What's the difference?

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Glastrontizz

Seaman Apprentice
Joined
Oct 20, 2009
Messages
48
I have a 1984 evinrude v4 140. It came with a two props. A 13 3/4 - 15 and a 14 - 17. What will be different putting the 14-17 on? Thanks
 
Bifflefan

Bifflefan

Commander
Joined
May 27, 2009
Messages
2,933
Re: What's the difference?

Glastrontizz said:
I have a 1984 evinrude v4 140. It came with a two props. A 13 3/4 - 15 and a 14 - 17. What will be different putting the 14-17 on? Thanks
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Going from a 15 to 17 will add a little speed and take away a little hole shot. This is all things being equal in a perfect world.
You will just have to try them to see which one suits you best.
 
K

ken52

Petty Officer 1st Class
Joined
Jul 27, 2008
Messages
307
Re: What's the difference?

I ran the 13.75 x 15 on a 87 Rude 140 and it worked great. It was on a 87 ProLine 21 WAC(heavy boat). WOT rpms were 5800-5900. Going to 17 will also decrease your WOT rpms too.
 
W

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: What's the difference?

You want to use the prop that puts you near 5800rpm with a normal load.
Of course there are "other" items we can change to optimize the use of either, that's another story..
By the way the 15P is the old style blade design if it's OEM/OMC and the 14X17 has a different design, not just because it's a different pitch-both good props, just use the one that puts you in the rpm range stated above.
 
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