Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Mate
Posts: 2
Registered: ‎03-10-2018

prop choice

I have a 2006 deck boat with a 150 etec, love it so much I am getting a g2 300 for my new robalo r247. Its a heavy deep v with a 22 degree deadrise. I am not worried about the hole shot...looking for best top end i can get. Looking at etec rigging pdf data im thinking the raker HO would be the best choice. Any thoughts would be helpful, im not sure what pitch....

Admiral
Posts: 8,406
Registered: ‎07-14-2011

Re: prop choice

Propping for the ultimate speed requires trial and error. 

 

Pay close attention to and adjust engine height for best performance. The Evinrude E-TEC G2 normally can be mounted higher on the transom than other motors. Use a water pressure gauge for reference when moving engine heights.

 

Your best prop for speed will probably be the Raker HO or the RX-4 on that type of boat.  My guess is that the RX-4 will be the best all around prop for that rig. Work with your dealer to find the correct one for your application.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Mate
Posts: 2
Registered: ‎03-10-2018

Re: prop choice

thanks, any thoughts what pitch you'd start with?

Admiral
Posts: 8,406
Registered: ‎07-14-2011

Re: prop choice

[ Edited ]

 

 

Start with a 20" to get a baseline, and adjust from there depending on your speed and rpm results. For the best speed, prop for about the middle of the rpm range.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Skipper
Posts: 7
Registered: ‎03-11-2016

Re: prop choice

Follow up question on props...When going from a Raker 20" that is pitched correctly with excellent top end and good hole shot (with tabs down), what is the recomended pitch for a Rogue 4 blade?  I know it doens't come in 20" so would a 19" be a good choice or would I go higher to a 21"

 

2018 E-TEC 60 

Captain
Posts: 215
Registered: ‎09-12-2016

Re: prop choice

[ Edited ]

I would think an 18 based on my experience. You will loose rpm for two reasons. The Raker is a bow lifting prop which increases speed and rpm, the rogue isn't.  4 blades are generally harder to spin because of the extra drag. I use a 20 inch rx4 (4 blade) and a 22 inch Raker on my boat.

Admiral
Posts: 8,406
Registered: ‎07-14-2011

Re: prop choice

 

 

What kind of boat, top rpm , and top speed do you get now?

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Highlighted
Skipper
Posts: 7
Registered: ‎03-11-2016

Re: prop choice

I have a 17' flats boat 6 degrees of deadrise, shallow draft.  I am getting 38 MPH gps at 5750 rpm.