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EJVX2
06-21-2007, 10:48 PM
4 blade stainless steel propellor for sale - 13x13 1/2 LH 1"dia.

Mint condition, used as a spare for 2002 Moomba Outback, great hole shot.

Asking $275.00

bigboyfootin
06-22-2007, 10:29 AM
I have been looking for a fourblade. Could you post some pics. Your boat wasn't a v drive was it. Sorry about the large pic but since i posted i havent been able to change it due to new restriction on internet at work.

JoeTechie
06-22-2007, 05:19 PM
Why a 4 blade on the OB ?

Buttafewcoe
06-23-2007, 03:30 AM
I can see why, I own an OB. By the time I get 'all sacked up' she's a bit sluggish out da hole. The extra low end push would come in handy
.
B

JoeTechie
06-23-2007, 05:55 PM
That does not have anything to do with the number of blades !

You simple need a different pitch.

OJ and Acme both make a great 3 blade "wakeboard" replacement for the 3 blade "water ski" prop on that is standard on the OB.

Read this:
http://www.moomba.com/msgboard/viewtopic.php?p=24459&highlight=#24459

-J

Buttafewcoe
06-24-2007, 06:59 AM
Actually,
.
Boat Propeller Advantages/Disadvantages

3 blade propeller vs. 4 blade stainless propeller:
3 blade Advantage- performance, good acceleration, best top end.
4 blade Advantage- best hole shot, increased stability and fuel economy.
5 blade stainless propeller:
Advantage- good hole shot.
Disadvantage- mid-range, top end and fuel economy.
.
So adding another blade without changing the pitch will help dig in and improve holeshot.
.
But Joe is right also. You can change the pitch and accomplish similar results.
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Besides, I like the look of the 4 blade wheel. I guess it's a vanity thing. :p
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Hope this helps
.
B

JoeTechie
06-24-2007, 02:57 PM
"Actually"...

3 blades have almost the same surface area as 4, and that article is comparing SS to brass, old tech. - Nibral changed all that.

This 3 vs 4 is a long ongoing argument. The 3's used to have more vibration then the 4's did, then the 4's got wonky, now they are both pretty stable. A 3 blade creates less turbulence therefore that is why they are used on pro ski boats. Wakeboard boats care a lot less about turbulence so they use 4 blades.

Trust me - the 3 blade OJ XMP will kick your ass and have just as much hole shot on that boat as a 4 blade.

I understand "blade envy" Butta, but there are pills for that now.

:wink:

-Joe

EJVX2
06-24-2007, 07:50 PM
Thanks all for the feedback on the prop. Heres the low down, this prop is mint, 4 blade SS, dimensions previously provided.

I used my OB for primarily slalom skiing, my experience, is that the 4 blade improved hole shot. I only used this prop for 2 weeks as a spare until my nibral got repaired after being whacked by a log.

As this site is a "horrow show" to post pics, serious inquires please e-mail me at evandewall@cogeco.ca, I will then send you pics.

$275.00 for a mint SS prop is a great deal, I would keep it if it fit my LXI.

Cheers!

Buttafewcoe
06-25-2007, 08:38 AM
Yes almost the same surface area, but not quite. And a 4 blade NiBrAl is available, in case you don't want to go w/ the SS prop.
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BTW, that is an excellent price on yours, EJVX2
.
B

Sled491
07-02-2007, 10:50 PM
Traditionally a four blade prop was not only stronger out of the hole, but was flatter in the corners and suffered from less speed loss in the corners. My buddy just put a brass 4 blade on his outback this weekend, very stong, I was impressed.

EJVX2
07-29-2007, 09:48 PM
Prop is sold.