Stock RXP degree impeller?

[meeper]

What is the specs, like 13/18??

[Green Hulk]

I think it's a 14/18

[meeper]

According to Riva stock is 13/18, just checked, sound right?

[Green Hulk]

It probably is!

[meeper]

would putting a 14/19R on my stock engine ski help me out or hurt me? I might be adding a wedge also and NOPAS

[Krazy-K]

it would probley hurt your rpm some and with rpm loss
woul probley loose some top end.it may stay the same if your lucky
acceleration would increase I think.(on a cold day top speed would come
up some due to the fact the engine makes more power in the cold and rpm will come up some)Dv8rxp haas this set up on his stock machine and it did go almost 71 mph but was not consintant and it was a cooler day.like 75 deg high with low humidity

[meeper]

thanks.

[way2fast]

Meeper; The Riva replacement prop for the OEM stock prop is a SRX-CD-13/18. The actual pitch of the OEM prop is hard to pinpoint...depends on who the current supplier was when you ski was made. The pitch numbers don't always evenly apply from one manufacturer to another. I wouldn't attempt to use a 14/19 with only the mods you mentioned. Your hole shot and mid range would suck and you probably wouldn't be able to pull enough RPM on top. Do the full Stage 1 if you want to run a 14/19.

Richard

[meeper]

Thanks again guys, im still deciding on keeping warranty or purchasing extneded one. or doing mods. Im not sure if the mods are really worth it, i really dont want to be wrenching every time i try to go out.

[Sunfunzoom]

Actually, the stock impeller is a 10-21 progressive pitch (at least thats what the manual says)