View Full Version : X15 Surf Set up Advice Needed

05-27-2013, 10:54 PM

I have an 09 X15 that I want to add additional ballast to for surfing. What are you guys running? Any pics? I did a search on here and was only able to gather that some think the X15 needs a lot of weight for a good surf wake...

I am thinking of getting a piggy back system off of Wake Makers 650lb or just getting an individual bag and tsunami pump for versatility (I surf goofy, but most surf regular).

Thanks in advance!

05-28-2013, 12:19 AM
We have an 08 X-15 and surf mostly regular but sometimes goofy. If there is only 3-4 people in the boat I fill all stock tanks, a 450lb bag in the rear surf locker, 450lb bag on the floor or seat on the surf side and a 450lb bag in the nose walk way. If there are more people we don't always use the bag on the seat or floor in the cabin, but if you want a bigger wave you can. We have ran a 1000lb sac on the surf side in the cabin.

Im no professional but I like it. I got a couple more bags so Im going to try some more weight up front next time out and see how that works.

Hope that helps and looking forward to hearing some more options

05-28-2013, 12:50 AM
just went on a surf session last night, with stock port hard tank full, stock kgb full, 400lb sac on overflow of the port tank, then a 900 pound sac on the seat. surf wave was long, but sucked and washed out. never have been able to dial the wave on mine since i bought it.

05-28-2013, 08:43 PM
I too have an X15...I pulled the rear hard tanks and added 1100 lbs bags. We run the KGB full and the 1100 full and 200 or so in the opposite rear bag. I surf on the driver's side and we use a Ronix 4'10 Koal.

We love it...

If you need the valves I'm selling three in the classified

06-01-2013, 04:30 AM
On our 2012 X-15 we surf mostly goofy (Starboard) and fit 1100lbs bags in the cleared out rear compartments on top of the hard tanks, two 400lbs Nautique wedge sacs under both front seats, a 450lbs and a 750lbs to play around in front walkway and underneath the seat behind the driver. Wake can get pretty big that way but it's not easy to get it dialed in...

...still waiting for the piggy back software update from Mastercraft...

06-02-2013, 09:16 PM
wow.. thanks for the replies.. It seems that a 650lb sac is not even a starting point. I am thinking of going with individual sacs now instead of the piggy back system. Seems to be more versatility with them.

Anyone have any photos of their waves?

06-03-2013, 11:05 PM
On my 2007 X15 I run the stock port and kgb tanks full, starboard tank 1/4 to 1/2 full, then I have a 400 lb bag in the port locker, 1000 lb L-shaped bag on the port side/rear seat, and a 400 lb bag in the walkway between the front seats. All passengers on the port side, and someone usually sits on the sundeck, and one up front to help lengthen the wave. But like many others, it always depends on how many people are on the boat. I use individual bags and a tsunami 1200 to fill them.

06-14-2013, 02:01 AM
this is what a heavily rear starbord weighted X-15 spits out, kgb/stbd full, plus about 750 in rear and 400 behind drivers seat, not front sacs that day...
not very clean, but rideable...


05-12-2014, 12:31 PM
ok this is on regular side but I switch it to goofy after moving batteries. I believe this is with 1200lbs in back. That is 400lbs in stock tank and 800lbs bag under the seats. Then 800lbs up front. 400lbs KGB and two 200lbs bags under the front seats.

08-13-2014, 07:01 PM
What speed are you setting perfect pass at?

08-13-2014, 09:33 PM
I have weighted mine similar to what users are talking about above, and get similar waves, although mine gets better with the surf tab down about 50% on the opposite side. Not sure you have a surf tab though. So far, running at 11 mph has been what is best for us. We get a good surf wake.

If you call Wake Makers, they will help you out with what you need. Post again after you get more ballast and send some pictures of the wake you get.

08-14-2014, 10:35 AM
2006 x15
400 lbs of lead = under the ballast bags
stock ballast full w/piggy back to 2x750's in the back (filled 3/4)
DIY surf gate

sorry for the bad photo, but taken from the gopro - low resolution

08-14-2014, 10:50 AM
rgizzie - that wake looks awesome!

08-14-2014, 10:40 PM
Rgizzie - I am with Ironhorse. Your surf wake looks great. I run almost identical weight in my 2006. My wake is that tall but not as long. Do you put any water in the starboard stock tank? Where do you place your 800 lb bag in the rear?

11-22-2014, 09:57 AM
ok this is on regular side but I switch it to goofy after moving batteries. I believe this is with 1200lbs in back. That is 400lbs in stock tank and 800lbs bag under the seats. Then 800lbs up front. 400lbs KGB and two 200lbs bags under the front seats.

Just so I'm clear, you run the stock hard tank full in the back, plus 800lb (in the back), then 800 up front (my question is where, and what bag are you using), 400 in the main hard tank, and 2 200 bags under front seats (again which bad are you using)?