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Old 05-14-2006, 10:01 PM
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Default prop for a 200 Yamaha hpdi

What prop would you recommend for this motor. I have a Grady White 228 Seafarer and the current prop will get me 5100rpm wot and about 35-39 miles per hour depending on the wind and current. The prop I have is a 13.75 / 17. I cruise at 4400 rpms and get 30mph. Could I do better

Thanks, Lenny
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Old 05-18-2006, 05:42 AM
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Default Re: prop for a 200 Yamaha hpdi

15.25" x 17 should be much better
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Old 05-18-2006, 07:23 AM
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Default RE: prop for a 200 Yamaha hpdi

thats a heavy boat for a 200, your cruise speed could be better with a 4 blade, you didnt say what exact prop is on your boat, that makes a big difference, ex. stainless or aluminium, 3 or 4 blade, who makes your prop? your max rpm on that engine is 5500, you should want to lower the cruise rpm to 4000 and still be doing close to 30, I might try a rev4 prop, start with a 15 pitch with a large diameter, I think Andy from SIM on this board does an exchange if you need more or less pitch
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Old 05-18-2006, 08:21 AM
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Default Re: prop for a 200 Yamaha hpdi


Maybe try the Yamaha Saltwater Series 15.25" X 15?
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Old 07-18-2006, 03:29 PM
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Default RE: prop for a 200 Yamaha hpdi

I have the exact same problem on my 21 Sailfish - 5100rpms and 38kts. My Yammy mechanic is telling me I should get 5500 rpm and 40kts...so I will try some props.

Question is: Who recomends the prop from the factory - the dealer or Sailfish (manufacturer)? Seems to me that if the boat manufacturer puts a specific prop on it is for a good reason and tested for economy etc, but if the dealer props it do they really know what's the best setup?
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Old 07-18-2006, 10:41 PM
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Default Re: prop for a 200 Yamaha hpdi

Quote:
Capt. Squiddly - 5/18/2006 5:42 AM

15.25" x 17 should be much better
I have 2 for sale... Call me at 781-801-2500
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Old 07-18-2006, 10:43 PM
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Default Re: prop for a 200 Yamaha hpdi

My problem is the 17" gives me 6100 rpms and the 19" gives me 5300 rpms... I want 5700 so I am going to a 17" 4 blade when I sell the 2 17" props I have.
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