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PCV oil catch can/separtor

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by Cowpie, Jul 2, 2013.

  1. Goldie

    Goldie Epic Member 5+ Years 1000 Posts

    Cowpie -
    Thanks for the info, it will be handy for me when I get around to doing this. Should the intake manifold be cleaned after install a kit? If so any recommendations? My truck has 48,300 or so miles on it. So I'm thinking there could be some real build up of crud.
  2. Cowpie

    Cowpie Member 1 Year 100 Posts

    That might be a good idea. I would seriously consider a seafoam treatment thru the throttle body and into the intake manifold. Maybe others can chime in and offer something better.
  3. buckmeister2

    buckmeister2 Member 1 Year 100 Posts

    Just a thought for folks thinking of doing this, and wondering which unit is "best". If you are familiar with the "point of diminishing returns", it may never apply better than here. The Jegs unit, or a good quality air compressor oil separator, are about the same item. For our standard-or-slightly improved performance Silverado engines, they will remove at least 80% of the oil that the $180 Moroso unit will remove. With that 80%, you will not "feel" any improvement in performance, though your engine will run slightly better,and certainly run cleaner. If you pay the additional $130 or so for the Moroso, you have exceeded the point of diminishing returns. Maybe it is important to have "the best" at all times, and that is great. But, if that is not terribly important, and you are like many of us who do not have extra money to spend, you are not getting any bang for your buck by buying the best oil separator/catch can available.
  4. KyleZ71

    KyleZ71 Rockstar 4 Years 500 Posts ROTM Winner

    I liked the way the Moroso mounted, was clean looking, and was a larger unit. Sorry if it wasn't the best bang for the buck
  5. Goldie

    Goldie Epic Member 5+ Years 1000 Posts

    Buckmeister - Thanks for the write up. Where did you find the 80% efficiency rating for the Jegs unit? Early last week I sent Jegs an email asking what the efficiency ratings were for the Jegs 52205 unit (the one Cowpie is using) and their Steeda 555-3710 unit. As of now I haven't heard anything from them (very disappointing). I'm guessing the 20% or so not captured by the unit can be taken care of by an occasional Seafoam treament. Any thoughts?
    Last edited: Jul 20, 2013
  6. KyleZ71

    KyleZ71 Rockstar 4 Years 500 Posts ROTM Winner

    I will be honest, every time I change my oil I try to clean my throttle body by pouring seafoam into the vacuum line or by spray can into the throttle body. When I removed my intake manifold for the first time last month I was surprised by the amount of build up in it.
  7. BigBlueLB756

    BigBlueLB756 Rockstar 100 Posts

    If you're after 100% oil vapor filtration, why not just run two Jeg's units in a series set-up? That ought to get pretty close to all of the contaminants out of the PCV supply. And it would still be cheaper than the Moroso-Elite-RX-MikeNorris units.

    Just a thought.
  8. buckmeister2

    buckmeister2 Member 1 Year 100 Posts

    oil separator

    Kyle, I apologize if it sounded like I was raggin' anyone who bought the Moroso, because I certainly wasn't. It is a better looking install, and if I had the bucks, I would do the same. Just wanted folks who may not know it that there is little diff in the performance of the various units. I meant no disrespect, Kyle. Heck, I voted for you for ROTM mainly because you spent the extra bucks on the Moroso, showing that you really care about how your ride looks. Jim
  9. Cowpie

    Cowpie Member 1 Year 100 Posts

    Well, I did the Jegs unit out of the gate, primarily to see how bad of an issue the oil in the PCV is. Well, I am convinced in total. So, the time to move up to a "serious" unit is in order. The best unit I have located is the RevXtreme can. This is one serious top tier unit that has 4, count 'em, 4 chambers. It will hold almost a quart of oil, so would last the entire OLM life cycle. This a a fantastic unit that is very cost effective....$139

    http://www.revxtreme.com/performance-parts/rx-catch-cans/rx-catch-can-single-check-valve

    Here is an article from him discussing the need for a PCV air/oil separator...

    http://www.revxtreme.com/index.php?route=news/news&cat_id=17&news_id=21

    and....

    http://www.revxtreme.com/index.php?route=news/news&cat_id=17&news_id=20


    Here is the design from a rough drawing the designer himself made....

    RX Catch Can.jpg
    Last edited: Jul 22, 2013
  10. KyleZ71

    KyleZ71 Rockstar 4 Years 500 Posts ROTM Winner

    Hmm, very nice. Wondering if that's actual size

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