Centurion Ri257 or 2017 G23

[racer21 4]

BoardCo.... how to you tweak that set up for the 2016 Ri237?

[BoardCo 112]

Ri217 setup is very similar to the Ri237, just doesn't run as much CATS. I would start with those settings and go from there.

 

The 2016 Ri237 is also really similar, the main difference is the level of the Stinger plate. My experience is that if people are having issues it is because they are running Quicksurf too high (70-80). You can do that if you are a higher end rider looking for something very particular in lip shape but otherwise I keep it at 60-70. The 2016 Ri series are essentially the same but the Stinger plate will be a bit different because the shaft angle pushes the boat slightly different.

 

On all 217 and 237s regardless of year I would start with those settings and then play around from there. The golden rule on all Ri series is that butt weight is king - if you are having any issues it is because you need to sink the back end more. If you follow that you will end up with the best wave on the planet.

[racer21 4]

BoardCo... thanks for clarifying.

[luluzer 53]

Boardco, love the info, thank you!! Do you see much of a difference in the 2016 Ri's waves vs. the 2017 RIs? Are there many differences in the two years? Drive shaft angle, gear ratio, stinger plates, ect. . .?

 

Thanks again

[BoardCo 112]

The waves between the 16's and 17's are identical, you just run a slightly different setting on the Stinger plate to compensate for the change in shaft angle. With a different shaft angle the running attitude is slightly different, but not by much. It took about 2 minutes when I first went out on a 2017 to get it dialed right and the waves are the exact same once you dial in the settings.

 

Then only difference between the boats is the shaft angle, otherwise everything else is the same.

[wheels 151]

Boardco, can you explain why the cats fin is the same for either regular or goofy wave. Also by changing the fin what is the difference it will make to the wave?

Edited February 16, 2017 by wheels

[Darkside 249]

Boardco,

Like wheels I am also curious? There are several of us moving into these from Malibu, and as a result we do not have the familiarity with centurions, (yet) Some of us are trying to get a solid baseline setup, so we can hit the ground running.

[BoardCo 112]

Why on the Ri does it run the fin on the same side regardless of which side you surf on? Um... good question... prop rotation maybe?

 

This topic gets a bit hairy but I will do my best. The CATS fin changes the running attitude of the boat across 2 axis points and it is greatly impacted by the rest of the settings of the boat. In other words you can't just say that by moving CATS 10 degrees it will for sure produce "X" result because "X" is heavily impacted by other factors such as ballast, Quicksurf, Stinger Plate, etc.

 

In a nutshell by taking a fully ballasted Ri237 (this is the boat I will use) with the setting I listed above and moving the CATS from 0 (center) to -10 it will change the pitch and roll of the boat to make the starboard side wave slightly less steep with a smoother lip and the port side wave a bit more steep and aggressive. Naturally the Ri237 (and most boats with surf systems in general) throw out a steeper starboard wave and a more mellow port wave and by changing CATS it changes the shaping of each.

 

You can run the CATS at 0 or even at +10 if you want but -10 or so (like I mentioned every boat is slightly different) seems to be a solid setting that allows you to customize the wave shape ideally for any rider just using the Stinger plate. We served up waves for beginners along with Ashley Kidd, Keenan Flegel and Caro Villeneuve with only changing the Stinger plate so not a bad mix.

 

I have to give Brandon Tollie some credit - he is the one that originally showed me the negative CATS setting for both sides and the wave is epic.