Ok i have read and saw these things hooked up many ways lol, and i am wanting to know if anyone knows the right way to hook it up? Dose it go inbetween the intake and the block, or between the vc and section pipe on the turbo. Ps this is a ka24det

37 views and no one knows? I know someone knows on here.

Both. Run one can that goes between the pcv valve and the box on block, and another between the vc and the intake on the turbo.

Never heard of running two. The box on the block is the pcv.

Ok let me know if this will work. I am going to put a catch can after the pcv box then a t fitting then a check vavle. Off the t run a line to pre turbo. And from the vc a line to another catch can then pre turbo.

Well will it work?

WD has a badass article he wrote up for this pcv setups. search it im sure you will find

I want this one if it will work. This way it should work under boost.

Sorry dude, didn't see this thread. The catch can can be placed in various places. The point of the catch can is to stop oil fumes and blow-by gases from entering the intake manifold. Currently they are entering the intake manifold via the PCV valve and then into the intake. The catch can can be placed inline between the intake manifold and the pcv valve. This will keep you from ingesting a bunch of crap. The line from the VC can also be run to the catch can for instances when the crankcase becomes pressurized because the pcv valve doesn't flow enough volume to "suck" it all out.

The main idea is to have a catch can of some sort inline between the motor and the intake tract.

Sorry I didn't reply earlier bud.

Its cool man, i am just trying to find a way to make the pcv work off and on boost. I hve a idea i think might work i posted.

Here's what i'll be doing, I may adjust the size of the fittings (Mcmaster-Carr). The catch can will be a Saikou Michi DC3 split

That will work but not under boost. See under boost that check valve will close and the pcv will not be working when it needs to work the most. I think the way i want to run it, it will work under boost. Tryn to see what everyone thinks. But you are on the right track. If you add a t befor the check valve and run it to pre turbo it should still suck pcv under boost but i am not sure cause the vc will be being sucked on too. I am thinkn there will be a stale mate between the two lines.

Right, only under vacuum, where most cars will spend 99.9% of the time. To get the pcv to function under boost you need a vacuum pump, an exhaust scavenging setup, or HOPE that the turbo intake pulls enough air to get the desired effect. WD is, correct me if I'm wrong, convinced that a turbo intake will not provide any vacuum and is not the best place for a pcv setup. I think it would work there, but I can't find much info on that particular location.

My evo came with the valve cover pcv hose connected to the turbo suction pipe, but its a factory setup with a very restrictive air box/paper filter.

I would love to get a vacuum gauge there to see if it pulls enough to be useful.

Under boost it will pull enouf. See on the set up i am thinking of the pcv will run off the intake when not in boost like it should and under boost the turbo will run the pcv setup i have seen turbos suck hoses closed befor on the dyno so i know the is vac there under boost. Mayb not at 5 psi but i am running 20psi and 15 every day. Volvos in the 90s with the inline 5 came out with a rubber intake tube for the turbo i have seen them suck close befor. But yes i want to plum a boost gauge into the suction tube on the turbo and put it in the car so when under boost i can see how much vac it pulls to.

I use a vacuum lined connected to the oil dipstick.

I dont under stand that. Wouldnt that suck alot of oil out?

I meant to hook a vacuum gauge up.

O ok haha. Ik the turbo wont have vac at low speeds and at a idel. Only under boost will it have vac. But it would be nice to see what is realy there. I will have to do tgat but right now i am trying to finsh up a oil line for the turbo. I am tired of the steel braided lines leaking so i am making on out of break line. Just taking time to shape it good

I never had any issues with oil leaks using steel braided lines. Brake lines will look nice I bet. Polish them dudes!

Sure did i will post pics after i get all the pices together. I am going to shape and form it around the back of the head and down to the sandwitch. Its going to give it a good clean look. I have bottom mount turbo too so theres alot of heat on it cause of the turbo headder not being wraped. I have tryed three diffrent ones and all have mealted on the inside haha. And its a water cooled turbo.

There should be NO vacuum in the pre turbo pipe. If there is I would look for
a restricted air filter. However, under boost it wouldn't surprise me to see
a little inconsistent vacuum with a gauge. Also, I haven't tried this myself
as of yet, but I would think a slash cut in the pre turbo pipe would create enough
vacuum in the catch can hose to evacuate crank case vapors. I did check crank case pressure on my KAt, at 17psi I was only seeing about .5psi
This was on a freshly built motor with a new PCV valve