Welders, waterbox....

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
I gave that base to my friend and remade it 3/4" lower and in black for myself.

That base worked perfect with the westcoast box but my box is bigger and routed better lower.
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Wow, that is some serious tubing to source :eek:

You're right, welds look OK cosmetically. But as long as they are holding it will get the job done!

What do you mean by "tubing to source". You mean the big 6" tube? It was no problem. Like $15-20 per foot on amazon or ebay, i forget.
 
Location
dfw
Aluminum has very low fatigue life so flat sides cannot be used unless the material is very heavy. Your round box will last a lot longer provided the flat ends are thick enough. I had a thin aluminum gas tank that did the same thing, surprisingly the temporary JB weld and fiberglass repair held while the rest of the seams cracked. The problem wasnt strength but metal fatigue.
 

motoman3000

ride
Site Supporter
Location
new jersey
Nice work vumad. How's it sound compared to others you've used?
I tried to cut costs w/ my 1100 blaster and cut open a box bought from @BruceSki and de- baffle myself, but my welders welds leaked fumes like a sieve. Rad dudes to the rescue
 

BruceSki

Formerly Motoman25
Location
Long Island
Dang dude!

I've sold a batch of raider and venture boxes to the rad dudes for them to cut and weld.

Guess it's all in the guy doing the prep and welding.
 

motoman3000

ride
Site Supporter
Location
new jersey
Yep that's what a $50 weld gets , trip to rad land for $350
Props to you tho u shipped my box even before payment arrived. + 1 for bruceski
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Nice work vumad. How's it sound compared to others you've used?
I tried to cut costs w/ my 1100 blaster and cut open a box bought from @BruceSki and de- baffle myself, but my welders welds leaked fumes like a sieve. Rad dudes to the rescue

Much deeper and throatier than my buddy's westcoast box.

He has a 750 sp with a single 44 and a Coffman pipe, I have a 750 bp with dual 44s and a FPP frakenpipe.

His ski got throatier when he switched to my exhaust outlet.
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
I might have missed it. What size tube in and out of the box? Did you go with 2"

2" ID on everything after the stinger. I have a Superjet chamber presently and that is 1-3/4" or 1-7/8" I forget. I may go back to the 750 chamber which is 2" iirc. I didn't used to want to clearance the hull to use the full 750 limited pipe but I think I'm going to try it out so I can use the correct manifold and mounts.
 

QuickMick

API 1104 AWS CWI
Site Supporter
I am a welder for a living... like said the first box design was "fused" together. which is a HUGE NO NO for aluminum, and welding over a compromised weld is also a huge no no, but you also used .060'' material, way too thin for something that requires exhaust to flow out. Switch to 10ga or around 1/8'' thick and make sure the joints are "open" and just the tips of the sheets come together, it ensures 100% penetration. and you can also drill holes and use a small rod welded to each side to help it from expanding under pressure, but you shouldnt have it expanding just from a jet ski exhaust.

There are many factors with a no filler no no, it depends on the thickness of the material, its stressors and uvcorse what code your welding too. Rewelding a crack without excavation is also no good.
Im no expert but only a CWI... I feel that weld failed on the first box because, to thin of material, cheap grade of alumunim, pressure was flexing that box just enough whch allowed the side walls to move enough to start a fatigue crack in the weld. This is why pressure retaining parts work when there are fewer corners that come together like your new waterbox. The round waterbox will hold pressure much better, dome end caps will work even better, but your thicker material upgrade was a good idea since the ends are plate. Im surprised it didnt crack at the toe of the weld.
Everyone fails one time with their R&D, its how we all learn... Good job on making your own parts...
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Did the box break on the high pressure side of the baffle or low pressure side? It's very hard to tell from pics if welds had penetration

It broke on all the welds. The box design and the thin metal were my fault. The poop quality welds using no filler rod were the fault of the welder.

I made a new box, round in design, twice as thick with a better welder and have had no issues, although I haven't ran the X2 much at all. It did seem to work very well.
 
Top Bottom