stainless versus aluminum prop

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rbiederwolf
Posts: 383
Joined: Sun Apr 03, 2011 5:25 pm
Location: Jupiter, FL

stainless versus aluminum prop

#1 Post by rbiederwolf » Sun Jan 13, 2013 6:36 am

Which spins faster/higher rpm's at WOT assuming the identical diameter and pitch?

Currently have an aluminum 15.25x 15P aluminum at WOT 5700rpm?

Was wondering what the same prop in stainless would do?? Is it worth the extra $500
If you ain't got the the blues, you got a hole in your soul...

Rick
2007 Avalon Paradise Elite 22 Tritoon
2008 Yamaha 150hp

Bamaman
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Location: NW Alabama--Tennessee River

Re: stainless versus aluminum prop

#2 Post by Bamaman » Sun Jan 13, 2013 6:58 am

The best prop for your boat would probably be the Yamaha Reliance 15 pitch. That's what my Bennington/Yammie 150 is running. They originally put a 14 pitch prop on the boat, but I was up against the rev limiter and the boat was 3-4 mph less.

Any toon with a 150 hp needs the stainless prop. I've just found them to be more durable on my inboard outboard boat--after crunching an aluminum prop yearly. They just last so much longer.
'12 Bennington 24' SSLX Yamaha 150

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cwag911
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Re: stainless versus aluminum prop

#3 Post by cwag911 » Sun Jan 13, 2013 10:15 am

Or a 15 x 15p Enertia.
Carl & Suzi
07 Bennington 2275rl triton w/ strakes
150 Honda 15x15p Enertia prop
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Denver, NC Lake Norman
Pleiku, Vietnam 1971
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rbiederwolf
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Location: Jupiter, FL

Re: stainless versus aluminum prop

#4 Post by rbiederwolf » Mon Jan 14, 2013 12:31 pm

What difference performancewise does the SS make versus the aluminum?

Have you tried the same prop but in an aluminum model?? Anyone got real numbers??
If you ain't got the the blues, you got a hole in your soul...

Rick
2007 Avalon Paradise Elite 22 Tritoon
2008 Yamaha 150hp

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Shopguy
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Location: Lake Tenkiller, OK

Re: stainless versus aluminum prop

#5 Post by Shopguy » Thu Jan 17, 2013 10:07 am

In a timed event it's minimal at best. Hardly worth the extra bucks unless you have it to throw at a prop. If you run wide open for long distances or for most of the time it'd make some difference. Probly not noticeable without a GPS. I'm not wide open for very long nor do I have 500 bucks for a $130 prop that basically does the same job. I've been on the same prop for four years now and I'm pretty protective of it. It's got a couple nicks in it but I don't feel anything or see a diff in RPM, so I'm good.
This is the case of an identical prop, but diff metal. Most Stainless props tend to perform (let's say better) because they have different pitch and rake angles built into them that are performance oriented. So, yeah, if you go from aluminum to stainless you'll often see a different outcome to an extent. Sometimes, a change in pitch or a 1/4" in diam is necessary to maintain max RPM. They difference will most likely be in the slip % numbers.
Granted my 150 will handle the stainless but rarely would I use it to it's full potential. It's like buying a Barret 50 cal to go deer huntin. You can do it, but it just don't make sense to me. :2cents
Shopguy

23' Tritoon with a 150F Yamaha
Strakes and skins

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