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View Full Version : Prop upgrade for 1979 S&S


eschind
07-18-2005, 02:43 PM
I am looking for an upgrade from the stock prop. I've read some threads that recommend 4-blade, others that recommend 3-blade. Does anyone have some suggestions / experience on performance props for a 1979 S&S? Thanks, Erik

BrianM
07-18-2005, 04:43 PM
I would highly reccomend a 3 blade CNC finished prop. Either the ACME or OJ XMP. Will make a night and day difference in performance and smoothness. Type Prop into the search function on this board and you will find lots of discussion and reviews.

eschind
07-18-2005, 11:10 PM
Thanks for the information. Is there a size you would recommend for my boat? I am unfamiliar with inboard props.

Leroy
07-18-2005, 11:25 PM
Also, you should call ACME props and OJ props and ask them. Both are very good with answers like this.

6ballsisall
07-18-2005, 11:39 PM
Eschind. I am selling my boat now and the Acme CNC 541 doesn't go with it. If the boat I replace it with doesnt take the 541 I will sell it if you are interested.

eschind
07-19-2005, 10:45 AM
Hi jrandol,
I am interested in the prop. Do you know the specifics of the prop and if it will work on a '79 S & S? Thanks for the response.

6ballsisall
07-19-2005, 10:50 AM
e,

if you have a 1:1 transmission it will work just fine. The Acme 541 is the 13" x 12.5" CNC prop that we had a (gulp) "group buy" on several months ago. The run very tight tolerances and are extremely queit props. It's night and day nicer than the stock prop or even my OJ legend 4 blade.

ssippiriverrat
07-19-2005, 11:01 AM
If you are into wakeboarding and usually drive around 20-24 I would go with a 4 fin--I recently changed over and it make a huge difference keeping the speed consistant. I think I runs smoother and easier at the slower speed--I am not really sure what it does to your top end speed but definately great for boarding.

eschind
07-19-2005, 01:41 PM
The transmission is the Velvet Drive, which I believe is 1:1. The boat is used primarily for slalom skiing - around 35 mph. Is there a way I can verify the dimensions of the prop for my boat? Also, how much would you sell it for? Thanks again, Erik

6ballsisall
07-19-2005, 01:45 PM
E, if you have the velvet drive we have the same setup. Its the size you want. Send me a PM and we can talk price. Again sale all depends on my new boat not taking this size prop, I really like this prop!!

Footin
07-19-2005, 01:45 PM
e,

if you have a 1:1 transmission it will work just fine. The Acme 541 is the 13" x 12.5" CNC prop that we had a (gulp) "group buy" on several months ago. The run very tight tolerances and are extremely queit props. It's night and day nicer than the stock prop or even my OJ legend 4 blade.

Isn't the 541 13X12? If so, I would be interested.

BrianM
07-19-2005, 01:46 PM
e,

if you have a 1:1 transmission it will work just fine. The Acme 541 is the 13" x 12.5" CNC prop

Actually the #541 is a 13 x 12. I am running the same thing on my boat and absolutely love the performance. I use my boat for skiing 34-36 mph 95% of the time and the prop is perfect for that.

If your boat is a 1:1 the stock prop was a 13x13. Going to a 13 x12 CNCd prop will get you a much better hole shot, better holding power at ski speeds, vibration free performance and no loss in top end.

Footin
07-19-2005, 02:00 PM
Overall, do you guys that changed to Acme, do you see more or less turbulance in the table of the wake?

6ballsisall
07-19-2005, 02:03 PM
Overall, do you guys that changed to Acme, do you see more or less turbulance in the table of the wake?


HUMONGOUS difference in turbelence. For footin it took my boat to a whole new level. Gotta love the white frothy water the old 86' leaves ya! :headbang:

BrianM
07-19-2005, 02:10 PM
Overall, do you guys that changed to Acme, do you see more or less turbulance in the table of the wake?

I foot behind mine with a 100' line. The wake has more froth but it is soft. It looks like there might be a bit more white water betwen the wake but it is softer and overall easier on the feet for wake crossings.

87MC Dave
07-19-2005, 03:40 PM
Where is the best place to order a new prop from. I think I want the #541 13x12, but where is the best place to order it from?

BrianM
07-19-2005, 04:16 PM
www.wakeside.com (http://www.wakeside.com) has the best price on the net for Acme

waterlogged882
07-19-2005, 05:04 PM
..........

87MC Dave
07-19-2005, 05:28 PM
Thanks for the info