176 ideal prop? |
Post Reply | Page 12> |
Author | |
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
Posted: September-23-2014 at 12:06pm |
With the season coming to a close, I'm turning attention to the winter projects. I want to upgrade my prop (and possibly an ARE shaft) and want to get some opinions while I still have the boat in the water.
Zack, Chris, and Joel (I think?).......you guys came and stole the prop off the 176 at Green Lake last year. One of you gave me a recommendation for an upgrade and I can't remember what it was. Here is what's on the boat currently Are these numbers just from prop repair shops or do they mean something? With this prop I'm getting 41mph at 4200rpm (GPS) with a completely empty boat. Stock 351 @ 240hp. I use it exclusively for slalom and barefoot. 3 blade? 4 blade? Looking for a good ACME recommendation. Cheers! Chris |
|
1999 Ski Nautique 196
|
|
hotboat
Gold Member Joined: March-28-2009 Location: Conn Lake Pa Status: Offline Points: 814 |
Post Options
Thanks(0)
|
Take the nut off the shaft, that's where the dai/pitch are marked
|
|
Brian
|
|
storm34
Grand Poobah Joined: November-03-2008 Location: Dexter Iowa Status: Offline Points: 4492 |
Post Options
Thanks(0)
|
Edit - that's why I shouldn't talk props... Tim would be the man to ask.
|
|
TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21131 |
Post Options
Thanks(0)
|
Noooooooo, definitely not a 540. All 176's had 1.23's.
Pretty sure we verified you have a 13x17 on there. You'd benefit quite a bit by getting the revs up to 4600. I bet an acme 422 would get you pretty close. |
|
phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
Post Options
Thanks(0)
|
Chris, I put a 668 on a 240 horse 17'6" this last fall and it turned it 4600-4700 rpms, I was impressed. A 422 would be just fine as well. 668 is a 422 with a little more cup commonly used on the 6.0 196 boats.
The owner uses it on a private slalom lake and loves the prop. Either of the two would be a good pick for your rig but I do have some discounted old stock 668s if you are interested. |
|
quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
Post Options
Thanks(0)
|
Chris, I have a spare 422 somewhere and I also have a 422 on the 206, either of which you are welcome to try out. Weather looks great this week if you want to drop by and give it a try. We could pull the BU off the other lift and put the 176 on it to make the swap.
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
Whoops.
|
|
1999 Ski Nautique 196
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
CQ, we can definitely make that happen. What time do you get back from work on the weekdays? Thursday might work. I have a wedding on Friday.
Zach, I might take you up on the 668. If nothing else just to have as a spare. Looks like the answer is 4 blades across the board? |
|
1999 Ski Nautique 196
|
|
TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21131 |
Post Options
Thanks(0)
|
Could have sworn you had a 13x17 around at GL... Maybe a spare? If you're only pulling the 14x16 4200 then I'd go 422 or even slightly smaller... 1442 or 470. I'm not sure how that freak 176 Zach had was pulling a 668 4600+ with only 240hp, that's really really strong. I do have a used/reworked 668 I'd sell cheap if you want to go that direction though.
The name of the game is matching size (mostly pitch, followed by cup, then diam) to proper wot rpm. Blade count is a secondary concern, both 3's and 4's are very good. Acme doesn't make any 3-blades in the 15.5-16" pitch range, so that will dictate your choices somewhat. If going with a a 15" prop, the best ones are 3-blades. |
|
quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
Post Options
Thanks(0)
|
Thursday is fine, I am typically home by 5:30, you can come by anytime though, just let me know so I can leave the launch key or whatever.
Timmy will chime in I'm sure but there is a 3 blade option, don't recall the model, supposedly will give maybe +1mph over the 422 and some say change the wake/table slightly |
|
skutsch
Grand Poobah Joined: June-19-2008 Location: Racine, WI Status: Offline Points: 2874 |
Post Options
Thanks(0)
|
And collecting oil and toxic waste out of the Milwaukee River... |
|
skutsch
Grand Poobah Joined: June-19-2008 Location: Racine, WI Status: Offline Points: 2874 |
Post Options
Thanks(0)
|
CQ, I am pretty sure you are thinking of the 1442 - that is what I noticed when I switched from the 422, plus 1 mph. I was also pretty surprised at the change in rooster tail, seem to get a lot smaller, but at the cost of a lot more turbulent bubbles back in where you foot. I think I would stick with the 422 for footing, even though it is a little slower, and go with the 1442 for slalom, especially shortline. Of course why would anyone try to ski the course shortline behind my barge... |
|
TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21131 |
Post Options
Thanks(0)
|
Wake should not change based on blade count, I'm not sure I buy a table/turbulence difference either. The latter can be impacted (along with rooster firmness) by props that run different rpm at a given speed (higher rpm = firmer/harsher), but blade count shouldn't factor in much. Props of different style (Oj vs acme, for instance) may cause changes to boat attitude depending on how much stern lift they generate (which in turn plants the nose, distributing the boats weight over a larger surface and makin the wake slightly smaller- at the expense of top end speed), but all of the acmes we are discussing are similar in design and shouldn't change the boats attitude in a measurable way.
Like I said above, there is no 3-blade equivalent to the 422 or 668, only ones that have (incrementally) less pitch. I would not choose a prop based on blade count unless all else were equal- in which case I generally prefer 3-blades on our lighter direct drives. Matching pitch to wot is a more important consideration though, IMHO. |
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
Tim I think the prop you remember from GL was my spare 4 blade OJ 12 17.
I've never used it. Lets make it happen Quinner. Ill plan on heading down by you in the afternoon and maybe we can get a few runs in? Steve, are we still on for Thursday? EDIT |
|
1999 Ski Nautique 196
|
|
TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21131 |
Post Options
Thanks(0)
|
Chris, what's on the boat now- a 3-blade or 4-blade? Confirm the dimensions on your spare- if be amazed if it only has 14" of pitch. $5 says it had 17", can't recall if it's 12" or 13" diam... But that would have been the original prop on a 176, not the 14x16- at least based on what I've been able to gather.
|
|
phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
Post Options
Thanks(0)
|
Like I said I was very impressed with that 17'6". By feel I guess it was moving along at 45+.
I vote give CQ a visit and run a 422 for testing purposes. Who knows if the prop on your boat is healthy or not. Have to checked total timing advance? The 17'6" with the 668 was fresh off of a carburetor tune and a timing setting. I think I dialed it in around 32-34 degrees which is my typical all in I go with on a stocker. It wasn't running to well and required a long warm up before it could operate so I checked it all and set it to my preference IE timing/idle screws/new choke spring installed. I agree with Tim's memory in that you had a 13x17 at GL which I think I confirmed with CC was the factory offering on a 17'6" but my memory could be getting foggy. |
|
skutsch
Grand Poobah Joined: June-19-2008 Location: Racine, WI Status: Offline Points: 2874 |
Post Options
Thanks(0)
|
Sounds like you got a plan, my need was to just waste some time, you go take care of your stuff! I'd ride along with you, but the boss will have my head if she comes back from work and I am out playing with boats, and trust me, it won't take much to take the head off with the headstart I have given it... |
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
Sorry, that was a typo. The prop I posted pictures of here is what I've always had on the boat. The spare at GL was an OJ 12x17 4 blade. |
|
1999 Ski Nautique 196
|
|
IAughtNaut
Grand Poobah Joined: August-22-2010 Location: TN Status: Offline Points: 2568 |
Post Options
Thanks(0)
|
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
I haven't check the timing since I bought it. It has been running really smooth since rebuilding the carb last year, but I think its time for a timing check. The hole shot has been noticeably slower this year. |
|
1999 Ski Nautique 196
|
|
phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
Post Options
Thanks(0)
|
Gotta make sure she's making full power. I was just up on lake Nagawika this weekend. I should have given you a heads up.
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
You were here and you didn't call?
Can somebody tell Zach I'm not speaking to him |
|
1999 Ski Nautique 196
|
|
phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
Post Options
Thanks(0)
|
I had to do official wedding things all Thursday and Friday.
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
................................
|
|
1999 Ski Nautique 196
|
|
Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
Post Options
Thanks(0)
|
|
|
quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
Post Options
Thanks(0)
|
Me Either!!
|
|
phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
Post Options
Thanks(0)
|
|
|
Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
|
If it makes you guy's feel any better,I was in Indy on the 6th maybe he came up to get even with me---
|
|
skierox
Senior Member Joined: November-07-2006 Location: United States Status: Offline Points: 291 |
Post Options
Thanks(0)
|
I have a 1996 Ski 176. I switched from a three blade to a four blade this summer. This is my first season with the boat. It seemed to me that top end is around 45.I can look at what prop is on the boat.
|
|
Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
Post Options
Thanks(0)
|
Please do.
Also, if you get a chance, can you confirm top speed with a GPS? |
|
1999 Ski Nautique 196
|
|
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 |