Freestyle Flow Controls - never work right

[MDStandUp]

Ive had a couple of the Jet works flow control adjustable things and ive never got them to work right. whats the deal.

Im running dual cooling with one to the exhaust mani and the other to bottom of the head pipe. from the bottom of the head pipe i take it out the top with a straight fitting, to a T, the straight section goes to the flow control and the T'ed of section goes the pisser, after the flow control it runs into my b pipe. the problem is all the water is always running into the water box and never no extra to come out the pisser. Even adjusting the flow control all the way tentioned on the spring to all the way loose i get the same result. what should i do? or what could i be doing wrong?

 

[weston]

sounds like you have it/them installed wrong. Im pretty sure most only use one FCV. Restrict the water going to the stinger. Do not install a FCV if your ski is not 100% dialed in as it will mask/hide problems such as poorly tuned Carbs.

 

[speedysprocket]

You'd have to disconnect the Flow Control Valve from the stinger to see how much water is flowing out of the FCV and when it starts flowing. You will probably have to put some kind of restrictor between you T fitting and the pisser. Otherwise, no matter how far you back off the FCV, the pisser offers no resistance and all the water is just going over the side, not through your valve. You won't see a difference in the pisser, though, just looking at it while running. Mine has less water coming out the pisser with the valve, but that's because it's restricted...

 

[orangefinger]

Flow control

Why are you not running both into the manifold ?

 

[weston]

Idk what you guys are doing? but it's my understanding the FCV is supposed to dry out the water box/stinger not limit the water in to the motor/manifold.

 

[orangefinger]

I have both running into the manifold
then front or rear of headpipe ( opinions differ widley on this ) to T going to stinger, which one goes overboard and the other into the flow control valve then to stinger....that way the water your pipe is receiving is already pre-heated.

head rear into bottom headpipe or front, head front-rear overboard ( again opinions widley differ ).

My flow control valve work exatly as they should without any further restrictors...as soon as presuure builds up the valve opens and lets water into stinger, at low rpm's and idle the valve is closed at water diverts over board

 

[D-Roc]

if you run your dual cooling circuits seperate from eachother you have potential to make some power. you can restrict one and not effect the other. one for motor, one for pipe. if you do not preheat the water going into the headpipe then you can keep it cooler and run it very dry by the adj screws.

 

[MDStandUp]

Why are you not running both into the manifold ?

definetely dont need both going to the mani. I have a Y in the line and then restrictors off the top of the head. i wish someone could make a video with the hood off and show how much water they have coming through the FCV at all different power ranges vs what should also be coming out of that pisser.

 

[Dustin Mustangs]

The fcv is meant to go right before the stinger and should act like a switch. Either no flow or full flow. Art will tell you to start out with it opening at 3k and fine tune from there if desired. He will also tell you to run a 2mm restricter between it and the stinger to limit flow when it is open.

 

[Tyler Zane]

i had to cut half of a coil off of my spring on my fcv to get it within tuning range. i run 4mm restrictors before both pissers and 2mm at the stinger. this keeps the pressure up in my cooling system making the pipes orifices more responsive and tunable.