2015 Supra Surf Tabs

[NickWray]

So my buddy just bought a 2015 Supra SE550 and it’s weighted out pretty good, so the surf wave is good...but the tabs look a little small compared to the new boats (even compared to the moombas). My question is has anyone ever upgraded to larger tabs? Whether it be newer factory tabs or home made ones? I searched for this, but didn’t see anything. If I’ve overlooked the discussion please point me in the right direction.



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[Stazi]

Larger tabs will NOT make the wave bigger. You actually want as little tab interaction in the water as possible so as to delay the wake convergence, but NOT start lifting the stern out of the water.

The tabs on the 2015 are fine.

You want a bigger wave - add more weight!!


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[MJHSupra]

That was first question. How much weight?


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[NickWray]

That was first question. How much weight?


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It has the enzo bags in the rear plus crew. This might not be enough weight for a SE?


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[MJHSupra]

With bigger bags, you should have a really good surf wake.

With an add’l 500-750# in the middle of the boat, it probably would be great.

Do you run a big crew?


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[MJHSupra]

GSA tabs are a different design, so you might get different results. The company probably put a lot of R&D into them.

When I go over the MC forum, those tabs work well on the big, heavy X45.

Have not seen people put them on the SE.


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[MJHSupra]

Not sure if this relates, I installed Wakeland Tabs on my 2007 Supra ?3-4? years ago.

Then 1-2 years after my install, Moomba came out with a newer surf system and bigger tabs. I was able to retro fit and install them on my Supra.

The owner of the company warned me I might not see that much difference.

Results: they were better, but not that big of a difference. I was not thinking this would happen b/c I excepted easier and more with bigger tabs.

I also found “less is more” on running the tabs. One would think that you can crank down the one side and get better results. Nope.

Finding the right pitch, roll, and weight (more is always better) was always the secret.

That is why I think Autowake is great and gets you to those magic numbers. My crew size changes a lot, sometimes small, sometimes large, sometime on the middle. So I had to learn to adjust I that manually.

Just my observations . . .


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[MJHSupra]

Here is the difference. Never mind the discoloring on the orig ones.




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[MJHSupra]

There is also a thread on here my Shoebox on Homemade Tabs. Good read. It has some results on smaller vs bigger. Plus there are a version of tabs that were made to look like the GSA design.


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[Shoebox]

There was not a huge difference in the wave between the GSA-style tabs at 21" long vs shorter, simpler tabs at 15" long.

What blew me away is how little downward deflection was required for the best wave. About 5° down (compared to the bottom of the hull) for both.