Breather for Oil Fill Cap
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2008-2013 Cadillac CTS Performance Mods Discussion, Breather for Oil Fill Cap in Cadillac CTS Second Generation Forum - 2008-2013; Tracey, In this pic I see a breather in place of the oil fill cap. Have you finally got the ...
  1. #1
    HurstGN is offline Cadillac Owners Enthusiast
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    Question Breather for Oil Fill Cap

    Tracey,
    In this pic I see a breather in place of the oil fill cap. Have you finally got the fitment correct that this now fits under the hood and doesn't hit the hood/hoodliner? I still have the one that came with my RX catchcan kit that hits the hood and prevents me from closing the hood with it on the oil fill tube.

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    Hammerhead100's Avatar
    Hammerhead100 is offline Cadillac Owners Fanatic
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    Re: Breather for Oil Fill Cap

    Was reading through this catch can thread the other day. Looks like you can send the tall one back for a short replacement.

    http://www.cadillacforums.com/forums...ml#post3188884

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    SC2150's Avatar
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    Re: Breather for Oil Fill Cap

    Yes, send it back with a detailed note and we will modify so it fits correctly.

    RX Performance Products/RevXtreme.com 941-721-1826

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    Quote Originally Posted by HurstGN View Post
    Tracey,
    In this pic I see a breather in place of the oil fill cap. Have you finally got the fitment correct that this now fits under the hood and doesn't hit the hood/hoodliner? I still have the one that came with my RX catchcan kit that hits the hood and prevents me from closing the hood with it on the oil fill tube.
    which cai is that?

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    SC2150's Avatar
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    Re: Breather for Oil Fill Cap

    In the picture on top? That's a CTS with our super charger system installed.
    RX Performance Products/RevXtreme.com 941-721-1826

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    Quote Originally Posted by SC2150 View Post
    In the picture on top? That's a CTS with our super charger system installed.
    any information about the intake pipe?
    it would fit my maggie,,

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    HurstGN is offline Cadillac Owners Enthusiast
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    Re: Breather for Oil Fill Cap

    Ok, I wasn't aware that was done. Mine is still in the box, was just waiting to have the new one available.
    Thanks

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    Re: Breather for Oil Fill Cap

    The intake part we designed and produced here....we also do one for the LY7 that is an enclosed CAI but not in production yet.
    RX Performance Products/RevXtreme.com 941-721-1826

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    SC,,

    am sold to your RX can but needed your advice for my particular setup,,
    i have a built 418 motor with tvs2300 blower pushing 15 psi,, my engine has no valley cover barb,, only a 3/8 barb on each valve cover,, no check valves,, only baffled,,

    what do you recommend for this setup in regards to crank case vent?

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    Re: Breather for Oil Fill Cap

    Use the drivers side valve covers rear barb to evacuate from running to the center of the RX can (Dual valve is the best option) (this gives far better complete crankcase evac compared to the valley barb that only evacs 2/3rds of the engine leaving the drivers side valve train stagnant) and remove the valve cover and look into the barb. The fixed orfice hole needs to be drilled to 1/8-1/4" to allows for no restriction to deal with the added crankcase pressure from FI.

    Then one of the main vacuum barbs on the TVS unit is used to pull for a vacuum source to one of the outlet valves on the RX can for evacuation during most operation. Secondary outlet valve on the RX can connects to the main intake air tube 2-4" upstream of the throttle body providing that extra evac when needed at WOT.

    Have updated all the RX systems with high quality 1/4 turn ball valve drains, and inline flow controlling checkvalves that are silent in operation, and AN fittings standard on the dual valve now:



    For the clean side (your filtered, metered fresh make up air) the 1LE style RX Billet cleanside separator maintains a closed system and prevents cleanside oil ingestion, yet keeps the entire system closed and the air 100% metered by the MAF. It has a cleanable coalescing element and replaces the oil fill cap similar to the standard breather kit. It will NOT fit under the hood on a V6, only the V8's:




    As always, cans, etc. in most any color you want no extra charge.

    www.RevXtreme.com or call 941-721-1826 to order.
    RX Performance Products/RevXtreme.com 941-721-1826

  12. #11
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    Quote Originally Posted by SC2150 View Post
    Use the drivers side valve covers rear barb to evacuate from running to the center of the RX can (Dual valve is the best option) (this gives far better complete crankcase evac compared to the valley barb that only evacs 2/3rds of the engine leaving the drivers side valve train stagnant) and remove the valve cover and look into the barb. The fixed orfice hole needs to be drilled to 1/8-1/4" to allows for no restriction to deal with the added crankcase pressure from FI.

    Then one of the main vacuum barbs on the TVS unit is used to pull for a vacuum source to one of the outlet valves on the RX can for evacuation during most operation. Secondary outlet valve on the RX can connects to the main intake air tube 2-4" upstream of the throttle body providing that extra evac when needed at WOT.

    Have updated all the RX systems with high quality 1/4 turn ball valve drains, and inline flow controlling checkvalves that are silent in operation, and AN fittings standard on the dual valve now:

    For the clean side (your filtered, metered fresh make up air) the 1LE style RX Billet cleanside separator maintains a closed system and prevents cleanside oil ingestion, yet keeps the entire system closed and the air 100% metered by the MAF. It has a cleanable coalescing element and replaces the oil fill cap similar to the standard breather kit. It will NOT fit under the hood on a V6, only the V8's:

    As always, cans, etc. in most any color you want no extra charge.

    www.RevXtreme.com or call 941-721-1826 to order.
    thanks a lot,,
    where does the cleanside tube connect to?
    any use of the passenger side cover barb?

  13. #12
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    Re: Breather for Oil Fill Cap

    To the main air intake tube that the pass side valve cover barb did run to. This prevents oil from entering through that tube upstream of the throttle body while still maintaining 100% metered air for tuning ease.
    RX Performance Products/RevXtreme.com 941-721-1826

  14. #13
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    Quote Originally Posted by SC2150 View Post
    To the main air intake tube that the pass side valve cover barb did run to. This prevents oil from entering through that tube upstream of the throttle body while still maintaining 100% metered air for tuning ease.
    breather cap and secondary can outlet will connect to main intake tube?
    should i have the passenger side cover barb plugged out?

  15. #14
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    Re: Breather for Oil Fill Cap

    Yes. It will need to be capped. Sorry I missed that part.

    RX Performance Products/RevXtreme.com 941-721-1826

  16. #15
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    Quote Originally Posted by SC2150 View Post
    Yes. It will need to be capped. Sorry I missed that part.

    do you recommend breather and secondary can outlet to be T'ed into intake pipe?
    given that my motor is built and may have a bit more clearance which can cause more crankcase pressure,, do you still see a 3/8 breathing system enough?

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