Results with PCV set ups on OEM turbo

Discussion in 'Mazdaspeed 3/6 Engine' started by The_big_dill, Jan 11, 2021.

Watchers:
4 users.
  1. The_big_dill

    The_big_dill Greenie Member

    Joined:
    Jun 11, 2020
    Posts:
    142
    Trophy Points:
    28
    Location:
    Aurora, ON. Canada
    Ratings:
    +49 / -4
    It seems like there are a lot of opinions on what is sufficient for a PCV system, and a lot of people based that on what has worked for them.

    Blowing oil through my dip stick is a great way to rust proof my engine bay, but I am sick of lubricating my accessory belt... So I would like to hear some opinions.

    But more importantly, if the oil is coming up the dipstick, I can't imagine what the turbo is putting up with on the oil drain line.

    Main Contributing factors:
    - Engine rebuilt 1 year ago (40K km): Block was hot tanked to clean.
    - Radium PCV plate installed with 1 mishimoto catch can and check valve. OEM new PCV valve retained in the loop.
    - OEM style turbo (improved design with better seals, dont remember company name), pushing up to 19.5PSI.
    - Hot weather and heat soaked engine + WOT to redline are the easiest way to recreate this condition.

    I may do the mod to my valve cover that JohnnyTightlips has a write up on, but clearance is tight with a TMIC.

    Given the above conditions (and mod list below), do you believe I need to upgrade my PCV system further or look into a problem with my system?

    Your opinions are appreciated!

    Phil.
     
  2. Sho

    Sho Gold Member

    Joined:
    Feb 10, 2016
    Posts:
    1,090
    Trophy Points:
    113
    Location:
    Akron, OH
    Ratings:
    +2,191 / -0
    Tbh. On k04 power, if youre pushing oil out of the dipstick tube, you have an engine issue
     
    Sho, via a mobile device, Jan 11, 2021
    #2
    • Like Like x 6
  3. anthony

    anthony Greenie Member

    Joined:
    Apr 28, 2016
    Posts:
    173
    Trophy Points:
    43
    Location:
    az
    Ratings:
    +152 / -2
    @Sho coming in hot with the "fuck your dreams" haha
     
    • Like Like x 3
  4. The_big_dill

    The_big_dill Greenie Member

    Joined:
    Jun 11, 2020
    Posts:
    142
    Trophy Points:
    28
    Location:
    Aurora, ON. Canada
    Ratings:
    +49 / -4
    Thanks for the reply.

    Damond motorsports blow-by article has some good content and have seen recommendations for catch cans on there, even with the stock turbo. All other advice was a wash

    How would one go about diagnosing this concern? Could there be clogging in the PCV channels inside the block? I will be pulling my

    And more importantly: If I have a functioning check valve to prevent boost from entering the crankcase through the PCV system, does it mean its getting into the crankcase through the rings? Could it still be true with good compression numbers?
     
  5. Easter Bunny

    Easter Bunny Professional Engineer Platinum Member

    Joined:
    Feb 11, 2016
    Posts:
    1,358
    Trophy Points:
    113
    Location:
    Earth
    Ratings:
    +1,934 / -8
    You need to investigate the whole CV system as there is likely an issue.

    The answer to your question is that yes the pressure is coming from the cylinder and getting past the rings
     
    Easter Bunny, via a mobile device, Jan 12, 2021
    #5
Loading...

Share This Page

Users Viewing Thread (Users: 0, Guests: 0)