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176 ideal prop?

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Grand Poobah
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Post Options Post Options   Thanks (0) Thanks(0)   Quote quinner Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 1:23pm
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 1:12pm
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Frankenotter Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 1:03pm
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?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Frankenotter Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:47pm
Whoops.

1999 Ski Nautique 196
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Post Options Post Options   Thanks (0) Thanks(0)   Quote quinner Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:40pm
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote phatsat67 Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:28pm
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:24pm
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote storm34 Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:19pm
Edit - that's why I shouldn't talk props... Tim would be the man to ask.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hotboat Quote  Post ReplyReply Direct Link To This Post Posted: September-23-2014 at 12:07pm
Take the nut off the shaft, that's where the dai/pitch are marked
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Frankenotter Quote  Post ReplyReply Direct Link To This Post 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
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