Super Jet flow control valve pop off

[JPCharmin]

your choice, some do use a drilled out jet. i use one of my spare restrictors from my kit.



i didnt see that Dustin (he mentioned it, you have a lot of names mixed up) had already covered the restrictor. but we are talking about the same thing. between the flow control valve and the stinger.

it just keeps the water consistent after opening, otherwise it would be a big gush of water...? maybe think of it as a jet in a carb... i didnt question Art when he suggested it, i just do as he says and my setup runs really well.

I had one name mixed up, i meant what you, tzane, had posted earlier and what Matt_E had posted here:

http://www.x-h2o.com/threads/80959-Cooling-Line-restrictor

So again, would it be more beneficial to have them coming off the head instead, and 2, 3, or 4mm?

 

[Tyler Zane]

I had one name mixed up, i meant what you, tzane, had posted earlier and what Matt_E had posted here:

http://www.x-h2o.com/threads/80959-Cooling-Line-restrictor

So again, would it be more beneficial to have them coming off the head instead?

earlier? like 2 years ago lol anyways, no pun intended bro.

using a restrictor as i said is only limiting how much water goes in the stinger. if you use one off the head, before the flow control valve, its going to limit all water flow out of your engine. where as with it between the fcv and stinger, the T before the fcv still allows suffuent water do dump overboard. its only controlling the amount of water entering the stinger, which go along with Matts post in this thread. "run as little water as possible, without melting the exhaust hose"

 

[aramis]

To follow what tzane said...you always want to make sure that the water has a way to get out of your engine somehow...that's why you put a T between the head and FCV to dump water overboard when the FCV is closed. Now, most people recommend and use a restrictor in that pisser leg. What that does is increase the pressure "seen" by the FCV while still allowing enough water to dump overboard so as to not cook your engine. This has the effect of stabilizing the pressure signal seen by the FCV, basically improving the signal to noise ratio. This makes the FCV more repeatable and easier to set, since pressure will build faster and more linearly. So, that restrictor is a good thing.

I know that Art also recommends a restrictor at the stinger (after the FCV) and my guess is that is to help "atomize" the spray to make it more effective and let the FCV fire gradually / proportionally into the stinger instead of like an on/off switch. However, to me, the fluidics just don't make sense. You'll end up increasing pressure between the FCV and the stinger as more water flows, taking away some of the pressure signal from the other side of the FCV that's keeping it open. Maybe in practice it just doesn't matter and that there's just so much positive pressure coming from the head that taking away a bit doesn't matter. In any case, yes I've heard that Art always recommends a restrictor at the stinger too.

 

[Tyler Zane]

putting a restrictor off the T to bring the pressure up for the flow control valve, seems ass backwards. lower the pop off of the valve, rather than restricting all water flow threw the engine. if your running a single cooling line, you really dont need to restrict your one and only bypass.