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Adamdavid

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Posts: 27
Reply with quote  #16 
Quote:
Originally Posted by Huey
Yes it does, believe who you like. A Rogue prop is the best prop from stern heavy boats like a tiller model and second from top would be hole no.2 and your call if you want to see about raising it. If you are certain it is accurate WOT RPM and can not comment on Apollo props or if it is even a SST prop. If you want top speed go with the 19 inch Rogue and the revs would drop a little to be around the sweet spot or stay with 17 inch if you want out of hole performance and carry big loads. If the current prop is an alloy prop, a Rogue can handle higher transom mounting heights.

Huey, rpm is correct.
I tried an old 349948 (ss 13-3/8x17) on her yesterday. 5600 RPM 37 to 38 mph. Excellent bow position, acceleration, bite on turns/ventilation slightly better. My concern is rpm is a little high- of course I could trim down slightly and keep it at 5500.
I would like to possibly go up to 19 pitch in a brand new prop and hit 5200 if that would be best, thoughts? My concern was Rogue as a 4 blade is less top end?
Tiller_man_I_am

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Posts: 9
Reply with quote  #17 
I want to try a rogue as Huey suggested, I currently run 13 7/8x17 viper and found a 13x19 rogue would this work or do I need a bigger diameter? I assume since pitch is up and its a 4 blade a smaller diameter would spin about the same rpm?
Huey

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Posts: 13,468
Reply with quote  #18 
Diameter just go hand in hand with pitch and the pitch is the most important thing in determining RPM. You can not say I want a bigger or smaller diameter 19 inch anything. If you are at the higher end of the rev range with the 17 inch Viper you will be OK with a 19 inch Rogue. If in the sweet spot now the 19 inch might be too tall. The Viper and Rogue turn similar WOT RPM.
RichardNZ

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Posts: 5
Reply with quote  #19 
I'd think the hull is the issue with bow lift , it's a tiller after all you should find a angle that works well for acceleration and top speed while minimizing the bow lift and cavitation, it's not going to go away too much rear weight being a tiller.You can stop it by designing it out but you lose ride , you need to see the boat as a spring and shock absorber in one , the only true fix is proper weight distribution, forward or center console is the only option then you add trim tabs for load leveling.
Trust me either the motor is installed wildly wrong or you wanted it to be something it is not.
Tiller_man_I_am

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Posts: 9
Reply with quote  #20 
No cavitation or any real problems. I just want it to plane out without the bow having to raise so high up, the bow gets to about 30° angle before I get on plane I also want it to hold plane at lower speed. There is no real way to redistribute weight as its the design of the boat.
Adamdavid

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Posts: 27
Reply with quote  #21 
Quote:
Originally Posted by Tiller_man_I_am
No cavitation or any real problems. I just want it to plane out without the bow having to raise so high up, the bow gets to about 30° angle before I get on plane I also want it to hold plane at lower speed. There is no real way to redistribute weight as its the design of the boat.

Less pitch will plane faster and with a lower bow.
I have a lot of propellers and don't mind buying more sometimes you have to try a few I am also going to try rogue.
steelhead

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Posts: 3,479
Reply with quote  #22 

Start by moving the transom bracket tilt setting pin in for max negative tilt and test.

If the stern lifting Rogue does not hold the bow down enough on hole shot, try one of the planing devices that attach to the antiventilation plate or there are smaller size automatic lift tabs that attach to the transom.
Both can lower mpg and top speed due to drag.

The E. SSP prop is available in sizes that fit the I3, good stern lifter with trailing edge cupping, may have slightly more top end speed than a 4 blade.

Correctly propping a boat is lots of trial and error, what works on same boat model may be different results for different owners
All depends on what is the highest priority.

Tiller boats can be dangerous, especially with a wild hole shot motor like the E-TEC.

Adamdavid

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Posts: 27
Reply with quote  #23 
With the rogue 13 x 17 wot 5100 RPM 35.6 mph no ventilation cavitation plate appears to be less visible going to raise the motor one hole to hole number 3. The boat rides much better different posture better over chop, turns better a lot more hooked up.
Adamdavid

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Posts: 27
Reply with quote  #24 
Raised the motor to hole number three. 36.9 mph at 5400 RPM. 2019 Lund pro guide 1675. Evinrude 2018 60 high Output . Rogue 13 by 17
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