Deleting the Crankcase vent?

Mitco39

Just looking for your thoughts on this, maybe someone who had the valve covers off can chime in. If you look there is a PCV system as illustrated by hose 1 and hose 13. These take the crankcase gasses and route them into the intake via the PCV Valve (item 3).

But now if you look at lines 6 and 14 they appear to also run from the crankcase to each of the intake tubes, this time with no valving at all.



With Boosted Performance's kit small filters are placed where the hose would connect to the stock intake letting it vent to atmosphere.



But why is this even needed if you have the PCV system as shown by lines 1 and 13? Could one just not block these lines and let the PCV valve take care of the crankcase gasses?

I am curious if maybe there is another reason for these valves and a picture of the underside of the valve covers would provide the answer. Or maybe someone has done this already?

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