breather or pcv valve

esfan · Post by **esfan** » Sun Apr 19, 2009 8:20 pm

i heard someone said that a breather can do a better job than a pcv valve, because the major function of a pcv valve is to carry the crankcase gas back to throttle body and let the engine to reburn them to avoid pressure built. how about the breather? is that the same function except that it let the crankcase gas flow to the air (with filter). so does it make any differences? or just because people do not wanna pollute the environment so they prefer engine to reburn the gas...

Post by **racer12306** » Sun Apr 19, 2009 8:31 pm

The PCV is better because it maintains a vacuum on the system. This removes unwanted gases.

The engine will function better with the PCV.

OB · Post by OB » Sun Apr 19, 2009 9:08 pm

Don't remove the PCV valve, it's important.

A breather will not change performance any noticeable amount, if at all. Save your time and money.

nopiboy19 · Post by **nopiboy19** » Tue Apr 21, 2009 8:48 am

i took mine off!

Post by **occasional demons** » Tue Apr 21, 2009 9:55 am

Why?

So moisture can build up in your engine?

Let us know how it works out.

JeffM · Post by **JeffM** » Tue Apr 21, 2009 10:09 am

^^I think he has a breather on IIRC.

Just leave the PCV, I think the breathers are ugly.

Post by **occasional demons** » Tue Apr 21, 2009 10:14 am

Ahh, he didn't specify.

As long as the air inlet (the PCV valve being the outlet)for the VC runs into the air cleaner box, or CAI tube it should be good. You don't want unfiltered air going into the engine.

esfan · Post by **esfan** » Tue Apr 21, 2009 11:14 pm

thanks guys i got the point

Post by **racer12306** » Tue Apr 21, 2009 11:16 pm

nopiboy19 wrote:i took mine off!

You should put it back on

nopiboy19 · Post by **nopiboy19** » Wed Apr 22, 2009 11:50 pm

yea the breather does look rice

Post by **occasional demons** » Thu Apr 23, 2009 9:47 am

Those aftermarket make up filters are prolly better than that square POS they put in the air box. So they may look rice, but they also do have some redeeming qualiy.

nopiboy19 · Post by **nopiboy19** » Thu Apr 23, 2009 10:47 am

yea it only cost me $10.00 too.