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Evacuating the crankcase

Discussion in 'Turbo Tech Questions' started by JohnSpo1, Aug 1, 2021.

  1. JohnSpo1

    Joined:
    Feb 19, 2020
    I'm tossed on just how to evacuate the crankcase on my SBC build. I have the parts to do a evac through the exhaust, but I'm wondering if I should do a PVC and catch can instead. What are all your thoughts on these options, Pros/Cons?
     
    JohnSpo1, Aug 1, 2021
    #1

  2. B E N

    Joined:
    Nov 22, 2016
    If it is going to be a low mile vehicle or mostly track run the exhaust evac. If you are going to put miles on then PCV.
     
    B E N, Aug 1, 2021
    #2

  3. F4K

    Joined:
    Jan 7, 2020
    Use Factory PCV setup style for reliability and longevity (if you need longevity)

    Use a turbo PCV valve from a Toyota Supra (if you are turbo) not the OEM chevrolet stuff

    Any PCV will work if it can maintain a vacuum in the crankcase. Wet sump target is 1.5" to 3" Hg of vacuum , at all times. ALL TIMES. You should measure this at least once to ensure you hit this target range.
     
    F4K, Sep 17, 2021
    #3
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