ATS Crankcase evac/oil separating system
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Cadillac ATS Technical Discussion Forum Discussion, ATS Crankcase evac/oil separating system in Cadillac ATS Discussion Forums; ATS Crankcase evac/oil separating system The RX*system*for the 2.0 Turbo*ATS. Here is what we found. The OEM*system*does NO evacuation at ...
  1. #1
    SC2150's Avatar
    SC2150 is offline Cadillac Owners Connoisseur
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    ATS Crankcase evac/oil separating system

    ATS Crankcase evac/oil separating system
    The RX*system*for the 2.0 Turbo*ATS.

    Here is what we found.

    The OEM*system*does NO evacuation at idle and low RPM's, it relies on crankcase pressure to force vapors out and into the clean side (fresh) of the PCV*system*into the main intake air bridge/tube. It then uses for the dirty side(foul) the suction from the turbo inlet for evacuation at that time, and pulls in oil laden mist through it as well, so the OEM*system*is lacking to say the least.

    Here is how the RX*system*works:

    Can bracket mounts to the front of the engine in blank pre-drilled/tapped hole:



    Dirty side line attaches to the PCV valve (yes, they have a valve again vs the fixed orifice that caused issues):



    and it runs to the inlet side of the turbo:

    Dirty side plastic line is slit at the joint to the metal line and then with dipstick pulled and air box off, it will pivot and face the oil separator:


    Plastic crimp is cut off the end so the included hose can slide firmly over the factory hard plastic line. This will connect to the center fitting on the RX can, with no check valve:


    The metal tube will then connect to supplied line to one of the outer fittings on the RX can WITH checkvalve, arrow pointing flow away from the can:



    The clean-side runs from the air intake tube to a T where it then connects to the front and rear of the passenger side of the cam/valve cover:


    This is removed completely, and the 2 included vacuum caps are placed over each open barb on the cam cover that the T'd fresh line was connected to:



    Note the oil saturated in these lines that was being drawn directly into the intake tube and turbo:


    That takes care of the evacuation and oil separation while in boost operation, now locate the hard plastic tube that comes from the intake manifold to the evap solenoid located on top front left of the cam cover, and cut app 3" out of this line where the include T will attache. Push the includes hose up over the plastic line firmly:


    This will allow a line from the second outlet on the RX can to be attached, with inline checkvalve arrow directing flow away from the can (NOTE! Checkvalves are in the outer fittings and only flow away from the can):


    This now provides evacuation during idles and non-boost operation, separating and trapping the oil mist/vapors along with water in the winter months, keeping it out of the intake air charge. This also provides far more evacuation than the OEM*system, and even pulls vacuum on the crankcase at non-boost operation more effectively removing the damaging combustion by-products from the crankcase.

    Now, the clean (fresh) side. This is one of the main pathways for oil ingestion, and we remove the clean line completely, capping the barbs as noted above, and replace the OEM oil fill cap with the RX cleanside separator. The barb on the cleanside separator them has a hose run to the barb the OEM line did attache to providing 100% MAF metered air, and trapping any oil that would be entering during full boost operation.

    System*remains closed so (aside from CA as we have no CARB cert yet) it is 50 state in compliance with emission regulations, catches, separates, and traps the oil from ingestion, and removes the restrictions and provides far improved evacuation WITHOUT messing up fuel trims or the tune.

    This*system*is available direct:*www.RevXtreme.com, by phone: 941-721-1826 for $299 plus $99 for the cleanside separator, and $15 S&H or from any of the RX dealers.

    And color plus polished or matte black (shown here). Simple install, easy fitment, and looks like it belongs there.
    RX Performance Products/RevXtreme.com 941-721-1826

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  3. #2
    ontogenesis is offline Cadillac Owners Fanatic
    Automobile(s): 2012 SRX 3.6, 2013 ATS 2.0T
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    There's no ATS option on the site...

  4. #3
    vseries's Avatar
    vseries is offline Cadillac Owners Fanatic
    Automobile(s): 2009 CTS-V , 2013 ATS Turbo
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    Re: ATS Crankcase evac/oil separating system

    Quote Originally Posted by ontogenesis View Post
    There's no ATS option on the site...
    Give Tracy a call at 941-721-1826 , he can give you all the details on the catch can/oil separator for the 2.0 ATS

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