300x stock impeller or solas?

[formula29]

My ski is only turning 7200 rpm @ 67 mph with the solas 14/21, is this to much impeller or should it turn more rpms, the rest of the ski is stock for now,

[nicjak]

you need a scom to take advantage of it.

[formula29]

Thanks nicjak, The ski had the 14/21 in it when I bought it, I have a scom on the way, so the ski will need supporting mods besides the scom to turn the 14/21? Air intake and vent the hull? or should I put the stock impeller back in, I don't want to go crazy, it would be nice to break 70 though,

[nicjak]

wait for the scom then do your own tests and decide. its proven it works for me but others it didnt

[formula29]

with the solas 14/21 I can now turn it up to around 7900 rpms @ 72 mph, my low 7200 rpms before was due to a clogged I/C, I have done all the air mods I can find, what could I expect for speed and rpm's if I put the stock impeller in?

[UnleashedBeast]

Are people checking the pitch on the Solas 14/21 before installing them nikjak? Curious if they are off, or not on the money as advertized.

Would you suggest depitching the Solas to a 14/20 to bring the rpm back up, or has this test failed?

[slothman]

I would say stock prop, scom, with air mods

[sirbreaksalot]

14/21 , scom , air

[sirbreaksalot]

I would say stock prop, scom, with air mods

Why would you say stock ?

[UnleashedBeast]

Waz,

Does the Solas come as a true 14/21 or should you check it first? I have a friend who can check the pitch for me. Some say they have lower rpm with the Solas. What happens if you repitch it to a 14/20 ?

In Yamaha SVHO land, we take the Solas 13/20 and repitch it to a 13/18 to get the rpm higher. If we don't, it slows down the ski. 13/18 is the sweet spot on the SVHO.

[slothman]

I would say stock prop, scom, with air mods

Why would you say stock ?

IMO the cost is not worth the gain

[UnleashedBeast]

I would say stock prop, scom, with air mods

Why would you say stock ?

IMO the cost is not worth the gain

If your stock impeller is damaged, it's best to buy the Solas 14/21. Most aftermarket parts sold for the 310 isn't worth it. Sucks!

Since I have a K Speed reflash, I thought the 14/21 may be beneficial for me.

[sirbreaksalot]

I would say stock prop, scom, with air mods

Why would you say stock ?

IMO the cost is not worth the gain

just so you know

it IS worth the gains
it is worth lowering your RPMS down closer to stock RPMS after you have installed a scom and air mods that WILL increase your rpm and stress your engine.

I was just wondering why you were giving a opinion that does not add up.

I have used 14/21 or slight variances of this prop on all my
2011,2 x 2012 , 2013. , 2014 ,2015
300's & 310's

Waz

[slothman]

I would say stock prop, scom, with air mods

Why would you say stock ?

IMO the cost is not worth the gain

just so you know

it IS worth the gains
it is worth lowering your RPMS down closer to stock RPMS after you have installed a scom and air mods that WILL increase your rpm and stress your engine.

I was just wondering why you were giving a opinion that does not add up.

I have used 14/21 or slight variances of this prop on all my
2011,2 x 2012 , 2013. , 2014 ,2015
300's & 310's

Waz

like I said, it's not worth it to ME.

If the stock prop needs replacement, I would probably get aftermarket. But not until that point.

PS- 8000 rpms is NOTHING for this motor.

[sirbreaksalot]

My 2 300 , 2012 side by side race same mods
my Silas was faster everywhere
1/2 a ski better from the dig.

By by the way my skies ran 8250 most days even with the Solas ( solas lowers by approx 300 rpm )

If if people don't do CORRECT supporting mods , then that's there loose.
People just assume bolting s prop is all you need to do to see good results.

less than $1000 get 74+ mph all day
so to me it's a good thing.

Waz