Boats For Sale:
Ski Nautique 176 |
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Hollywood 
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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 Posted: October-03-2014 at 5:42pm |
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Bet you go faster with a 470.
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phatsat67
Grand Poobah 
Joined: March-13-2006 Location: Indiana Status: Offline Points: 6147 |
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Posted: October-03-2014 at 5:44pm |
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HW knows the secrets of the almighty 470
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MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3590 |
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Posted: October-04-2014 at 4:11am |
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I would think a good prop on a 454 might not be ideal for the 351 engine. The 454 has an extra 100 ft pounds of torque. That is a lot of helpful twist that the small engine could not muster.
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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Posted: October-04-2014 at 2:02pm |
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The prop doesn't know what engine is spinning it.
Big engine with a 1:1 could very well turn the same prop as a smaller engine with a 1.23:1 |
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21109 |
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Posted: October-04-2014 at 2:43pm |
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^^Yup^^
A stock 330hp 454 will actually struggle to pull a 470 (12.5x15). It'll perform much better with a 13x13 or 13x14 acme (430, 1598, 1458). On a 176 with a 1.23, I don't think ia 470 is going to be enough prop since he's already turning the 422 (12.5x15.5) 4600. That's the sweet spot on a 240hp 351w. |
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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Posted: October-04-2014 at 6:53pm |
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The 470 is a large prop. Look how it towers over a 654.
 So not only is there a large rake, there is also a lot of blade in front of the hub too. Being a 3 blade it is also more efficient. This is why I say it will be faster than a 422. |
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Frankenotter
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Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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Posted: October-28-2016 at 12:07am |
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Just did my first ever compression check on the 176 while putting her away for the season. I was sh!?ing bricks wondering about the outcome for an engine that has 1150 hours, but here are the results.
Cylinder: 1. 115 2. 125 3. 125 4. 120 5. 115 6. 120 7. 125 8. 120 That seems pretty healthy to me. |
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1999 Ski Nautique 196
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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Posted: October-28-2016 at 12:09am |
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Was the engine cold or warm
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Frankenotter
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Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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Posted: October-28-2016 at 12:18am |
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Relatively warm. I bucket ran it up to temp in the driveway, changed the oil, and then did the test.
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1999 Ski Nautique 196
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SNobsessed
Grand Poobah
Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Posted: October-28-2016 at 10:11am |
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Should run good on 87 octane!
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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