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morgan040
05-30-2011, 05:25 PM
When I bought my boat I was told it had a "wakeboard" prop. I never payed much attention untill I found this wonderful website. So I looked at it and I currently have the 13.7x17.5 OJ Prop.

Now I know everyone says to get the Acme 1433, Its 14x14.25 I believe. I just want someone to confirm I am upgrading to a much better Launch out of the water.

Thanks

I have an 06 outback V

DOCDRS
05-30-2011, 10:11 PM
When I bought my boat I was told it had a "wakeboard" prop. I never payed much attention untill I found this wonderful website. So I looked at it and I currently have the 13.7x17.5 OJ Prop.

Now I know everyone says to get the Acme 1433, Its 14x14.25 I believe. I just want someone to confirm I am upgrading to a much better Launch out of the water.

Thanks

I have an 06 outback V

Definitely more launch , although you will lose a little top end

deafgoose
05-30-2011, 10:22 PM
I don't think the 13.7 x 17.5 is a wakboard prop.

I was under the impession the wakeboard prop was the OJ 14.25x14.0.

That's what was on a brand new 2008 Supra when I purchased my boat in 2008. I wanted the upgraded prop so they removed it from the Supra and put it on my boat.

BTW. You will notice a HUGE difference in holeshot.

oddos2525
05-30-2011, 10:39 PM
Used my new Acme 1433 for the first time this weekend. It's like night and day. You will not be disappointed. The hole shot is unreal.

Ian Brantford
05-30-2011, 11:20 PM
When I bought my boat I was told it had a "wakeboard" prop. I never payed much attention untill I found this wonderful website. So I looked at it and I currently have the 13.7x17.5 OJ Prop.


You got the stock prop, not what Moomba had tagged as the upgraded "wakeboard" prop. I.e. someone lied to you. Sorry to have to break it to you, but it's going to cost you to upgrade.

Your prop has a pitch of 17.5". The "wakeboard" prop at that time would have had a pitch at or just over 14" like the others that you'll see members recommend on this board.

At least your stock prop will be a passable backup in case you damage an upgraded one.

Yes, it makes a major difference. I started with the stock prop after the dealer gave me bad advice and said that the upgraded prop was really only for high elevations. Bunk! The stock prop was okay on my XLV with the Gravity III ballast and a small crew, but bogged down when trying to start when heavily loaded. An upgraded prop completely fixes this.

You will have to re-learn how to use a lighter touch for starts after an upgrade. When lightly loaded, the boat will have essentially no lag for acceleration! It's kind of funny how instantly it accelerates -- it's like a toy electric RC vehicle. Make sure that people and gear are secure the first couple of times, because anything that isn't will hit the floor or the water.

ORboatpilot
05-31-2011, 02:50 PM
Why doesn't anyone talk about the Acme 1847? This link describes its use.
http://www.wakeprops.com/wakeboard-boat-propeller-finder/moomba-wakeboard-boat-propellers

rdlangston13
05-31-2011, 08:58 PM
it looks like the only difference in them is the cup...what does that mean? lol

deafgoose
05-31-2011, 10:17 PM
Why doesn't anyone talk about the Acme 1847? This link describes its use.
http://www.wakeprops.com/wakeboard-boat-propeller-finder/moomba-wakeboard-boat-propellers

The question is: Who really cares about top speed?

I think my boat has gone full-out three times in the past three years for less than 20 seconds. lol

I spend most my time at 9-24mph. (wakesurfing/wakeboarding)

LyndonH Dubai
06-01-2011, 08:16 AM
my prop I think is the original for my 2004 XLV, or at least with a few minor reshapes on it
i am having to replace it now and Eric from OJ is suggesting that the 13 X 13 Lc 1" FORCE 4-blade is the blade for me?
can anyone confirm if this is correct, or is this just going back to a stock prop again?
or can anyone else recommend others and who to get it from.
thanks

deafgoose
06-01-2011, 09:37 AM
my prop I think is the original for my 2004 XLV, or at least with a few minor reshapes on it
i am having to replace it now and Eric from OJ is suggesting that the 13 X 13 Lc 1" FORCE 4-blade is the blade for me?
can anyone confirm if this is correct, or is this just going back to a stock prop again?
or can anyone else recommend others and who to get it from.
thanks

Not sure why he would recommend a 13x13 prop. I would definitely go 14x14 instead. You have an XLV so there is lots of clearance.

kaneboats
06-01-2011, 12:32 PM
The question is: Who really cares about top speed?

I think my boat has gone full-out three times in the past three years for less than 20 seconds. lol

I spend most my time at 9-24mph. (wakesurfing/wakeboarding)

Everybody uses their boat differently. I don't barefoot but understand why top end is important to footers. I do run about 11 miles up river every time I go out. Sometimes I like to get back down river quickly. I want some top end. For me the 'tweener prop was the best choice. But I don't run 3000 lbs. of ballast either.

LyndonH Dubai
06-02-2011, 02:55 AM
what is the main difference then between the 13 x 13 and the 14 x 14 apart from the size I assume?

without sounding too thick, but what would change with this?

more upfront power? wake difference etc??

thanks for your reply though

and would this still be supplied by OJ, or can you recommend others and cheaper maybe?

KSmith
06-02-2011, 09:44 AM
What is your current prop size & pitch?

What is your boat model, year & engine?

The difference between 13x13 and 14x14 is the 13x13 will give you some neck snapping hole shot, but I suspect being so small it would also allow you to exceed the max engine RPM unless you kept an eye on it. Your top end wil lsuffer as well.

In a "perfect" world and no slippage on the prop, the pitch (second number) would equate to inches forward per revolution. So the x14 would move forwardx 14 inches per revolution, 13 is 13 inches... But it is not a perfect world...

The first number is Diameter. 13 seems a bit small, it will be easier to turn as there is not as much blade surface as the 14. Then there is cup, which is basically grip, more cup = more grip but also more power required to turn, less slippage and usually less vibration with higher pitch but you may want to research further if you are interested...


14.25x14OJ is what is being marketed as the "wakeboard" prop. On my boat is has great hole shot, decent top end and I am right at max rpm at WOT.

It really depends on how you use your boat and what is important to you. I prefer hole shot over top end, I hardly ever run WOT and when I do it is for quick bursts. When I cruise from point to point I usually run around 30-32MPH, any faster and it starts burning fuel too fast for my wants, besides, I'm in no hurry (usually) to get anywhere.

I would be interested, for myself, to try out an Acme 1433, but I really don't see the need as the OJ 14.25x14I have seems to work just fine.

kaneboats
06-02-2011, 10:48 AM
The numbers are diameter x pitch. As you go up in diameter you usually have to go down in pitch so the prop is "flatter". The lower the pitch the faster the engine RPM's go up and the faster the boat will accelerate from still. The higher the pitch the slower it will plane but the faster it will be at the top end.

Any change in prop is a trade off. But, some props just work better on certain model boats. My stock prop was a 13.7 x 17.5, I think. It had a lot of top end but was pitched so high that the boat would not quite reach max RPM (although this can be a good thing). On the other hand, it would plane very slowly when loaded down.

I don't load a lot of ballast. I run a 750 in the rear and a 400 up front for surfing with about 8 people in the boat. I wanted a little more hole shot and did not want to give up any top end. The ACME 1161 is 13.5 x 16. It's perfect for my needs. In fact, I think Cab and Moombadaze also run this same prop. But, unlike a lot of others, my second choice would actually be my old stock prop, not the wakeboard prop. But, I absolutely understand why those who load a lot of ballast and want to run at 22 MPH want that prop.

At any rate, the thing to do is figure out what you like to do and then choose the best all around prop for your own application. One isn't better than another but it may be better for you.