ok what if the pcv valve was left in the intake manifold with nothing connected to it? just the pcv valve releasing the vapors. how would that work?

 

get a see through plastic fuel filter and hook one end up to the pvc valve and the other to the pre-turbo pipe

 

remind us again how the exhaust creates a vac.

 

Same here. all I did was replace it with a new valve and the stock hose is hooked up. I replaced the breather hose with a breather filter. So far no probs.

The high flow of the exhaust will create a vacuum due to the piping size. The flow through the large diameter exhaust will pull a vacuum on the small diameter of hose/piping. Its the same concept of how cleaning solution gets VACUUMED in a pressure washer, or air vacuum brake bleeder. Even a dumptube off a wastegate will have some small amount of vacuum on it if it is connected to the exhaust.

Large pipe with flow will always pull a vacuum on a smaller diameter pipe t'd into it.

 

if you're pcv valve isn't venting all the time, it could ---- up your rings after a while. when your car's in boost
the pcv isn't open, it's shut tight and no vapors at all can get out of the crankcase. while you're in boost your engine is spinning super fast, way faster than stock. even though it's still spinning at let's say 6000rpm, it got to 6000rpm twice as fast and created double the amount of vapors, which puts strain on the piston rings cause the piston is sucking and pushing down vapors below it. worse case scenerio is to leave the pcv hollowed out and nothing connected to it for vacuume, atleast the gases in the crankcase can creep out, but if the pcv is shut, then that's asking for trouble cause the crankcase is being pressurized everytime your car goes into boost.

 

simple solution... unplug the bitch and dont worry about it

 

Your exhaust is pressurized, right? And in order for there to be a pressure there must be a vaccum, right? You mount the nipple at an angle in the exhaust, so the pressure from the exhaust flowing outwards pulls a vaccum from the motor. If you don't mount the nipple in the exhaust right it won't work right.


Did that remind you good enough or should I type it again in pretty colors and prictures?