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View Full Version : Guide to Dial In a Surf Wake


KahunaCraft
02-13-2013, 09:23 PM
Please comment on this draft, I'll update as we go. The goal is to help each other shorten the time it takes to dial in a surf wake on various boats. Once you fine tune your surf wake, please post the configuration, ballast location and weight, speed/rpm, location and approx weight of human ballast.

If you already have the perfect dialled in boat, post the numbers, I'll add them to the TT member recommendations section of the document. All members all MC boats welcome to collaborate. If I'm successful writing this guide, we'll be done by July 1st and i'll start the next guide which is Best Practices and Boaters Etiquette For Surfers.

Here is the process to help dial in a surf wake.

Between each test, observe the wake after waiting a few seconds. Maintain the same speed /rpms for the tests. Take notes between the tests, length of the pocket, ease of push height of wave, lip and other useful comparable characteristics.

Test 1. Baseline no water ballast, just human ballast, everybody to the back corner you want to surf. Get three or four friends to help. Use a medium sized board, with someone that can stay up and validate the push and pocket size. You could use a string to measure the pocket. Use duct tape to mark where they place their feet on the board so that can stay consistent as well.

Test 2. Move put one person up front in the bow, get them to sit where you'd put the sac.

Test 3. Then fill the rear surf side ballast 100%, Everybody Stay Seated Same Place (esssp)

Test 4. Then fill the KGB 50% (esssp)

Test 5. KGB 100% (esssp)

Test 6. Fill opposite surf side 50% (esssp)

Test 7. Add the sac to the rear locker surf side and fill it 50%(esssp)

Test 8. Fill rear locker surf side sac 100% (esssp)

Test 9. Fill opposite surf side rear locker 75%

Test 10-15. Have people move around one at a time to various locations in the boat, stay seated for 30 seconds, then the surfer perform the tests.

Test 16-20. Everybody back to their original seated spot, then fill that spare sac, put it under the bench surf side fill it 50%, test, 100%. Move a few people around same sequence as test 10-15.

Test 21-24. Fill the under bench to 100%


Test 25-35. Vary the RPM's/MPH and rerun tests where you found good results. I'd try the first test at 10.5mph ...

Test 36-45. Try moving more weight to the bow.


By following above, you should be able to find what your looking for... For the record, I'm naming this test plan the Twister Simon Says Surf Plan.


I'll clean up the steps test goals and specific techniques for measuring the wake once I add it to a PDF. Looking for suggestions and comments on all accounts.

coz
02-13-2013, 09:44 PM
http://lornasvoice.files.wordpress.com/2012/04/maxwell_smart__confused.gif

KahunaCraft
02-13-2013, 09:47 PM
Ha, ok we'll change the name to The Get Smart and Surf Guide!

coz
02-13-2013, 09:56 PM
Ha, ok we'll change the name to The Get Smart and Surf Guide!

:headbang: :D

CantRepeat
02-14-2013, 08:44 AM
http://lornasvoice.files.wordpress.com/2012/04/maxwell_smart__confused.gif

http://i8.photobucket.com/albums/a20/SunShinesfussfuss/tumblr_md7ip9vx3Z1rfy2fao1_500-1_zps14ea8bc8.jpg

KahunaCraft
02-14-2013, 09:25 AM
might just be a bad idea. without bad ideas, there are no good ideas. Might be better to create a best practice per boat model. Take all the posts that have already given advice and summarize them into one post...

psychobilly
02-14-2013, 09:34 AM
http://lornasvoice.files.wordpress.com/2012/04/maxwell_smart__confused.gif


<insert coffee all over the screen!> LMAO!!!!!!

KahunaCraft
02-14-2013, 06:51 PM
Ok, revamped guide.

1. Search this forum for previous posts

2. Find someone that already dialled it in

3. Go boating!

Golden brett
02-15-2013, 08:49 AM
Like rule #3!!!

JohnE
02-15-2013, 09:11 AM
Whew I like the new guide. My crew would have lost enough weight during the testing to skew the results.

CantRepeat
02-16-2013, 04:02 PM
1. Search this forum for previous posts


http://www.mikesell.net/images/aintnobody.gif

GoneBoatN
02-17-2013, 02:43 AM
So take some people out with you.
Get them to supply their weight information
Ask them to move around, beach the unneeded
When you have the desired results - tell the rest of them get off!

Just kidding. :D

dvsone79
02-17-2013, 02:00 PM
I like this idea. I've played around with weight configurations on my '99 205v. There are so many different factors that effect the surf wake.

My thoughts: the more weight in the rear, the higher the wake. The more weight along the surf-side of the boat, the longer the wake. The slower the speed, the taller the wake, as you get faster, you lose some height, but gain some length.

For my 205v, I fill the 750# fat sac in the port side locker, pull the 750# sac that I normally put in the bow or the walk-way to the bow, put it on the port side floor of the boat (I don't have wrap-around seats), and fill it approximately half-way (depending on how many passengers I have), and all other sacs are empty. Then everyone but the driver sits on the port side of the boat, as close to the stern as possible. 10.5 seems to be the best speed.

This season, I'm going to try surfing on the starboard side. I'm goofy-footed, so I prefer that side. I end up surfing switch most of the time behind my boat since I like having my toes into the wake. My main concern is that since the prop spins counter-clockwise (if you're looking at it from behind the boat), that the surf wake won't be as clean on the other side. My buddy with an '04 Super Air Nautique with a prop that spins the opposite direction has found that the wake is cleaner on the starboard side for this reason. But, I need to at least give it a try on mine to find out.

KahunaCraft
02-17-2013, 02:43 PM
I hear you can change the spin direction of the prop easily with some boats. You might want to look into that.

http://www.mastercraft.com/teamtalk/archive/index.php/t-42683.html

dvsone79
02-19-2013, 06:03 PM
I hear you can change the spin direction of the prop easily with some boats. You might want to look into that.

http://www.mastercraft.com/teamtalk/archive/index.php/t-42683.html

Good info. That's probably a little more involved than I want to get. Plus everyone with a RH rotation was complaining about steering/handling issues.

KahunaCraft
03-24-2013, 10:52 PM
Here's a link to the videos .... Scroll down...enjoy...


http://www.unleashedwakemag.com/?p=6952