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-   -   Which prop best for my X-2 (http://www.mastercraft.com/teamtalk/showthread.php?t=41623)

jon.fedele@activahh.com 06-12-2011 07:11 PM

Which prop best for my X-2
 
I'm trying to figure out which prop would be best for my X-2. Problem is we use the boat for everything from slalom skiing to wakesurfing. Has someone with similar multi-sport uses found the best prop to get a good hole shot, yet still have the top end speed?

It came with an OJ 14.75 x 15.5

nickespi 06-12-2011 08:55 PM

I went to a 14.75 x 15.5 from a 14 x 20 on my X-30 and love it. Doing everything on it.

MIskier 06-12-2011 09:04 PM

You should be able to get 43mph top end, and a decent hole shot for skiing. How much weight are you looking to run for wakeboarding/surfing?

bturner2 06-12-2011 09:23 PM

I'm running a 13.7x17.5 as recommended by Eric at OJ and love it. It slaloms great and surfs well also. I rarely overload the boat using standard ballast with another 300lb sac in the rear on the side the surfer will be. No complaints on the wake for surfing. I have a 14" prop also but it really turns up the RPMs to run at anything above 30MPH. Not a good prop for larger lakes where you'll want to be able to cruse at a good rate. Love the 13.7.......

jon.fedele@activahh.com 06-12-2011 09:46 PM

For wakesurfing I fill the standard starboard (or port) factory ballast, plus an additional 400 lbs on the side of the surfer, and then also the center factory ballast. Surfs great.

It's pushing 4200 RPM's at 36mph. Top end just at 40mph.

jon.fedele@activahh.com 06-12-2011 09:51 PM

Quote:

Originally Posted by bturner2 (Post 761300)
I'm running a 13.7x17.5 as recommended by Eric at OJ and love it. It slaloms great and surfs well also. I rarely overload the boat using standard ballast with another 300lb sac in the rear on the side the surfer will be. No complaints on the wake for surfing. I have a 14" prop also but it really turns up the RPMs to run at anything above 30MPH. Not a good prop for larger lakes where you'll want to be able to cruse at a good rate. Love the 13.7.......

Sounds like the one you're using would solve my issue at higher speeds when we slalom. Thanks

MIskier 06-12-2011 09:51 PM

Quote:

Originally Posted by jon.fedele@activahh.com (Post 761309)
For wakesurfing I fill the standard starboard (or port) factory ballast, plus an additional 400 lbs on the side of the surfer, and then also the center factory ballast. Surfs great.

It's pushing 4200 RPM's at 36mph. Top end just at 40mph.

Yeah if you're wanting to get the RPM's down than the 13.7 will be a good bet. The 43mph was calculated using the engine RPM as 5000...couldnt remember what an MCX runs at.

Jerseydave 06-12-2011 09:57 PM

Quote:

Originally Posted by jon.fedele@activahh.com (Post 761309)
For wakesurfing I fill the standard starboard (or port) factory ballast, plus an additional 400 lbs on the side of the surfer, and then also the center factory ballast. Surfs great.

It's pushing 4200 RPM's at 36mph. Top end just at 40mph.

I think you may already have the best prop for your needs. I am running that same prop on my 05 X-star with the MCX engine. What engine do you have?

What's your rpm's at wide open? What's the altitude where you are? Your boat is lighter/smaller than mine so you should be hitting over 40 mph I would think.

Eric @ OJprops could help you. He'll most likely be along monday when he sees this thread.

jon.fedele@activahh.com 06-12-2011 10:05 PM

Quote:

Originally Posted by Jerseydave (Post 761317)
I think you may already have the best prop for your needs. I am running that same prop on my 05 X-star with the MCX engine. What engine do you have?

What's your rpm's at wide open? What's the altitude where you are? Your boat is lighter/smaller than mine so you should be hitting over 40 mph I would think.

Eric @ OJprops could help you. He'll most likely be along monday when he sees this thread.

I need to doublecheck the RPM's at wide open. I'm at sea level. I've got the Indmar 310HP

I'll give Eric a call.

Thanks all

Jerseydave 06-12-2011 10:12 PM

Quote:

Originally Posted by jon.fedele@activahh.com (Post 761319)
I need to doublecheck the RPM's at wide open. I'm at sea level. I've got the Indmar 310HP

I'll give Eric a call.

Thanks all

I'm not sure what the wide open throttle rpm's should be for your engine, but I would assume 4800-5200 rpms.
You said @ 4200 rpms you are at 36 mph. Another 800 rpms should give you more than 4 mph I would think. See what Eric says, but maybe the 14.25 X 14.5 prop might work better for you (but it will raise your rpms at wakeboarding and skiing speeds)


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