kagekun

ok i saw a engine with those little breathers (look like really tiny conic. cones) on those 2 spots, first what does that line going to the engine do and is it hurting something if the hose isnt connected and replaced with breathers?

yup thats my engine btw

marc93lx

What I've heard is it relieves positive crankcase pressure?? I don't know what the hell that is or how it helps though

Identity_X

IMO the breathers are garbage and will do more harm than good.

vtec-this

how do you figure? Isnt it just sucking in air? How could that hurt it? Don't they just help make things easier when adapting an aftermarket or custom intake?

Bruce95fmla

Does anyone have one? , and does it just make a mess of the damn valve cover?

vtec-this

ive got one because i had to put it on cause my new intake doesnt have a spot for the hose from the crankcase. It looks decent, though a bit ricy...Don't bother with it unless you get a new intake cause i really doesnt do anything.

UCSBgeek

Hasn't PCV been on cars as an emissions device since 1963 or so? I'd just leave it on, instead of dumping your unburned fuel on the ground

Protege91LX

If you are gonna leave the PCV lines connected I would recommend putting a fuel filter of some sort between the Intake and the valve cover, if you look on the inside of the hoses you will see lots of oil built up in there, that is from the PCV valve letting the air pressure out of the head, and when it does this a little bit of oil goes into the intake. The little breather dosent hurt anything, just lets the air into the atmosphere. And might have a little bit of an effect on your emissions.

BadAzz92DX

Some1 slap him for sayin that

jedwards242000

i have a breather it gets dirty pretty quick didn't notice any change in hp or tq but no change in engine performance

vtec-this

so what other idea would you have for the valve? Alot of intake systems require these filters since they dont have an adaption piece on the tube. Mazda engines tend to burn oil anways, a small amount coming out from the breather shouldnt be anything to worry about. So relax and slap your wife or something, leave me alone.....freaking tree hugger

Identity_X

It shouldn't be that hard to make the piece fit any aftermarket hose or pipe.

vtec-this

but why bother drilling a hole into your nice new intake when you can spend $5 and put a dumb breather on?