I have a Ford 302 crate motor and I do understand I need to ventilate the crankcase.
The question is it better to use a PCV valve or not? I read that providing a PCV valve promotes better crankcase ventilation from the neg pressure created in the manifold. On the down side it is not as attractive as just putting a ordinary valve cover vent in.
We do not need it for emission control where I live.
I gave up on PCV cause I autocross and couldn't keep it from sucking in oil mist during longer duration turns and fogging behind me. But, in general it's a good idea that doesn't really have any downsides performancewise. If you want to be semi emissions concious you could run a vent hose from the VC into the underside of the air cleaner.
FFR 5353K,351/400hp,TKO 500, 3-link w/3.08 and Truetrac, Koni DA coilovers front and rear,APE hardtop,Forte front and VPM rear swaybars
Location: Blackberry Township, IL (west of Geneva)
I used filtered breathers to a central canister (repro of the catch can from the 427 comp cars) mounted on the firewall. From there, there is an additional drain line that goes to a separate catch can. This way, the breathers are vented to the atmosphere, but I'm also ensuring that I don't dump condensation or oil on the tires (or the road).
Picked-up at FFR - 10/10/09
First start and go-kart - 9/19/12
"As smoke is blown away; so blow them away." Psalm 68:2
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