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SNobsessed 
Grand Poobah 
Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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 Topic: Prop suggestionsPosted: August-05-2009 at 12:56am |
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JD - I would say you have a keeper there! That's as fast as our SN.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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jd burton
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Joined: June-05-2009 Status: Offline Points: 10 |
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Posted: August-04-2009 at 10:04pm |
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OK I just got back from the river and here are the numbers,
2400 rpm-22 mph 2600 -25 2800 -27.5 3000 -30.5 3200 -32 3400 -34 3600 -35.5 3800 -38 4000 -40.5 WOT 4600 -45 For what its worth, indicated numbers,no gps stock 351w- acme 1608 |
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jd burton
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Joined: June-05-2009 Status: Offline Points: 10 |
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Posted: August-03-2009 at 8:42pm |
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As far as i know the tach and spedo are original, thats 25 years old, but still work. A gps would cost more than the boat.
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TRBenj
Grand Poobah
Joined: June-29-2005 Location: NWCT Status: Offline Points: 21192 |
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Posted: August-03-2009 at 8:33pm |
Usually the speed vs. RPM gap grows bigger with speed, especially as you get close to WOT. It will get even larger with an increased load (skier in tow) so if that first figure is correct, then I suspect you were only pulling that barefooter 39-40 at most. You also may want to GPS the boat- the speedos may or may not be accurate! |
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jd burton
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Joined: June-05-2009 Status: Offline Points: 10 |
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Posted: August-03-2009 at 8:00pm |
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I have a 84 southwind , and I replaced the original prop,13x13 with a acme 1608. We ski and tube with 4 adults and 4 kids and a black lab.
Lots of weight in the boat at times. The 1608 has made all the difference in the world. With a full load in the boat ,full fuel, and me in the water( 230lb) It will pop me out on a slalom with no hesetation. 3150 rpm at 30mph . better on fuel . Dont know WOT numbers. I did pull a bare footer at 4300 rpm at 42mph for what its worth. |
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eric lavine
Grand Poobah
Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: August-31-2008 at 11:25am |
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it should be 1 inch, same as Hollywoods
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"the things you own will start to own you"
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83Southwind
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Joined: September-10-2004 Location: United States Status: Offline Points: 22 |
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Posted: August-31-2008 at 11:15am |
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How is the diameter of the shaft measured? Can this be done by just using a tape measure?
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Wick
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boat dr
Grand Poobah
Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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Posted: August-28-2008 at 10:15pm |
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I would suggest a 13x13 Legend 3 blade...
O.J Propellers Louden Tn. 1-800-359-9730 Ask for Sue,When you receive your new prop put the old one in the same box and ship back to Johnson Propellers to be repaired.Tell Sue what you want to do and she may give you a TwoFor One price, new prop and repair plus shipping all for one price........Boat dr |
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83Southwind
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Joined: September-10-2004 Location: United States Status: Offline Points: 22 |
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Posted: August-28-2008 at 9:55pm |
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It has been in the water only twice in the last 5 years. The prop on it is a Federal 13x13 RH with a few dings.
I would like to purchase a new prop and send the current one to be refurbished. I am in central Kentucky. Suggestions on where to send the Federal for re-tooling? Thanks for the post back! |
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Wick
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-28-2008 at 8:47am |
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Wick, What prop are you running now and what's the WOT RPM?
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83Southwind
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Joined: September-10-2004 Location: United States Status: Offline Points: 22 |
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Posted: August-27-2008 at 9:14pm |
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Suggestions for the best prop for a 1983 Southwind 351? On plane the quickest and cruising speed.
Thanks, wick |
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Wick
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jd burton wrote: