Other Thinking about making/ selling waterline restrictors

[High Speed Industries]

Just making this thread to see if anybody would be interested in some waterline flow control devices. I'm thinking about making up a few and putting them in the for sale section. They will be made for a 3/8 water line at first and if demand is high enough I can make them in other sizes. If I make smaller sizes they could be used as fuel return line restrictors. These will fit inline so you can put them anywhere. I will make these to use a mikuni main jet as the restriction that way you can adjust it as needed. The housing will be made out of aluminum so it will be corrosion resistant. I've made a few for my skis and so far they work awesome. I typically use them for the waterline that goes to the stinger on aftermarket pipes. It gave me more throttle response on every application and if adjusted correctly it will not run your exhaust too hot. Let me know what you think and if you would be interested. Once I make a few I will post up how much the cost of them will be. Any input is good input.
This is a picture of the very first one that I made. My new ones work and fit much better.

 

[swapmeet]

Just a suggestion, and you may already plan to do this. I would include 2-3 jets to get someone started, basically a 'small, medium, large' option, let them fine tune something inbetween if they want to.

Pretty cool I guess. You do know there are other options to this right? Not going to name drop and F up your thread, just making sure.

 

[High Speed Industries]

I was considering just including a #200 jet because it's the biggest. In order to tune it correctly you start out too big and work your way smaller. I would consider including more jets but it would raise the cost and it's not like main jets are too hard to come by. I do know there are other options out there but you end up spending $50+. I plan to make mine in the $10-20 range. Thanks for the input.

 

[Matt_E]

200 (2mm) is about the smallest I'd go. I use 2mm restrictors on a dual cooling, dual outlet application in water below 45 degrees

 

[High Speed Industries]

It all depends on the application there would be some guidelines that I would give when I sold them. For the most part I would see these being used for the stingers on aftermarket pipes. I did this on a Kawi 750 with a limited pipe and it was a night and day difference. It also depends on how much water is flowing thru the pipe to begin with so everybody's application could be different.

 

[High Speed Industries]

I do like the quick connect idea but my experience with them is that they are prone to failure, or I just happened to get a couple of bad ones. The webber jets are a good idea except that they aren't offered much larger than mikuni jets. One of my goals was to keep the jets ski related that way they would be easier to find for somebody that is already in the sport. If you guys think flow really is an issue I could offer some bigger jet sizes (I would drill out mikuni jets) and include them in the kit. I never really looked at it but I think you could go as big as 3mm before you had an issue.

 

[aramis]

I would recommend to not use plain aluminum for something that will have:
a) fine threads
b) continuous exposure to water
c) continuous contact with a dissimilar metal.

just my $0.02.

 

[High Speed Industries]

I suppose I could make them out of brass if you think it would be that much better. I don't think brass material will be too hard to find.

 

[XJCrawler]

Don't know how many you would sell since Jetworks already has a really got solution for this

 

[oxnard111]

Don't know how many you would sell since Jetworks already has a really got solution for this

and Jetworks is coming out with an updated version by the middle of November.

 

[High Speed Industries]

I never liked how the jet works valves acted. I like the idea of a consistent restriction. I guess we will see what happens in November. I really wonder how much the new jet works valves will cost.

 

[#ZERO]

Jet-Works sells the quick disconnect type of restrictors with brass inserts and the inline needle valve type with the adjustment knob, not just the flow control valves.

 

[Schmidty721]

I run the Jetworks quick disconnect on my engine bypass to control engine temp.

One the pipe side I used orange wire nuts, the ouside of the plastic cone fits snuggly inside 3/8" line and you just drill the end out to whatever dia restriction you want. Wide end of the cone upstream and it just funnels that water down to your restricted outlet. Works great and like 50 for $2

 

[#ZERO]

Personally I just use a piece of 3/8-inch OD black nylon rod cut in one inch lengths with some holes drilled through the center section in various sizes and install them inside the cooling hose right before the bypass fittings.

 

[High Speed Industries]

The idea was to have something similar to your nylon idea but it would have a jet in it so it would be interchangeable.

 

[#ZERO]

You could use an aluminum hose to hose barb fitting and tap or drill the end to accept a restrictor of some type. McMaster sells them in many sizes and a variety of anodized colors. I've used them with the straight and T type fittings tapped on one end for use with a Mikuni main jet for fuel line return restrictors.

 

[High Speed Industries]

That's more or less what I was going to come up with. The problem I have run into with using barbed fittings is that a 3/8 fitting has too big of an inner diameter to tap for a main jet. If I ran a smaller fitting it wouldn't work for most cooling applications. Or do the aluminum fittings have a thicker wall than the brass fittings.

 

[#ZERO]

The wall thickness is about the same as the brass type fitting and I'm sure you could locate a push-in or screw-in type jet with the correct diameters similar to these.

These push-in Weber air corrector jets come in sizes 1.00mm through 2.50 in 0.05mm increments and could be drilled to larger sizes.

http://www.webercarbsdirect.com/Air_Corrector_Jet_DCOE_IDA_IDF_p/77401.xxx.htm

http://www.webercarbsdirect.com/Air_Corrector_Jet_p/77201.xxx.htm

I've tapped the Factory Pipe exhaust chambers stinger inlet hose barb fitting for use with the Weber air corrector type jets and it works well to restrict the water flow going into the waterbox. Usually the dryer the waterbox the better the performance but it can get too hot with the smaller size restrictors and melt your exhaust hoses if there's not enough water flow.

 

[High Speed Industries]

Yea. Maybe a push in style will be the way to go. I will have to look into it more before I jump to conclusions.

 

[High Speed Industries]

I just prefer the thread in idea because it can be changed easily. I can see the push in style getting corroded and stuck after a few rides in the salt.