PCV Questions.
Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,483
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From: Las Vegas Nevada
PCV Questions.
I am told this is a smog related thing, and I could block off the intake/TB ports and run non PCV breathers on my valve covers.
Smog is not a concern of mine. And I have a non PCV breather (no little port off of it) already, and would rather not replace it ($). Also another thing that will help clean my enigne compartment up and make it look how I want it to (I love the way our 65 engine bay looks, motor, alt, ps, no junk...)
Thanks for helping me out :)
Matt
Smog is not a concern of mine. And I have a non PCV breather (no little port off of it) already, and would rather not replace it ($). Also another thing that will help clean my enigne compartment up and make it look how I want it to (I love the way our 65 engine bay looks, motor, alt, ps, no junk...)
Thanks for helping me out :)
Matt
Le Mans Master
Joined: Jan 2000
Posts: 6,376
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From: Traverse City MI
Re: PCV Questions. (VetteRacer282)
I dont think they are fog related, more like air circulation in the crankcase related.
As long as you have something there to provide a clean source of air you are probably fine.
As long as you have something there to provide a clean source of air you are probably fine.
Pro
Joined: Dec 2000
Posts: 700
Likes: 20
From: Derby Kansas
Re: PCV Questions. (VetteRacer282)
The PCV doesn't cost you any power. Personally, I think it's one of the few emission devices that may actually be a benefir to your engine as it helps burn some of the cr@p out of your crank-case. If you really wanted to you could run breathers. Just be prepared to eventually have a dirtier engine compartment from oil mist/vapors making it past the breather filters. Maybe not noticeable at first, but over time it will add up.
Le Mans Master
Joined: Oct 1999
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From: Sachse Texas
Cruise-In I Veteran
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Re: PCV Questions. (Ron78Z&85Vette)
It releives possitive crank case ventilation. This is a good thing and will not cost you power. Some may loose a little oil over time due to it getting ingested in the intake. I never thought it was a smog related item.
I did bypass mine once and ran breathers. The breathers could not keep up and would seep oil onto the headers. I reinstated the PCV and am much happier now.
I did bypass mine once and ran breathers. The breathers could not keep up and would seep oil onto the headers. I reinstated the PCV and am much happier now.
Pro
Joined: Dec 2001
Posts: 715
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From: NYC NY
Re: PCV Questions. (Ron78Z&85Vette)
Part of the intention is to keep from venting gas vapors into the atmosphere, but your car will be fine going with breathers. Areas around breathers do tend to get nasty though.
Pro
Joined: Jan 2001
Posts: 681
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From: Newton (Wichita Area) Kansas
Re: PCV Questions. (Vette92)
I've had the exact same experience as Vette92. I went back to PCV. It's nice to have a vacuum in the crankcase rather than atmospheric pressure. That oughta help the engine's efficiency in some way.
Just happens to be one of the rare pieces of emissions equipment that is uncomplicated, easy to plumb, lowers HC emissions, and quite possibly makes more power.
A lot of drag racers run a hose from the valvecover to the exhaust collector. No emissions benefit but perhaps it works better than engine vacuum. I think NHRA Pro Stock engines usually have high volume smog pumps that are even better than using the exhaust.
Just happens to be one of the rare pieces of emissions equipment that is uncomplicated, easy to plumb, lowers HC emissions, and quite possibly makes more power.
A lot of drag racers run a hose from the valvecover to the exhaust collector. No emissions benefit but perhaps it works better than engine vacuum. I think NHRA Pro Stock engines usually have high volume smog pumps that are even better than using the exhaust.
