I got a 2004 Stx12f and i got the exhaust kit and air filter on it from Riva and now i want to upgrade the impeller for it. I want to get the impeller which is going to give me the most top speed i ain't worried about holeshot does anyone have any suggestions. I heard the solas X prop and the Nujet 5.5 are good top speed props is this true?

For your application a Solas Concord 12/18 would be best. It will improve top speed without killing the bottom end.

What intake grate are you using currently?

quote:

Originally posted by STX12F_04:
I got a 2004 Stx12f and i got the exhaust kit and air filter on it from Riva and now i want to upgrade the impeller for it. I want to get the impeller which is going to give me the most top speed i ain't worried about holeshot does anyone have any suggestions. I heard the solas X prop and the Nujet 5.5 are good top speed props is this true?

What is your top-speed, right now?

I am using the stock intake grate and also does anyone know if a 2 degree pump wedge would increase top speed at all
My top speed right now using GPS is between 57 and 58 my speedometer reads about 62-63 but i know thats not right
would the concord 13/19 work also or would i loose top end

STX12F_04 , how do you like the free flow exhaust?

You need a 12/18 Concord repitched to 12.5/18.5
You may have to tweak it a bit to get your best speed. Any of the 2 stroke props will not work best if they are not tweaked or repitched, as they are not right at their maximum as they come out of the box.
I myself prefer A Repitched Skat Swirl, 12.5/18.5, much more Grab on the bottom end.
I also have tried the Concord, and the Skat R prop.
The Nujets will not be a good match for your 12 F at all.

Thank you for everyones help I think I have decided to go with the skat swirl 13/19R I here the R props give you lots of top end I should have it within 2 weeks I'll let everyone know my results

I hope you are getting it repitched by whoever you bought it from before it comes to you, otherwise you will be very sorry. The low end will be very poor on that 2 stroke prop.
It was not made for a four stroke, so the pitch is not right.
I have the R prop which is tweaked just right for the 12F on my desk, and that was the result of a couple of repitches by a friend who knows how to tweak them.

Hi i got a stx 12F and i wont a prop that will increase accelleration and speed thanks

quote:

Originally posted by RIVA CREW:
For your application a Solas Concord 12/18 would be best. It will improve top speed without killing the bottom end.