Could someone explain what exactally these are and if I should add one to my ride?
Also, what it that hole on the 2.0 Beta engine on the right that looks like something should be mounted or was.
Thanks,

Z?

 

Breather filters are for the either the PCV vent, or the normal Crankcase vent right next to it.

In general, they do a whole lot of not much. The crank case can breath just fine through the tube that leads to the intake. Replacing that tube with a filter will not gain you anything.

 

i doubt the produce any gain in hp or such but i do think they can prevent oil from getting into your intake manifold from that pvc tube.. when i added a breather filter i noticed my tube that i took off had an oily residue on it..

just my 2 cents

 

That oil normally get's stucked through the intake manifold and into the engine and burned. With a breather, it just coats the breather filter and eventually drips on your engine.

 

ahh i see wink either way it aint gonna do anything for ya except make a hassle for ya might look cool but now you have to plug the hole that the tube came off on the intake side smile.gif

 

Summit racing sells a catch-can breather filter for $30. It is basically a can with a drain stop in the bottom and a filter on top. It catches all the oil, instead of letting it drip when the filter gets saturated.

They are a must for some tracks. If you are running boost and fry a piston ring, you could pressurize the whole pan and crankcase which would spray oil out of the breather and could get it on the track. If you have a turbo, you don't really want the breather line going back to the intake, because instead of burning the oil vapors, they condense in your intercooler. Not fun.

For N/A mods, I'd say it's a wash. No HP, but your MAFS or CAI piping won't get oil all over it (it's amazing how much oil was in my first home-made CAI before I made the new one. nasty).

Here's a link to the product at summit:
http://store.summitracing.com/partdetail.asp?part=3971

Hope this helps,
ac

 

Definition: A means of controlling crankcase blowby emissions and removing moisture condensation from the crankcase to prolong oil life. See PCV valve.

another definition..

Definition: The Positive Crankcase Ventilation valve is an emissions control device that routes unburned crankcase blowby gases back into the intake manifold where they can be reburned. The PCV system is one of the oldest emission control devices, and also one of the most beneficial. Besides totally eliminating crankcase emissions as a source of air pollution, the constant recirculation of air through the crankcase helps remove moisture which otherwise would cause sludge to form. Thus the PCV valve extends the life of the oil and engine. The PCV valve requires little maintenance. The valve and filter should be replaced somewhere around 30,000 to 50,000 miles (see the vehicle owners manual for service intervals).

it is my opinion that the breather should not be used on a stock engine that is daily driven.

the pvc serves two purposes...

1. it recycles burned gas vapors that make their way into the valve cover area (cams area)..

2. removing those vapors prevents all kinds of nasty build up on the cam lobes that can cause sludge and accelerated corrosion of the materials.

[ March 23, 2002, 03:14 PM: Message edited by: FordFasteR ]