waterbox Q?

ketsair

ketsair

ISJWTA Member #1
Location
thomas hill reservior missouri
i don't want to remove the lock all together, but has anyone tried just cutting out the cross pipe & making that hole bigger, & shortening the vertical pipe? would there really be any gain in that?? just a question before i glass it back together



 
crammit442

crammit442

makin' legs
Location
here
IMO there is VERY little to be gained in the area of waterboxes. They actually work pretty well and modified or aftermarket boxes usually just make more noise and not power. Most of the popular AM boxes will make less power than stock.
 
ketsair

ketsair

ISJWTA Member #1
Location
thomas hill reservior missouri
crammit442 said:
IMO there is VERY little to be gained in the area of waterboxes. They actually work pretty well and modified or aftermarket boxes usually just make more noise and not power. Most of the popular AM boxes will make less power than stock.
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that was actually what i was thinking, but just wondered if anyone had actually done it & it actually did anything, i'll just glass it back like it is
 
keefer

keefer

T1
Location
Tennessee
So thats what the inside of a stocker looks like. I would think that either increasing or adding another horizontal tube would improve the flow a little. Prolly also make the exhaust note a little louder. Glue a second tube in and see what happens:fing02:
 
crammit442

crammit442

makin' legs
Location
here
keefer said:
So thats what the inside of a stocker looks like. I would think that either increasing or adding another horizontal tube would improve the flow a little. Prolly also make the exhaust note a little louder. Glue a second tube in and see what happens:fing02:
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What would make us think that the flow needs improving? The tubes and holes through the vertical baffle are already many times the cross sectional area of the pipe. I think it's more likely the flow might be "improved" too much? The boats I've played with that were running the currently popular aftermarket waterbox actually ran better when the OEM box was reinstalled. An added bonus is you don't piss off the rest of the lake and get thrown out or get hassled by the fuzz every time you ride.:veryhappy:
 
keefer

keefer

T1
Location
Tennessee
crammit442 said:
What would make us think that the flow needs improving? The tubes and holes through the vertical baffle are already many times the cross sectional area of the pipe. I think it's more likely the flow might be "improved" too much? The boats I've played with that were running the currently popular aftermarket waterbox actually ran better when the OEM box was reinstalled. An added bonus is you don't piss off the rest of the lake and get thrown out or get hassled by the fuzz every time you ride.:veryhappy:
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From the picture I only see the one tube and no holes, so I thought it might be worth trying to add another horizontal tube that was about half the size of the other to improve the exh note. The note of a stock composite box is very muffled, which I agree is good, but the note of a FP aluminum box is not offensive and sounds better IMO. I like the sound of a deeper tone but at the same time not obnoxious loud like the TDR or X-Metal AM stuff. Why not experiment while you have it apart.
 
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crammit442

crammit442

makin' legs
Location
here
Check this out. This is what I was thinking looks like a hole. After looking at the other pics I think you're right. I'd still leave it stock.
 

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Speedfreak

Speedfreak

Location
So. IL
I have a couple things here..... If the waterbox blew apart you might have a problem with your ignition switch also. That is what happened to Thongbonger. His start stop switch had a broken boot which let water in so while you were cranking the ski it wouldn't start but as soon as you let off of the switch it would ignite on the last cycle of the motor causing all of the extra fuel inside the exhaust to go and BOOM he blew his water box apart. After fiberglassing it back together we left the hose clamps loose to make sure that it didn't do it again and it backfired another 4 or 5 times before we found why he didn't have any spark.

And while we had the waterbox apart we done something... I can't remember exactly but it is a bit louder now. I think we left the horizontal tube out. It blew that apart also. Or maybe we left the horizontal tube out and the plate. I can't remember PM him he might know. But it is a bit louder on an already loud FX-1. For some reason those skis already have a rumble that a regular ski doesn't . We didn't really worry about power loss from reduced back pressure he still runs a stock pipe... That is more back pressure than any motor needs ... Like a banana in the exhaust pipe kinda back pressure.....
 
SUPERTUNE

SUPERTUNE

Race Gas Rules
Location
Clearwater Fl.
The old school stuff I did to the fiberglass waterboxes was cut out a 1.5" hole in chamber plate, this was on our waveblaster I's when I ran Kawasaki 650 limited chambers with my 781cc 5mm strokers in the sport mod class and worked really good and sounded like a light muffled racing engine.
 
keefer

keefer

T1
Location
Tennessee
Thats kind of what I was thinking, but not sure. I guess just drilling or cutting a 1" or 1.5" hole in the plate would be easier than installing another tube. I say go for it and it will prolly sound great and be ready for a Team Scream big bore stroker super go fast engine:headbang:
 
ketsair

ketsair

ISJWTA Member #1
Location
thomas hill reservior missouri
SUPERTUNE said:
The old school stuff I did to the fiberglass waterboxes was cut out a 1.5" hole in chamber plate, this was on our waveblaster I's when I ran Kawasaki 650 limited chambers with my 781cc 5mm strokers in the sport mod class and worked really good and sounded like a light muffled racing engine.
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in roughly what area of the plate did you cut the hole???
 
Speedfreak

Speedfreak

Location
So. IL
I am pretty sure that that second set of pictures is what Richards waterbox looked like when we put it back together. I will ask him monday when we get to work.
 
Speedfreak

Speedfreak

Location
So. IL
I was meaning we left the center section out so it is just a hollow box with the 2 pipes in it. NOT ..do you need to know how it goes back together I am sure that you can figure that out even though you aren't used to working on stuff you can still do it.... Just believe.....
 
ketsair

ketsair

ISJWTA Member #1
Location
thomas hill reservior missouri
Speedfreak said:
I was meaning we left the center section out so it is just a hollow box with the 2 pipes in it. NOT ..do you need to know how it goes back together I am sure that you can figure that out even though you aren't used to working on stuff you can still do it.... Just believe.....
Click to expand...

hahaha....if i click my heels together 3 times & there's nothing like brap, there's nothing like brap, there's nothing like brap....then it'll go together on it's own right??? it only goes together 1 way, thanks though
 
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