Surf Pointe for older boats

[buckbuck]

I want to start by saying thank you to @Rod5 . With his instruction I adjusted my nozzles to mimic the new Yamaha feature called Surf Pointe. As he said, spinning your steering adjustment yoke 4 complete 360° revolutions so they point into each other should improve the wave with minimal performance hit. If this does not work on my 2008 212X I will report back.

 

[Scuba_ref]

Subscribed!

 

[F.M.]

Following

 

[Rod5]

Glad to hear it sounds promising on our older boats too. Happy to share or compare results after you try it out!

 

[RightStuff]

Looking forward to some pics after the adjustment!

 

[buckbuck]

Well, let me say I am giving this qualified approval.
It does seem to improve the wake slightly while surfing. It does reduce the amount of rooster tail while going at surf and wakeboard speeds. It appears it will reduce the spray hitting the tubers but I have yet to test that. I did not notice any significant performance changes. But this is not a free mod that is going to make dramatic improvements in your wave alone. You are still going to need a Wake Wedge.

The pictures below were taken aboard a 2008 212X with the factory port ballast tank full (approx. 400 lbs). We had 3 people aboard which I estimate to be 550 lbs. I have no fins or rudders on my boat. We were surfing in 5-7 feet of water running about 11 mph.
The first picture is without the Wake Wedge. The second picture is with the Wake Wedge.


The best accomplishment of today is I got my niece's boyfriend up for the first time.


Surf Pointe does not give me a lot of improvement but it is free so the value equation leans toward rolling with it. I would love to hear the experience of others.

 

[Rod5]

Perhaps on the older boats the steering cables have more threads so you can try more that 4 turns each side. My first day out I had 8 turns each side, but due to steering stop issues at 8 turns I settled out at 4.

 

[0627Devildog]

So, whats the verdict in general on this? 4 full 360° rotations on each yoke worth the effort to enhance the wave?

 

[buckbuck]

I believe it is for me. It does not cost anything and easy to return to stock.

 

[0627Devildog]

I believe it is for me. It does not cost anything and easy to return to stock.

I was 100% ready to do this before launching today. . . Had the tools out and was ready to go. . . Then I looked at the available thread on the port nozzle linkage and realized before touching a thing I'd be lucky to get a single 360° turn on it before bottoming it out. . . . . Starboard could have been done sonce ot would have been let out but Port had no where to go.

And ideas?

 

[Scottie]

Remove the yoke, screw on a matching die and thread another 1/4" of the rod?

 

[0627Devildog]

Remove the yoke, screw on a matching die and thread another 1/4" of the rod?

Thought about it. . . Bit even if viable without damage to the cable the excess thread would protrude into the linkages. If I decided to cut off excess may risk ability to return to stock.

 

[buckbuck]

After surfing, wakeboarding and thrashing kids on a tube I have decided I am leaving the Surf Point adjustment on my boat. I did not feel any significant negative performance change and I believe it helped (slightly) with surfing. So for those of you on the fence I suggest you try it.

 

[spatty99]

Assuming my geometry is right (the percentage of remaining thrust per nozzle is equal to the cosine of the "toe in" angle), the Surf Pointe adjustment should have practically no effect on performance.

You would have to get to a pretty extreme angle before drastically affecting performance. At a 10 degree angle for each nozzle (isn't the actual angle much smaller?), you retain 97% of forward thrust. Even at 20 degrees for each nozzle you still retain 88% of thrust.

 

[Scuba_ref]

No one told me there was going to be math...thank you for doing it for me!