New OJ Prop - 14.25x14.5

[cab13367]

I am in the market for a wakeboard prop. I have the stock 13.7x17.5 prop. Had 1300+ lbs of ballast and 7 adults in the boat last weekend and it took forever to plane out pulling a wakeboarder. I understand that OJ has come out with a new wakeboard prop - a 14.25"x14.5 pitch - that supposedly tested better (quicker to plane when heavily weighted) than the old 14.25x14 and the Acme equivalent. Does anyone have this new prop?

I have no doubt that this will take care of my planing issues but what should I expect as far as a top speed loss and additional fuel use when lightly loaded? I run a lot with no ballast (pulling the kids on the tube and when the wife or son or friends wakeboard) so i'm concerned that the 14.25x14.5 is not the best all around prop for me. Top speed loss is not really a concern unless it's significant (more than 5 mph).

Another option, recommended by my dealer, is the 13.7x15.75 prop but I don't know if it's enough of a difference over the stock when weighted down.

Thoughts and comments?

[you da man]

The Acme 1235 (14.5x14.25) prop is getting great reviews compared to the OJ. Nettles Props has the Acme in stock for $506 and that's the best price I've seen.

[yearround]

i don't konw about hte new prop, i have the old 14.25x14.0 oj prop. we have an 08 lsv. top speed empty is about 37-38 mph fantastic hole shot loaded with stock G3 ballast and 6-7 adults.

just general pulling we get about 5 gph cruising at lake powell going from BF to rainbow we get about 6-7 gph, i think because it is higher rpm for a couple hours, used 34 gallons last week each direction in one day

[moombadaze]

I also have the 14.25x14, its great when loaded heavily, it pulls onto plane with no effort. Only thing I wish was a little more upper end cruising speed and less growling/vibration sounds at lower speeds. I actually have never run it wide open to check for top end speed but think it would overrev.

[Razzman]

Daze, I also have the 14.25x14 and have plenty of topend. Mine tops out at 46mph according to both speedos. My buddy's boat has PP stargazer and corrected mine runs 45mph. It's definitely not over revving in fact the ecm won't let it.

[you da man]

I also have the 14.25x14, its great when loaded heavily, it pulls onto plane with no effort. Only thing I wish was a little more upper end cruising speed and less growling/vibration sounds at lower speeds. I actually have never run it wide open to check for top end speed but think it would overrev.

There are those Moomba owners who have had both the OJ and Acme said that the OJ has the vibration and the Acme did not

[sandm]

I have heard the same thing about the acme vs oj.
I'm going to go to a new prop this winter as I have the 13x17 also.
I plan on buying the acme..

top end is not a concern for me either. currently, my pp shows me at 39 topped out, but I don't think it's correct.
also planning on the stargazer upgrade so we'll see what that says when installed..

[_sT_]

Just another note on top end - I've had mine up to about 42MPH (No GPS confirmation). I'm not at WOT yet for my engine, but at the speed even in calm water I start to porpoise so bad I can't go any faster for fear of losing control. I have no wake plate, trim tabs, or any other kind of trim adjustment on my unit.

EDIT: If I could trim out properly I bet I could hit over 50MPH in calm water. On my old IO, there was a 10MPH swing between trimmed correctly and trimmed all the way in - it makes a huge difference.

[yearround]

razz, why would i be so much slower than you? i think our boats are the same, you are 07 LSV w/ 325 right? i am 08 lsv with 325. would it be that i am at higher elevation? (5600) but even at powell, the lowest i have been is 3600. what other things might be causing me to have a lower top end?

[cab13367]

The Acme 1235 (14.5x14.25) prop is getting great reviews compared to the OJ. Nettles Props has the Acme in stock for $506 and that's the best price I've seen.

Could you please point me to these reviews. Thanks.

I also have the 14.25x14, its great when loaded heavily, it pulls onto plane with no effort. Only thing I wish was a little more upper end cruising speed and less growling/vibration sounds at lower speeds. I actually have never run it wide open to check for top end speed but think it would overrev.

The growling/vibration concerns me. Was it doing that with the stock prop? Is the prop out of balance or the shaft possibly slightly bent?

Daze, I also have the 14.25x14 and have plenty of topend. Mine tops out at 46mph according to both speedos. My buddy's boat has PP stargazer and corrected mine runs 45mph. It's definitely not over revving in fact the ecm won't let it.

Wow, Razz, that seems fast. What rpm is that? Did you confirm that with a GPS? Not saying I don't believe you, that just seems awful fast, especially with the 14.25x14.

There are those Moomba owners who have had both the OJ and Acme said that the OJ has the vibration and the Acme did not

Which Moomba owners?

I've heard about the vibration issue of the OJ but have not read anything about it.

Does anyone know of any controlled test done on the Acme and the OJ back to back on the same boat? Or are all these subjective, seat of the pants comments?

If someone can point me to a test comparing the two props, I would appreciate it.

Thanks,

Al