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gent13
04-19-2017, 11:18 AM
Need some prop advice from the experts out there. Have a 2010 x2 with the stock OJ 522 14.75 x 15.5. run around 2000 lbs ballast and most boating is done at 2000 ft above sea level.

When running full ballast and bags with a wakeshaper device I notice I max out around 9.5-10 mph with the PP set at around 10.6. (Not sure on rpm's) Buddies with the same boat and setups push through to PP speed and beyond with no issue.

They are running the ACME 1285 vs my stock OJ. Elevation, weight, power? all of the above an issue?

Wakemakers has the OJ 815 and OJ 845 as well as the Acme 1285 and Acme 2195 for the X2 appropriate year, thinking about one of those but not sure which.

Thoughts?

willyt
04-19-2017, 11:34 AM
Something sounds wrong, your boat should not have any problems with that amount of weight and that prop.

If everything checks out mechanically, I would say your next best bet is an Oj 848, 15x14

BrooksfamX2
04-19-2017, 01:04 PM
Need some prop advice from the experts out there. Have a 2010 x2 with the stock OJ 522 14.75 x 15.5. run around 2000 lbs ballast and most boating is done at 2000 ft above sea level...............

This is what I run at about 1500' ele. with no issues. There may be another factor causing issues other than the prop.

Is it spinning on the shaft?

gent13
04-19-2017, 01:12 PM
Nope, seems fine. Mechanical was in the back of my mind but the boat runs great otherwise. No issues wakeboarding or skiing, cruises at 40 no problem.

Prior to using the "suckgate" I would load the ballast and flip the boat to using tabs "Gen 1" and no real problem that I noticed. Really just became noticeable when fully loading and using the gate system. Shouldn't be much of a difference I would think which is why I thought maybe prop efficiency relative to weight and elevation.

osmonet
04-19-2017, 01:50 PM
There is another thread comparing these props in detail on a X2. I'll try to post it tonight if you have t found it by then.

Just my $0.02, I'm not happy with the 1285 on my X2. Pulls too many RPMs for my liking


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moosehead
04-19-2017, 01:53 PM
Maybe first try a bit of ballast in the nose to help her on plane? Same for slightly higher surf speed at say 10.8 or 11.0 MPH?

JP-OH
04-19-2017, 02:16 PM
Maybe first try a bit of ballast in the nose to help her on plane? Same for slightly higher surf speed at say 10.8 or 11.0 MPH?

This.

gent13
04-19-2017, 02:36 PM
tried moving bodies up front and/or filling a 400lb bag on the floor up front in the pass through. Didn't seem to change things much. Friends 09 x2, exact same boat with the same setup seems fine. Both perform the same with the exception of surfing, only difference is the prop. Acme 1285 vs OJ 522

CantRepeat
04-19-2017, 02:58 PM
If you want advise from a prop expert then you should call Eric @ OJ Props.


Johnson Propeller Co., Inc
750 Natalie Blvd
Loudon, TN 37774
Phone: 865-458-5205
Fax: 865-458-0686
Toll-Free: 800-359-9730

wallnut21
04-19-2017, 03:21 PM
I had the Acme 1285 on my '06 X2 MCX and never had any problems. Great prop for that boat.

gent13
04-20-2017, 11:13 AM
Good call, shot the starting thread off to Eric and got a reply right away. Will update on final call on prop purchased. Appreciate the advice folks

willyt
04-20-2017, 12:24 PM
I still think something is wrong... you should be able to put 2 1100's in the rear lockers (not that you'd want to do that) and still get on plane, or at very least up to surf speed with that 522.

MC25
04-20-2017, 12:25 PM
I still think something is wrong... you should be able to put 2 1100's in the rear lockers (not that you'd want to do that) and still get on plane, or at very least up to surf speed with that 522.

id say check PP settings

gent13
04-20-2017, 12:36 PM
yes tried playing with the PP a bit near the end of last year. Many settings in the 2010 BIG software but still didn't seem to matter. I did upgrade the BIG software version at the end of the year so it's possible there's a fix in there related to PP that I haven't seen the benefit of.

If it's mechanical I still thought I would have seen an impact while wakeboarding, skiing, or eve cruising and nothing, just seems specific to surfing (max ballast and bags)

Keep the feedback coming if I'm missing something obvious

jesam
08-14-2017, 10:52 AM
Gent, I have the exact same issue as you. It is definitely prop related. Did you go with another prop? I'm leaning towards the Acme 2195.

SS LS1
08-14-2017, 12:18 PM
Gent, I have the exact same issue as you. It is definitely prop related. Did you go with another prop? I'm leaning towards the Acme 2195.

The ACME 1285 (14.5 x 14.25) is loved and still recommended for the X2, X10, X15's etc with extra ballast for increased holeshot power. After calling ACME I just ordered their new 3155 (15 x13) which has not been talked about much here yet. They recommend it for less slip when trying to push a heavily ballasted boat with its larger diameter and nearly the same center blade pitch as the proven 1285.

Hope to have it this week to try it out and see how well it works. :popcorn:

Thrall
08-14-2017, 12:35 PM
On my 06, the stock prop for that year 14.7x17 wouldn't push wet sh_t down a slip n slide at high altitude, but would do ok at low alt, did not surf then or load the boat down heavy.
Used an Acme 1285 for altitude and night and day difference at alt and surfing.
I have approx 2000lbs total ballast and passengers and it jumps up to surf speed or even on plane with the extra weight.
That may be lighter than your running, but it doesn't feel nowhere near out of power.

jesam
08-14-2017, 01:59 PM
I'm running a total of 1400 in the rear and 900 in the front for a total ballast of 2300 lbs. The crew size can get up 1300 additional pounds. When the boat was loaded with flesh last weekend is when it wouldn't plane. Removed some ballast and all was good. I'm on a small lake and never exceed wakeboard speeds. Makes sense to bet a stronger prop.

gent13
08-17-2017, 05:38 PM
It did make a huge difference, got the boat on plane loaded up substantially quicker with the 848. Ended up trading the boat in mid summer on a 16 x30 6.0l which came with the stock 812 prop. Nothing really wrong with it but am going to try and swap to the 848 prop to see if it improves the low end. Chatted with Eric at OJ and he said it would.

Footin
08-17-2017, 07:39 PM
I have an 07 X2 with 1,500 total in the rear and 700 in the front and it has the 310 RTP. I use to run a 14.25X14.5 but now run a 14.75X15.5 (522). Both props are fine, I only changed because I do spend a lot of time cruising and or pulling a tube. Neither of them had a problem getting to surf speed but neither of them liked getting to cruising speed with only the rears filled, but it would still get there.

SS LS1
09-11-2017, 02:47 PM
Just thought I would follow up on this thread to help others out with their X2 prop decision.

2013 X2 5.7L Ilmor with Gen 2 + 250 lbs extra ballast placed from the tower base towards the rear of the boat.

Stock prop was an OJ 522 (14.75 x 15.5) that worked Ok for surfing and wake boarding with the tripple tab auto launch on but struggled some with 6+ adults getting up to speed and maintaining cruise set speed when fully ballasted.

New ACME 3155 prop (15 x 13 .105 cup) has a lot more blade surface area than my stock OJ prop as you can see in the photo. (stock OJ left new ACME right)

First impressions is the 3155 is awesome! You have to adjust your throttle control as the hole shot is way more aggressive than before. Boat doesn't seem to slip and then accelerate like it did ballasted with the stock OJ prop but rather it just grabs and goes! Engine seems to hardly be working now getting going for surfing, speed holding is better and the surf wake is cleaner especially on the starboard side.

So far no noticeable top speed loss and the engine runs 200-250 RPMs less while surfing. Already notice a decrease in fuel consumption when surfing with the 3155 and the part throttle acceleration jump is very much improved.

Prop change was an easy 10-15 minute swap standing in the lake with the boat on the lift. Prop pulled right off with no puller required. Only tools needed was a large adjustable wrench and some needle nose pliers for the cotter pin.

What's not to like? :D

bcd
09-11-2017, 03:05 PM
I have the acme 2241. I noticed improved hole shot and fuel economy over the stock prop. It's a 15 x 14.25. I don't have exact comparison numbers, wasn't planning a prop change, but a log thought otherwise. I wonder how it compares performance wise to the 3155.

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jesam
09-11-2017, 03:57 PM
Great report. Thanks!

Coloradodude
09-11-2017, 06:14 PM
gent13
I had the same factory prop as you did -(OJ 522 - 14.75 x 15.5) I followed Cantrepeats advice and contacted Eric at OJ Props. Eric suggested the (OJ 848 - 15 x 14). I absolutely love the prop. No loss at top end and big boost in the hole shot. Hope this helps someone

gent13
09-11-2017, 06:19 PM
Agreed. I actually flipped my 848 to my x30 after trading in my x2 and I noticed the same difference. Gave up about 3 mph on the top end but so worth it on the bottom end


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ttu
09-11-2017, 06:25 PM
Just thought I would follow up on this thread to help others out with their X2 prop decision.

2013 X2 5.7L Ilmor with Gen 2 + 250 lbs extra ballast placed from the tower base towards the rear of the boat.

Stock prop was an OJ 522 (14.75 x 15.5) that worked Ok for surfing and wake boarding with the tripple tab auto launch on but struggled some with 6+ adults getting up to speed and maintaining cruise set speed when fully ballasted.

New ACME 3155 prop (15 x 13 .105 cup) has a lot more blade surface area than my stock OJ prop as you can see in the photo. (stock OJ left new ACME right)

First impressions is the 3155 is awesome! You have to adjust your throttle control as the hole shot is way more aggressive than before. Boat doesn't seem to slip and then accelerate like it did ballasted with the stock OJ prop but rather it just grabs and goes! Engine seems to hardly be working now getting going for surfing, speed holding is better and the surf wake is cleaner especially on the starboard side.

So far no noticeable top speed loss and the engine runs 200-250 RPMs less while surfing. Already notice a decrease in fuel consumption when surfing with the 3155 and the part throttle acceleration jump is very much improved.

Prop change was an easy 10-15 minute swap standing in the lake with the boat on the lift. Prop pulled right off with no puller required. Only tools needed was a large adjustable wrench and some needle nose pliers for the cotter pin.

What's not to like? :D

did you notice any difference in the surf wake? I am still running the original from my 07 x2.

SS LS1
09-11-2017, 09:49 PM
Just thought I would follow up on this thread to help others out with their X2 prop decision.

2013 X2 5.7L Ilmor with Gen 2 + 250 lbs extra ballast placed from the tower base towards the rear of the boat.

Stock prop was an OJ 522 (14.75 x 15.5) that worked Ok for surfing and wake boarding with the tripple tab auto launch on but struggled some with 6+ adults getting up to speed and maintaining cruise set speed when fully ballasted.

New ACME 3155 prop (15 x 13 .105 cup) has a lot more blade surface area than my stock OJ prop as you can see in the photo. (stock OJ left new ACME right)

First impressions is the 3155 is awesome! You have to adjust your throttle control as the hole shot is way more aggressive than before. Boat doesn't seem to slip and then accelerate like it did ballasted with the stock OJ prop but rather it just grabs and goes! Engine seems to hardly be working now getting going for surfing, speed holding is better and the surf wake is cleaner especially on the starboard side.

So far no noticeable top speed loss and the engine runs 200-250 RPMs less while surfing. Already notice a decrease in fuel consumption when surfing with the 3155 and the part throttle acceleration jump is very much improved.

Prop change was an easy 10-15 minute swap standing in the lake with the boat on the lift. Prop pulled right off with no puller required. Only tools needed was a large adjustable wrench and some needle nose pliers for the cotter pin.

What's not to like? :D

did you notice any difference in the surf wake? I am still running the original from my 07 x2.


Yes, noted it red above. ;)

FYI, The ACME 1285 has been the go to prop for years on heavily ballasted 5.7L X2, X15, X10 and X30's and loved by many people. It is still recommended by my local dealer since it's a proven prop and they are not familiar with the 3155 yet.

The 3155 is their newest design and was recommended by ACME. It is a low end monster compared to your stock prop and they were spot on with their recommendation. :D

ttu
09-12-2017, 01:27 PM
Yes, noted it red above. ;)

FYI, The ACME 1285 has been the go to prop for years on heavily ballasted 5.7L X2, X15, X10 and X30's and loved by many people. It is still recommended by my local dealer since it's a proven prop and they are not familiar with the 3155 yet.

The 3155 is their newest design and was recommended by ACME. It is a low end monster compared to your stock prop and they were spot on with their recommendation. :D

sorry, I just learned to read!:D:D

SS LS1
09-12-2017, 01:32 PM
sorry, I just learned to read!:D:D

Touche' :D8p

rgardjr1
09-12-2017, 02:30 PM
Book marking this one.