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View Full Version : X Star with 350 enough power?


turbosdad
01-15-2011, 08:15 PM
Is the 350 good enough in an 09??

vision
01-15-2011, 09:33 PM
How much ballast do you want to run?

I have an MCX in an 08 X-star. Has no problems unless you are planning on > 2500lbs of ballast. It will work hard with 2500lbs of ballast, but does fine. We average about 5.7 GPH running moderately weighted so it is efficient. I did slightly prop mine down.

If you need to go 43 mph and have a good hole shot with 2500lbs, then you will need the LY6 or 8.1.

turbosdad
01-15-2011, 10:58 PM
thank you vision. Nope no hole shots or 2500lbs unless surfing

Jerseydave
01-18-2011, 08:24 PM
My '05 X-star has good power with the MCX. I run a 14.75 X 15.5 prop with between 2000#-2500# of ballast and 5-6 people. I am at sea level.......high elevations would require the 400hp LY6 in my opinion.

I also have a 14.25 X 14.5 prop that I used for the Lyman clinic I hosted the last 2 years. Lyman likes alot of weight in the boat, plus I had 8-9 people on those days. I can't barefoot with that prop, not enough speed and the engine hits the rev limiter. Not the best prop for cruising any distance either.

Let's see some pics of this '09 your talking about!!!

CottagerGreg
01-18-2011, 09:06 PM
How much ballast do you want to run?

I have an MCX in an 08 X-star. Has no problems unless you are planning on > 2500lbs of ballast. It will work hard with 2500lbs of ballast, but does fine. We average about 5.7 GPH running moderately weighted so it is efficient. I did slightly prop mine down.

If you need to go 43 mph and have a good hole shot with 2500lbs, then you will need the LY6 or 8.1.



I agree with this. I also have the mcx

jbkriss
01-19-2011, 04:09 PM
Short answer to the OP- yes. I have an 09 x.star with the MCX. It works great for me. Like the others said, when I run 3000# of weight, I use an ACME 14.5 x 13.75 and it works like a dream with all that weight; it feels like having more HP. Plus the low pitch improves the boat handling at idle speeds. Naturally you lose top end speed with this prop but I ride close to where I put in, so going fast is not a high priority for me.

willyt
01-19-2011, 04:26 PM
anyone running a 14.25x14.5 OJ with the MCX/Star combo?

CottagerGreg
01-19-2011, 04:54 PM
travis @ the boarding school ran this on his x-star before and used it a lot with fly-high plus some setups....

works great just lacking the top end... stump pulling power though

Jerseydave
01-19-2011, 05:16 PM
anyone running a 14.25x14.5 OJ with the MCX/Star combo?

I do when running extra ballast (3000+) and a large crew on board. (see my post above)
Like flashy said, great holeshot, holds speed well, great for surfing too. Top speed is about 38 with the engine hitting the rev limiter so not so good for cruising around or barefooting.

vision
01-19-2011, 07:27 PM
Eric at OJ Props made me a 14.75 x 13 prop, with extra cupping, to improve my hole shot. Replaced the OJ 14.25 x 14 that came stock on my X-star. About 10% better gas mileage as well. But the top end is 38ish as Jerseydave indicated. I have not run the 14.25 x 14.5 prop.

snowslider76
01-20-2011, 04:10 PM
I have the MXC with the OJ 14.75 x 13 and run the flyhigh system full with an additional 250 lbs dry weight in the front. This is pushing it to get on plan and it's slow at best. If I have people 2 in the boat + driver it will get up, if I have 3 the third needs to ride in the bow or no go. Or I need to drop about 25% out of the rear flyhighs.

I've tried running a 550 in the walkway/bow to help with planning it doesn't work.

Hindsight I would have got the 8.1

snowslider76
01-20-2011, 04:11 PM
I don't think I can run above about 34 mph with the 14.75 x 13 but that doesn't matter to me really.

ridesdirt
01-20-2011, 08:49 PM
anyone running a 14.25x14.5 OJ with the MCX/Star combo?

works very good for us.



To the OP, the MCX has served us well, plenty of power and respectable fuel consumption. We do weight it a little and have no problems. I know the pro level riders use a lot of weight, and you do need more power when set up like that...