RN Superjet Build From the Ground Up

Joined
Nov 7, 2017
Likes
2
Location
New Jersey
#1
Finally decided to pull the trigger on a Superjet hull off the forum. This is my first build and definitely going to be a learning experience. Now onto the hull, it is a 96' that hasn't seen water for at least the last 5 years. I bought it as a pretty bare hull with the exception of a few parts: blowsion tubbies, WDK rev footholds, shortened stock pole, lowered x-metal bracket, and a few other items. The hull has been reinforced in the engine bay and nose by the previous owner. I was also made aware that the tray is wet and the cooling line needs replaced. There is also a few chunks missing out of the tubbies that were semi glassed in.

My plan for the ski is to make it wave jumping, ocean, and buoy capable. I want it to be an all around rec ski and as reliable as possible. I am riding a stock Kawasaki 750sx right now so I am in no "rush" to have it done.

Any input or advice is wanted and needed
 

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Joined
Aug 16, 2011
Likes
112
Location
cape may, nj
#3
Hey, I was going to look at that ski. Things came up n I was juggling around some funds and decided it was probably best not to grab another project. Glad someone got this. Read through my post. You’ll be basically be doing the same thing I did.
 
Joined
Aug 29, 2011
Likes
1
Location
michigan
#4
Looks like a fun project! Not sure on the sanding other than old fashioned elbow grease, but for the little hols and gouges look for a product called Marinetex.
Basically a waterproof marine epoxy. works really good. Just mix it up, smear it on and sand down when cured.
 
Joined
Aug 9, 2018
Likes
3
Location
St. Brieux, Saskatchewan
#5
Will be a good project! As far as sanding goes you really can't beat elbow grease, but some sort of a power sander would speed up the larger areas in need of sanding. As far as filling holes goes, I would just mix up some epoxy (I use West Systems) with some silica thickener until you get a consistency you like. Works well and can be sanded down smooth fairly easily after it is fully cured.
 
Joined
Nov 7, 2017
Likes
2
Location
New Jersey
#6
Getting ready to cut the tray out and I would like to save the footholds if possible. What is the best way to cut out the tray yet still being able to have room to work on cooling lines, scupper, trim tube, etc.
 
Joined
Aug 16, 2011
Likes
112
Location
cape may, nj
#7
I would remove it in 1 piece if possible. Leave about 1” in the front when you go across so you can lay a decent layer of glass when your done. Do 1” from the top curve and side curve also. Basically will be a big U when you get done.
 
Joined
Nov 7, 2017
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2
Location
New Jersey
#8
Spent some time the past few nights working on sanding the rails, tray, and removing the glassed in cracked tubbies. Definitely not the funnest part of the build. Still need to sand the foam and remove all the 5200 under the tubbies.
 

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Joined
Aug 16, 2011
Likes
112
Location
cape may, nj
#9
Try to cut along the old cut line on the back n top of the foot holds. I used a dremel with a Sabre cut blade. If I were to do it again I would have use an air saw. Blade is thinner and the process is much faster.
 
Joined
Nov 7, 2017
Likes
2
Location
New Jersey
#14
She is definitely wet at 140lbs as a bare hull. I used an electric Dremel with a carbon burr wheel and it cut through the tray perfect. I tried to take the tray out as one whole piece but with the 2 part foam acting as an adhesive, I couldn't quite pry it loose. I lost patience and just cut it into three pieces. I did manage to make one mistake. In the back of the tray I managed to cut a little to deep and just started to go through the top of the pump tunnel. No big deal tho as I caught it as soon as it started to go through. I am thinking of cutting the back piece back a little more to get to the rear pump inserts but I don't want to cut too deep again. I will update again when I get all of the foam cleaned out.
 

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Joined
Nov 7, 2017
Likes
2
Location
New Jersey
#15
Made a little more progress this weekend. Taking out the two part foam is definitely not fun. Still need to remove the exhaust and the remaining foam. I am thinking I might rocker the front with a Carter B Gen 3 kit. I will be cutting back the glass over the pump too make it easier to work. Once I remove the exhaust I need to get a lowered exhaust and figure out a scupper and drain plug set up.
 

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Joined
Nov 7, 2017
Likes
2
Location
New Jersey
#18
Removed everything from the tray weighed it again. The wet foam/exhaust/cooling lines/scupper etc added up to about 40lbs. Next up is filling all the holes with glass and thickened epoxy then reinstalling all the inserts/lowering the exhaust/installing the scupper and drain plugs.
 

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