300/440/550 quiet waterbox? more power!

kawasaki168

kawasaki168

kawasaki168
Location
illinois-wisconsin
what is a god waterbox that is quiet yet very powerful? i had a stock water box with all baffels taken out and it was soo fast......yet way louder than expected? now i need a good waterbox that is going to produce a lot of power yet be faairly quiet or at least quieter then what i had!!!
 
SuperJETT

SuperJETT

So long and thanks for all the fish
Location
none
Jetcraft Turbomuff, if you can find one. The owner passed away several years ago, so they haven't been made for a while but are out there. Very mellow tone, super free-flowing, and if you put more water in it, even quieter at the expense of a little power.
 
kawasaki168

kawasaki168

kawasaki168
Location
illinois-wisconsin
SuperJETT said:
Jetcraft Turbomuff, if you can find one. The owner passed away several years ago, so they haven't been made for a while but are out there. Very mellow tone, super free-flowing, and if you put more water in it, even quieter at the expense of a little power.
Click to expand...

yea well i actually had one for a 550 so i never got to hear it run but i heard it was one of the best? TRUE?? and are the faactory pipe boxes loud?
 
P

Project Ski

X-
Location
NY
i have one of those that i cut and shortened to try and fit my X2. I screwed it up and its laying in my garage right now. Ill have to see if i can fix it up.
 
MTRHEAD

MTRHEAD

Location
MotorCity
The original owner of Jetcraft eng sold the business and owns a shop making buggie stuff and desert stuff

I bought a bunch of his 2" stuff (old misc half moon'd tubings) to make silencers for my twin pipe build. WPP had basically the same internal looking silencer but it was a little different in the flow department. It sucked.....
Jetcraft made 2 specifically for the SX one 90 model and an in hull (side rear area) silencer. Both had a deep sound.
 
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Knucklehead Extrordinaire
Location
Homer, NY
I did the waterbox mod on the 440 and 550 that I built over the winter. The description is in the 440/550 Bible on PWCToday's site; basically you cut the glue to open up the halves of the fiberglas waterbox, remove the little cap on the pipe, and take out the mesh inside it, and glue back together.

I thought the sound level was very reasonable, with the stock exhaust. Then I put in the Coffman's pipe, and it's definitely louder! I got used to it quickly, though, and I hate loud exhausts. I think if I convert this ski (89 440 that's been made into a 550) to a rear exhaust, it will be fine at this noise level.
 
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Knucklehead Extrordinaire
Location
Homer, NY
Oh, a noise update. The local Constable apparently thought the Coffmans with gutted stock waterbox was too loud, too. No ticket, he just told me to keep the ski offshore because of the noise.

So I'm now in the market for a good aftermarket waterbox that's not too loud, too!
 
monoshock

monoshock

Location
Lake City TN
Just pull the screen out trough the inlet side of the stock water box. Big power gain, but not much louder than stock.
Use a long drill bit and wrap it up and yank it out. I also use a welding rod and made a sharp hook on one end and pulled the screen out.
 
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Knucklehead Extrordinaire
Location
Homer, NY
There's a good thread on this over at PWCToday; Randy at Watcon told me that a rear exhaust will help a lot, and a guy on PWCT said he covered his stock, gutted waterbox with soundproofing foam and that helped the noise a lot. That fits with my feeling, that the noise isn't all coming from the exhaust, it seems to be coming from the hood, although it's hard to tell since the two are so close (left front exhaust on my 440/550)

So who's got the rubber hose that's needed from the waterbox to the rear exhaust that they'd like to sell?

Michael
 
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