Boats For Sale:
Ski Nautique 176 |
Post Reply 
|
Page <12 |
| Author | |
Hollywood 
Moderator Group 
Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13523 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: October-03-2014 at 5:42pm |
|
Bet you go faster with a 470.
|
|
 |
|
|
phatsat67
Grand Poobah 
Joined: March-13-2006 Location: Indiana Status: Offline Points: 6157 |
Post Options
Thanks(0)
Quote Reply
Posted: October-03-2014 at 5:44pm |
|
HW knows the secrets of the almighty 470
|
|
|
|
|
MrMcD
Grand Poobah
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3778 |
Post Options
Thanks(0)
Quote Reply
Posted: October-04-2014 at 4:11am |
|
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.
|
|
|
|
|
Hollywood
Moderator Group
Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13523 |
Post Options
Thanks(0)
Quote Reply
Posted: October-04-2014 at 2:02pm |
|
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 |
|
|
|
|
TRBenj
Grand Poobah
Joined: June-29-2005 Location: NWCT Status: Offline Points: 21207 |
Post Options
Thanks(0)
Quote Reply
Posted: October-04-2014 at 2:43pm |
|
^^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. |
|
|
|
|
Hollywood
Moderator Group
Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13523 |
Post Options
Thanks(0)
Quote Reply
Posted: October-04-2014 at 6:53pm |
|
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. |
|
|
|
|
Frankenotter
Platinum Member
Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
Quote Reply
Posted: October-28-2016 at 12:07am |
|
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. |
|
|
1999 Ski Nautique 196
|
|
|
|
|
Hollywood
Moderator Group
Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13523 |
Post Options
Thanks(1)
Quote Reply
Posted: October-28-2016 at 12:09am |
|
Was the engine cold or warm
|
|
|
|
|
Frankenotter
Platinum Member
Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
Quote Reply
Posted: October-28-2016 at 12:18am |
|
Relatively warm. I bucket ran it up to temp in the driveway, changed the oil, and then did the test.
|
|
|
1999 Ski Nautique 196
|
|
|
|
|
SNobsessed
Grand Poobah
Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
Post Options
Thanks(0)
Quote Reply
Posted: October-28-2016 at 10:11am |
|
Should run good on 87 octane!
|
|
|
“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
|
|
|
|
Post Reply
|
Page <12 |
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options