SuperJet Rear Sponsons

[Barbieri972]

so I wanted to try some rear sponsons on my ski but didn't wanna spend $150 on a set so I made them my self, what do you guys think? Anything I should do differently? I bought a $12 cutting board and it has enough material for 3 sets, I've only made the ones so far, i haven't made it to the lake yet cause I'm also building a new motor for this ski but I would appriciate anyone's input on how to improve them and also if anyone would like to try them I'll send you a set if you pay shipping, ( I only have 2 other sets ) once I get them dialed in I'm going to counter sink the bolts into the glass and turf over I just bolted the up through the turf for now. Any imput helps!

 

[Vumad]

I made something similar for my superjet a few years ago but I used epoxy and glass. If I did it again, I'd have used cutting board. They worked great. Actually, I tried to put them on my X2 when has a very short bond line, not enough meat, so one broke off and went to Davy jones. Haven't been riding much so haven't replaced it yet.

http://www.x-h2o.com/index.php?threads/my-1st-superjet.103772/page-4

 

[Barbieri972]

Cool I'm glad to see someone has tried it and liked it! Hopefully my motor is done this week and I can go try them!

 

[Jhucke]

I really want to try them on my round nose. Let me know if you need a test guinea pig

 

[Barbieri972]

I'll cut you a set out this morning, how big is the lip of the side rail?

 

[Jhucke]

I'll cut you a set out this morning, how big is the lip of the side rail?

I'm honestly not sure, I'm not at home to measure and won't be until after work. I would venture to say that it is almost the exact same as the squarenose rail.

How are you mounting these by the way? Are you using the stock side rail holes? I wanted to play around with how far back I place them because all the Kommander K1Rs run the rear sponsons in the middle of the boat instead of the rear and have heard that some superjet guys have been starting to do this as well.

Side note, I like the graphics on your SN, they look sharp.

 

[Barbieri972]

Thank you I appriciate it! I used the stock 2 back holes then drilled 2 new ones where I needed them, I'll leave them instilled if you wanna play with that

 

[Jhucke]

Thank you I appriciate it! I used the stock 2 back holes then drilled 2 new ones where I needed them, I'll leave them instilled if you wanna play with that

Yeah that would be great. Thanks for doing this!

 

[ARcubano]

How did these end up working for you?

 

[motoxracer1551]

Wondering about that also! He also had the front ones too. Tubbies or sponsoons i believe they're called. I wonder if the front or rear hull mods made more of a difference...

 

[john zigler]

I have a set of Beach House rear sponsons for Super Jet. Would sell $50 + ship



If interested, you can order here. I only have ONE set;

https://www.watcon.com/used-pwc-jet-ski-parts

John

watcon@watcon.com