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420A Proper Catch Can Setup

Posted by BLACK'98DSM, Oct 22, 2019

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  1. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Has anybody put a catch can on their N/T? I think the pcv valve is allowing too much oil to pass by into the intake. I've replaced the pcv valve twice, it seems like all of them are cheap. I'm curious if I can run a vacuum sealed catch can on the lines running from the valve cover to the intake manifold. On the same line as the pcv, just to catch what the pcv will miss.
     

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    1998 Mitsubishi Eclipse N/T
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  2. electrohead

    electrohead Probationary Member

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    Atlanta, Georgia
    I use a Radium catch can with their PVC valve. It's a nice baffled catch can. Little pricey, but you get what you pay for. And it has a dipstick to allow you to monitor the oil level. They have cheap knockoffs on Ebay, but I'd rather support companies that do the hard work designing products for car enthusiasts.
     

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    1999 Mitsubishi Eclipse N/T
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  3. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Word, thanks for the reply.
     

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    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    340  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

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  4. dsmcrzy

    dsmcrzy Proven Member

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    Trenton, Ohio
    If you run a catch can with out a pcv valve and still plumb it into the manifold you will essentially have a vacuum leak and will have a high idle because of it. If you want to delete the pcv valve you need to only use the port before the throttle body.
     

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  5. BLACK'98DSM

    BLACK'98DSM Proven Member

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    I would be ok with keeping the pcv valve if I have to.
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    340  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    257  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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  6. electrohead

    electrohead Probationary Member

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    Joined Mar 5, 2011
    Atlanta, Georgia
    Here's my setup. The Radium catch can with PCV valve is where the oem airbox was mounted. 20190321_194203.jpg
     

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    1999 Mitsubishi Eclipse N/T
    fwd · automatic · 2G DSM
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  7. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Awesome, thanks for sharing.
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    340  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    257  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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