oil catch can install
What is the best way to install one on a evo.
http://i259.photobucket.com/albums/h...ille/newwe.jpg |
Re: oil catch can install
Is it not the same as DSM's?
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Re: oil catch can install
The way I did mine deletes the pcv valve. Just screw a nipple into it's place, run a hose from that and the other valve cover breather port to the catch can. Then have a seperate hose come in through the top of your can and go to your intake pipe.
I'm on a blow-through setup though, so I don't know how this would apply to you. |
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Interesting. On the X the stock line runs from the valve cover to the intake. When I install my AMS intake (which doesn't come with the inlet) I was just going to run the line to the catch can. I didn't think there was a need for an outlet on the catch can. Need to research that.
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Re: oil catch can install
Ideally you're going to want 2 catch-cans for a proper install and to maintain vacuum inside your crankcase.
VC breather ---> MAP crankcase vent (optional but recomended) ---> catch can ---> intake pipe AND stock PCV ---> catch can ---> MAP crankcase vent ---> intake manifold http://www.maperformance.com/map-cra...acuum-kit.html |
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If you want to route both the breather and PCV to a can then yes, you need 2. If you do just one can though then pick which of the above two is more important to you and go that route. I personally have 1 can setup between the VC breather and intake pipe.
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Doing that, without any check-valves, is a terrible idea since you'll be pressurizing the catch-can AND crankcase during on-boost conditions!
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How is there no pressure when you have a line run directly from the intake manifold?
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Evos and DSMs have their VC breathers and PCV valves setup in the same way, just in different locations.
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Why not have both the VC outlets go into the intake pipe? The PCV going into the intake mani is pressurized under boost so it does nothing. If they both go into the intake pipe the turbo will be sucking air out from both VC locations at all times. Granted this will probably look messier, but oh well.
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http://www.mitsustyle.com/photopost/.../breather1.jpg
The 2 red hoses go to my catch can. Then the green hose goes to my intake tube. No pressure, only vacuum. Quote:
Thats the point of a catch can dude, to catch the shit and suck out vapors. It's a better way of doing the same thing the factory did in my opinion. |
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