Breathers
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Joined: Nov 2003
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ok grant. that is wrong. sorry. theres no reason fresh air needs to get into the valve cover.
breather are used to replace PCV valves or in the LT1's case, the breather tube. IMO replacing the passenger side breather with a filter makes no sense. you still have the PCV on the drivers side.
PCV systems recycle the blow off and all the crankcase vapors back into the engine, into the intake. the point of a breather filter is to release the crankcase vapors into the atmosphere rather than the intake, keeping the intake charge cleaner.
well this is obviously horrible for the emissions and crap, and i dont see any gain nor purpose whatsoever, so might as well save some money.
breather are used to replace PCV valves or in the LT1's case, the breather tube. IMO replacing the passenger side breather with a filter makes no sense. you still have the PCV on the drivers side.
PCV systems recycle the blow off and all the crankcase vapors back into the engine, into the intake. the point of a breather filter is to release the crankcase vapors into the atmosphere rather than the intake, keeping the intake charge cleaner.
well this is obviously horrible for the emissions and crap, and i dont see any gain nor purpose whatsoever, so might as well save some money.
GTcars - Post God !
Joined: Nov 2003
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From: Valencia, CA
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yeah thats cuz most engines have a breather tube that goes from the valve cover to the intake. its recycling the crankcase vapors into the intake.
by putting the breather filter on it "keeps the intake clean". a ricer mod IMO.
by putting the breather filter on it "keeps the intake clean". a ricer mod IMO.
~~ Hardcore Newb ~~
Joined: Jun 2005
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Originally Posted by paarman97maro
I see... Howcome I see some of them on valve covers though? Ive seen that quite a bit.
Thread Starter
GTcars - Post God !
Joined: Apr 2005
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From: Holmen, WI
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Originally Posted by digiphaze
Probably guys with turbos/SCs. They need to plug their PCV hole so that the preasurized air doesn't preasurize the crank case. Then the valve cover breather takes the place of the pcv. Anyhow, thats how I understand it.
