you can by them at autozone or checkers for like $3.00 for a whole kit, theay are exactly the same

 

Write up would be awesome. This would decrease the clutter on my new 408!

 

I would have one on the drivers side as well IMO since some people with one breather were having problems with oil leaking out of their valve cover seals and oil pan seal.

 

Where are these people? It would be nearly impossible to create enough positive pressure to force oil out of any seals.

 

Forged my engine and replaced it with a LS6 PCV system ... valley cover and all ... of course, that was not an option in the poll, so, I said scrap it and go with the breather.

 

if u remove anything how are u creating vacuum in the crankcase? isnt that part of the reason its on there?

 

There isn't much vacum in the stock PCV system. the PCV valve actually closes when your motor is producing vacum. when there is less or no vacum (ie: WOT) the valve opens to let the crankcase pressure into the motor.
If there was full vacum going thru your PCV you would probably go thru a quart a day.

 

While I agree with most of what you said, I think you have it backwards. The pcv valve is open under vaccum conditions and closed when there is no vaccum (WOT). When you have the pedal to the metal there is no crank case pressure being evacuated.

 

well is the motor getting a vacuum from somewhere else then? seems to me that for an everyday car that doesnt run wot most of its life that this could cause premature seal failure. please correct me if im wrong-im trying to learn.

 

Actually my furry little friend, duruing WOT is when there is the MOST crankcase pressure.
Ever see a car on the dyno with a bad front main seal? The higher the rpm's the more oil it pukes out of the bad seal.

 

please rephrase your question.

 

So...how about that writeup...

 

This is true, but you missed the point. The pcv valve is only open during vaccum situations. Vaccum does not occure under wot. Do you see where I am leading with this, "my furry little friend?"

 

 

True: vacum does not occur at WOT
Thats the only part you got right.
If the valve is closed at WOT (while the engine is producing the most crank case pressure) where does that pressure go? It blows out the seals if your right.

 

Not unless you have an extreme amount of blowby. Most short WOT burts won't create enough crank case pressure to do any damage regardless. Think about it. Vaccum is what opens the valve. When there is no vaccum the valve is closed.

EDIT: Short summary: The stock LS1 pcv system does not evacuate crank case pressure under WOT.

 

BOOYAKAH!
http://www.advanceautoparts.com/engl...0050101pv.html

 

Just Google "how a PCV valve works"

 

If the engine is able to create enough crank case pressure the ball will be pushed open, but even then, there is not much that can be evacuated through that tiny opening. GM has a tsb for excessive oil usage regarding the pcv valve. It specifically states that this problem is prevelant with most manual transmission cars that use the engine to slow the car down after high rpm use, aka a ton of vaccum being created. I shouldn't have said the stock pcv system doesn't evacuate pressure under WOT. It does, just not enough IMO. Either way, I like the breather idea better. Eliminate oil consumption and vent more crank case pressure.

 

vacuum occurs during normal everyday driving right. so where is it going to go if its not going thru the pcv? i like the idea however it just seems as though this would be bad for the seals on my motor.