Knowing I need to replace the ceramic washers in the SC, the local shop convinced me to install your vortech SC impeller at the same time for no additional labor. They also recommended your power filter kit. After I got it home, I decided to look up the upgrades they just installed. They must not read your instructions as you recommend the Solas impeller along with each of these upgrades.

Steve

06 RXP
SC 215HP
51 hrs.
Vortech SC impeller
Pro Power filter kit.
Top loader grate

Question:
My question is what is the downside if I choose to wait until next off season to add the Solas impeller or is this something I could install? I don't see any instructions on your site for it. I did order your top loader grate as I am sure this will help with the cavation issue I read about.

Choices:
installation is easy??
No issue

 

You must either repitch your stock impeller or upgrade to our R-series Solas impeller. The Power Filter Kit will allow the engine rpm to run too high (at the rev limiter) which will hurt performance; not to mention make for an annoying ride!

In addition, the installation of our Supercharger Impeller will only amplify the inefficiency of the stock impeller. You will loose all of your acceleration as the stock pitch is not capable of working with the increased engine power and torque provided by our Power Filter Kit and Supercharger Impeller.

Repitching the stock impeller is the "affordable" way to go, but you won't see the full potential of the performance gain our Power Filter Kit provides.

Our Top-Loader Intake Grate will help with cavitation. But, I recommend replacing the stock impeller with our R-series. The combination of the two will yield the best results and performance gains.

North Texas Yamaha was the Dealer.
Knowing my setup, do you recommend the 14/19 or the 15/20? How difficult is it to install? They want $250.00 more in labor.

Thanks Steve

Installing a new impeller is actually pretty easy. I thought it was an involved process, but it really isn't. I changed the impeller in mine and my cousin's ski. It was easy. If you go to Skat-Trak's website (even though you may not be putting a Skat-trak impeller on your ski, it would be the same process), they have general instructions on how to install impellers. Read through them, make sure you have all of the tools to do the job, and start taking your pump apart. As you're removing parts, remember how they go back on the ski.

If you get stuck, call Riva or your local dealer, and they'll get you back on track.

The 14/19R. The 15/20R is still a little too tall. After you upgrade to Stage II you can pitch up to the 15/20R as the Power Cooler will provide the necessary horsepower (+15) to push the steeper pitch. If you run into any problems before, during or after installing any of our products you can get free help from our tech support rep. He can be reached directly at 954-247-0705 or by e-mail at tech_support@rivamotorsports.com.

BTW - Keep in mind our recommendations are for all around performance. If you're focusing on one area (say top end only) you will need to test different pitches to see what yields the best results for you.

I order the 14/19R today. Thanks for all the help.
Steve

Great! Please be sure to post your experience installing the prop and results after testing it.

hi there what is the difference between the 14/19 and the 14/19r i have a 14/19 and can only get 7900rpm max. out of the hole the ski actually leaps out of the water. my max speed is between 68to 69mph.oh and its a 05rxt.
thanks

The 14/19R is slightly different in pitch from a 14/19 to work with our kits. The tolerance is much tighter with our R props. We pay extra money to have them double checked using a pitch block to ensure every prop is identical.

so what will the 14/19r do that my 14/19 wont. will it give me any gain at he moment its doing 7850rpm pushing that 14/19.
thanks

quote:

Originally posted by RIVA CREW:
The 14/19R. The 15/20R is still a little too tall. After you upgrade to Stage II you can pitch up to the 15/20R as the Power Cooler will provide the necessary horsepower (+15) to push the steeper pitch. If you run into any problems before, during or after installing any of our products you can get free help from our tech support rep. He can be reached directly at 954-247-0705 or by e-mail at tech_support@rivamotorsports.com.

BTW - Keep in mind our recommendations are for all around performance. If you're focusing on one area (say top end only) you will need to test different pitches to see what yields the best results for you.

:/<:


if they are still a little tall would a 13/18 hit the spot.

If you're using the stock air intake system then yes the 13/18 is recommended.

If you're thinking of replacing the stock air intake system with our Power Filter Kit you will need to run the 14/19R.

how would your 13/19r go on my rxt

In a stock craft, not good. Here's our impeller recommendation chart.



It can be found on our Solas Sea•Doo Impeller online catalog page.

I have a 06 RXP 215 and I need a new prop but on that same chart i've seen the 13/18 but also one that says 14/19 and i've been told to get the 14/19. Mine is all stock, which one should I go with? I'm also getting the SS wear ring.

This message has been edited. Last edited by: RappyRap660,

What you see on the chart is our recommendation. The 14/19R will be too tall for a stock craft.

I had the local shop install the impeller after all. They cut me a discount. After many hours of strong performance, the high pich sound of the supercharger impeller disapeared and the performance dropped off to poor. I max out at 6400 RPM and top speed of 60MPH. Anyone know what happened????

You posted that you had your supercharger clutch washers replaced. Did you replace them with stock washers or our Heavy-duty Clutch Washers?

Sorry for the delay. They replaced the ceramic washers with metal but considering the past experience with this shop I am sure they were not aware of the product which they are selling. I took them the part number for your heavy duty clutch washers printed from your website with the RXP and explained the symptoms it was experiencing. They had no comment as to what washer was used, only it does sound like the washers are the issue. Repair time is 30 days!! Looks like I need to forget the warranty and start working on it myself in the future. They probably wont warranty this anyway. This happened after 20 hours of use.

Steve

Before replacing the supercharger the wave washers need to be checked to make sure they're in spec as well. It's not uncommon for people to replace just the clutch washers and find the problem still exists; because the wave washers were out of spec.