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Valve Covers and Crankcase Pressure

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Old 04-11-2012, 04:20 PM
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Default Valve Covers and Crankcase Pressure

Does having valve cover that just have the cap on one side bad for crankcase ventilation/pressure? Also what do you do with the PCV lines from the driver side valve cover and the top of the pass side cover?
Old 04-16-2012, 09:53 AM
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I guess what I am trying to ask is... Can you run valve covers with just one breather hole on one side? If so is a catch can needed?? Or can the PCV system be deleted??

Any help would be appreciated!!!
Old 04-16-2012, 10:26 AM
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Yes you can run just one hose off one valve cover and be fine up to I think 450-500 HP, after that you want to run one off each valve cover or the valley pan cover.

A catch can is always a great idea...keeps oil mist off the track and out of your intake.
Old 04-16-2012, 03:03 PM
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thanks man, do they have to circulate back into the intake or can you run a breather filter on them?
Old 04-17-2012, 07:34 AM
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Search catch can routing in the external section. Tons of info there.




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