Having a motor turning significantly different then the recommended RPM at WOT will shorten the life of your motor. Ideally you want your prop to run at the upper end of your recommended range.
jimh	posted 05-07-2007 10:04 PM ET (US) lok behin u ur bridg onfire