PDA

View Full Version : prop shootout Xstar style


willyt
10-16-2013, 02:12 PM
so dropped the boat in a couple days ago and said something that got me thinking,

dunk and fill...

that's about all we ever do, we have to idle by a 1/4 mile long no wake zone but after that its all riding all the time. Its an 07 MCXer.

I currently have a 14.25x14.5 OJ on the boat, and I'm thinking about comparing a 14.75x13 OJ and 15x12 acme for my next prop. Fuel burn and plane time will be the two most important factors.

anyone tried this before?

bhanson
10-16-2013, 03:09 PM
Not exact comparison, but I replaced my Acme 537 (13.5x16) with the Acme 2079 (14.5x12) on my 2001 X30. I love it. Would even say that it completely transformed my boat's performance and enjoyment, but don't want to be overly dramatic. Considered the 15x12 but was going to be a bit tight, and figured 14.5x12 was already a huge change for me.

Your two questions: Fuel burn- i burn less gas now (my 537 cavitated slightly when surfing, increasing fuel burn), Plane time- not even a fair fight in my case, 12er hole shot is ridiculous and planes very, very quickly.

We surf most of the time so fully loaded with 3000# plus crew. The 537 would cavitate badly with that much load, so I could only run about 2000#. The 2079 pushes 3000# effortlessly. In addition, oddly, my RPMs at 11 mph went DOWN compared to the 537. That tells me the 537 was cavitating some even with the 2000#, just not bad enough to notice (yikes !).

Wakeboard with way less load, so 537 was fine, but 2079 hole shot and plane time is way better. Certainly no downsides using 2079 for boarding.

WOT went from roughly 38mph/4800 rpm to 35mph/5000 rpm, but we never run it like that. Even when cruising we stick around 25-30 mph.

For me, it was "finesse" versus "raw power". Used to be "hit it" to yank the boat out of the water and wait (hope) for it to plan, now we just ease into it even with full load. World's Strongest Man, when the huge guys pull a tractor trailer: that is how I feel about my X30 now with the 2079.

501s
10-16-2013, 03:19 PM
On My X-30 I went form the 14.25x14.5 to the 15x12. We mostly wakeboarding with 3k. Time to plane was almost cut in half, RPM's went down by 200 and so did the fuel useage. Win win to me. I felt the prop made a bigger difference than going from the 5.7 to the 6.0.

Top speed is around 36 now. But that's not at all important to us either.

snork
10-17-2013, 06:46 PM
I'm considering a Acme prop but I don't want to loose my top end speed I need 40mph to barefoot but I wakeboard with an additional #2500lbs and probably increase to #3000lbs sometime in the future
07 XStar w/MCX

CumberlandXstar
10-18-2013, 09:21 AM
I wrote down what rpm the boat was at for each mph on a few props. I will try and find it and post it up to give you some reference. Let me know if you want to borrow my new prop to see how you like it.

Mastercraft13
10-18-2013, 09:48 AM
so dropped the boat in a couple days ago and said something that got me thinking,

dunk and fill...

that's about all we ever do, we have to idle by a 1/4 mile long no wake zone but after that its all riding all the time. Its an 07 MCXer.

I currently have a 14.25x14.5 OJ on the boat, and I'm thinking about comparing a 14.75x13 OJ and 15x12 acme for my next prop. Fuel burn and plane time will be the two most important factors.

anyone tried this before?

Easiest answer, just get a new star! You still riding? Mine is at BHM so if you need a 3rd let me know, I have the dry suit out.

willyt
10-18-2013, 09:58 AM
forecast isnt looking promising for riding the rest of the year, after monday's 67 there will be 3 nights in a row its forecasted to get below freezing. think i might have to hang it up this sunday

wilhelmwake
10-18-2013, 04:21 PM
I put an ACME 14,5 x 14.25 on my 2005 MCX xStar and that prop was fabulous!!! Definately can recommend it...

Jerseydave
10-20-2013, 08:11 PM
I'm considering a Acme prop but I don't want to loose my top end speed I need 40mph to barefoot but I wakeboard with an additional #2500lbs and probably increase to #3000lbs sometime in the future
07 XStar w/MCX

For more top end speed without losing much holeshot try an OJ 14.75 X 15.5. Top speed for me with that prop was 41-42.
If you run 1400# rear ballast and 1250# front (total) the wake is sweet.
No need to use the rear hard tanks at all......I don't. They're too far forward anyway.

willyt
10-24-2013, 09:47 AM
http://www.wakeworld.com/forum/showthread.php?t=800125

some good information about the 15x12 in that thread actually

501s
10-24-2013, 11:07 AM
The 15x12 is an awesome prop, I have yet to meet anyone with one who isn't happy. You loose a little speed off the top end, but that's the only negative I have found. It's fun to keep loading the boat up and not having to worry about there being too much weight. We had over 4k in my X-30 this summer with 8+ people (and the X-30 weighs 4700lbs dry) so it was over 10k total weight and we got on plane no problem. Wake was bananas with that much weight too.

Jerseydave
01-19-2014, 09:52 AM
http://www.wakeworld.com/forum/showthread.php?t=800125

some good information about the 15x12 in that thread actually

willyt, did you end up buying the ACME 15X12? I'd be curious to see how you like it once you're back on the water. I have some cavitation on right turns when fully loaded, plus I'm all for a better holeshot if possible too. :)

CottagerGreg
01-20-2014, 10:48 AM
I have the Acme 2271 15" x 15.75 4blade prop with a 105 cup.

Performance, RPM's and GPH are better than the previous 14.5 x14.75 OJ prop

I could get on plane with 700's in back locker, 400 in walkway and 400 on top of bow seats. Factory front ballast filled and 7 people in the boat.

Once ECU adapted it got up no problem.

Comparison to the OEM OJ prop
http://i89.photobucket.com/albums/k212/GTI2lo/2008%20Mastercraft%2040th%20Anniversary%20X-star/utf-8BNTYwMjAxXzEwMTUwOTQyMDkzNDY4NzM1XzUxNDIwMzczNF8y MzYyMTU3MDNfNTIyMDgyODkwX24uanBn.jpg (http://s89.photobucket.com/user/GTI2lo/media/2008%20Mastercraft%2040th%20Anniversary%20X-star/utf-8BNTYwMjAxXzEwMTUwOTQyMDkzNDY4NzM1XzUxNDIwMzczNF8y MzYyMTU3MDNfNTIyMDgyODkwX24uanBn.jpg.html)

willyt
01-20-2014, 06:03 PM
you have the LY6?

Aric'sX15
01-20-2014, 06:41 PM
What is up with the black/grey prop?

Tristarboarder
01-20-2014, 10:19 PM
Kinda still on topic with this thread....any recommendations for a prop for an older Xstar? 2002 with the LTR? I am not cool enough to own a newer one, but want to try at least :D
Thanks

CottagerGreg
01-20-2014, 10:45 PM
What is up with the black/grey prop?

That was the 14.5 x14.75 OJ prop was used for a couple seasons. Must be out water ph balance

Aric'sX15
01-20-2014, 11:27 PM
Kinda still on topic with this thread....any recommendations for a prop for an older Xstar? 2002 with the LTR? I am not cool enough to own a newer one, but want to try at least :D
Thanks

Budman has a 13.5x16 or something like that and its not bad with like 2800lbs of ballast.

Tristarboarder
01-21-2014, 12:03 AM
I have read a lot of research over the last few months about the Acme 1285 being a good prop choice for my year/model boat. Just curious if anyone else has used this prop for a Star/X2/X1.....205v hull, or another prop recommendation

Aric'sX15
01-21-2014, 12:12 AM
Oj 522 also seems to be a popular choice for the 205V

wallnut21
01-21-2014, 09:32 AM
I used the Acme 1285 on my '06 X2 with great success. Sometimes we ran stock + 1400 with six to eight people with no problems. Also ran the OJ 14.25x14 as a spare with similar results. I'm planning on using the 1285 on my x30 on order.

willyt
05-05-2014, 12:46 PM
follow up to this thread from last year, i spoke to acme last week and they recommended either the 2307 (15x12, .105 cup) or the 2197 (14.5x12, .150 cup). I expressed concerns about the RPMs at speed, and based on that they steered me in the direction of the 2307.

I have a friend that just bought a 1516-122m (basically a 14.5x12.75 .105 cup) and the results of his test are promising, i dont think i could go wrong either way.

Planning on ordering it soon

FoggyNogginz
05-05-2014, 01:43 PM
Increased diameter and less pitch do seem to be the trends among surfers/boarders. Please let us know what you find. I am ordering today as well. Good luck!

DBrown2
09-15-2014, 02:01 PM
Bump WillyT what did you do? I am looking at upgrading now that I have added more Ballast to the Port for surfing, and with more than 4 people in the boat its grunting and now much of a hole shoot anymore.
I don't barefoot nor have I ever ran my boat at 40+ MPH, I typically run 28-30 MPH if just running the river to go eat.
Keeping fuel economy in mind. Whats the outcome?