05 Evinrude 115 - 24 Foot Tri-Toon: Prop???

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Bip17

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Jun 21, 2010
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Currently I have a aluminum 13 7/8 X 13 stock prop on the boat. Getting 21 MPH on the GPS at around 5100RPM. Want more top end speed. Any suggestions? Thank You.
 
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steelespike

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Re: 05 Evinrude 115 - 24 Foot Tri-Toon: Prop???

Must be a leftover 04; 05 was etec production,no 115s.It seems to me that a tri with a 115 should do lots better. A 13 is a good size for most 115s.
At least 25 and 30 is possible.Of course log size and boat weight and build vary.Maybe you could raise the motor a little.Check that the throttle opens all the way.Maybe water in the logs? Is the prop in excellernt shape?
 
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Bip17

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Re: 05 Evinrude 115 - 24 Foot Tri-Toon: Prop???

Prop is in perfect condition. The tri-toon is 24' with no water in the logs. Just trying to find out if different props could boost the top end speed.
 
75TowerOfPower

75TowerOfPower

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Apr 17, 2009
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Re: 05 Evinrude 115 - 24 Foot Tri-Toon: Prop???

A 15 pitch will get you into the 26-27 mph and the 17 pitch might get you over 30mph on that toon.
 
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steelespike

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Re: 05 Evinrude 115 - 24 Foot Tri-Toon: Prop???

75TowerOfPower said:
A 15 pitch will get you into the 26-27 mph and the 17 pitch might get you over 30mph on that toon.
Click to expand...

If you go to a 15 you will lose about 400 rpm same additional if you go to the 17.
Motor won't be happy and I doubt it has the power to make the progression.
If you go to the etec site and check the 115 performance reports you will see most
are running a 13 and about 30 mph. there are a couple of exceptions perhaps you can compare those boats to yours.
 
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