What do you guys think this CFM VALVE COVER BREATHER will do for performance?

Discussion in 'SRT Hellcat Performance' started by HellScoot, Feb 3, 2016.

  1. HellScoot

    HellScoot Silver Member Hellcat Car Club HCC Charter Member

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  2. Aaron Vogel

    Aaron Vogel Gold Member

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    Its just a breather, i wouldn't see it do anything for performance. Maybe help prevent foul-air-ingestion into the intake from the PCV system, but even that i am not sure how much it affects the cars
     
  3. Confuzed2

    Confuzed2 Silver Member

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    It's an expensive breather....won't do a thing for performance that I can tell. And it doesn't seem to describe any real benefits either....when it says:
    "this breather acts just like a factory oil cap under normal driving conditions and when you get into boost it will release any crankcase pressure present."

    -If it ACTS like a factory oil cap....why not KEEP the factory oil cap?!?
     
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  4. Toolman_42

    Toolman_42 Gold Member

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    I don't see much function with working PVC system on other cover.

    An expensive fashion piece
     
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  5. Confuzed2

    Confuzed2 Silver Member

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    I found this thread while searching:

    Crank Case Breathers Now Shipping

    The only time you MIGHT see any benefit of this at all is under WOT boost. -And how long are you normally under WOT boost? If crankcase pressures were allowed to normally build up, there would be a lot of Hellcats with leaking seals...I'm not seeing that. Not worth it IMO.
     
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  6. terryturner

    terryturner Gold Member

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    The benefit is to not reuse the foul air but unfortunately the vehicles PCV is junk so even with this breather you'll still need to add a check valve to the PCV hose as well to take full advantage
     
  7. FireLane

    FireLane SRT Hellcat Supporter Gold Supporting Member

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    Terryturner, where would you add the check valve to? I already have a catch can and wasn't sure where exactly to put The check valve.
     
  8. Top Cat

    Top Cat Gold Member Hellcat Car Club Gold Supporting Member Fastest Cat/Record Holder HCC Charter Member

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    METCO has a unit and it has a small baffle that only releases air when needed, we run one on both cars.
    TC
     
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  9. terryturner

    terryturner Gold Member

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  10. terryturner

    terryturner Gold Member

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    Do u run a catch can on drivers side? If u go thru that thread a lot of the info ends up eliminating the need for a drivers' side catch can. I still run one on passenger side
     
  11. Confuzed2

    Confuzed2 Silver Member

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    I'm curious....for those of you that do run a catch can on the drivers side - do you get a lot of oil collected there?
    Kind of weird that they use that type of check valve. All the ones I've seen on older cars are metal and have a weak-ish spring and a ball inside. I've yet to see one of those fail. Allowing the excess pressure to escape through a breather to atmosphere during WOT (under boost) would fail me on emissions.....although it was common for the factory to do just that 20 years or so ago...

    On my other car with a blower, I use a factory PCV valve from one valve cover, then to a Moroso catch can, then to the intake port. On the other valve cover I run a breather with a oil separator built in (no check valve). Seems to work fine, but wouldn't pass today's emissions....hell, the whole car wouldn't pass!! lol
     
  12. terryturner

    terryturner Gold Member

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    Driver side catch cans don't catch nearly as much as the passenger side.
    TallCool1
    Rick@Metco
    These guys may be able to help u with a more technical answer than I will. Or it may be in that thread or some other thread
     
  13. MoparProud

    MoparProud Gold Member

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    Nothing
     
  14. FireLane

    FireLane SRT Hellcat Supporter Gold Supporting Member

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    I have a catch can on the passenger side only. I have a check valve, just not sure where to put it.
     
  15. terryturner

    terryturner Gold Member

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    If u go to the thread I posted previous he has a diagram set up and also TC1 has a pic of his after he got the check valve he wanted. Maybe on page 5
     

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