I currently have a hose running from my valve cover vent to my short ram intake, but was wondering what advantages if any one of those lill breather filters would give theoretically (besides looking less tacky than a shiny blue hose)

I spent 20 minutes looking at this thread http://www.honda-tech.com/showthread.php?t=1469739 and still have no idea. any opinions, or layman explanations that would be easier to understand?

Would either one of these options really mess up my pcv system?

 

The breather tube allows air INTO the valve cover, not the other way. It is called a POSITIVE crankcase ventilation. Air is pulled into the valve cover (and heated by the coolant pipe it is attached to to prevent condensation in the valve cover) the air travels though the valve cover and though the bottom end and pulls the oil/exhaust vapours out of the block and through the PCV valve and gets burned. By blocking the valve cover breather line, you are preventing the PCV from venting those vapours inside the motor and this will cause your oil to get contaminated much quicker and you will see increased engine wear. By putting a filter on the valve cover, you are allowing ambient temperature air into the valve cover (because you are bypassing the coolant pre-heater) which will cause conensation in the valve cover and sludge buildup. This will shorten the life of your motor. thats the best i can find lol

 

You sure are thorough with your filtering. Never even knew there was an oil breather down there. Does that filter really do anything?

 

^ Read the link he posted.

I have a breather on my vc right now, but from reading the link you see that it is BAD for the engine in the LONG run, but honestly I wouldn't worry about it. The only harm that the cold air going into the hot valve cover is doing is creating moisture, and it isn't enough moisture to affect your car. And as long as you change your oil when needed and on time, you should have nothing to worry about. Breathers are really more of a bling factor, I have one since I am going to tuck my engine bay and the tubes welded are just more clutter. But you shouldn't have any problem slappin a breather on there!

 

Hmm... ...there is little to no difference between the air going into a filter on the valve cover than the air going into the intake's filter and then to the hose. It is quite silly to think otherwise. The only benefit, if any, is that you are recirculating to hot/oily air from the valve cover back in to the air intake. Instead that air is expelled into the engine bay in general.

 

If im not mistaken the VC does not "expel" air but instead air is pulled INTO the valve cover like supersize said. Personally my only issue is that I would be afraid of moisture getting sucked in and mixed with the oil. (Particularly for people who hose down their engine at the car wash.) Granted I dont know how well moisture would pass through the breather but at least I feel more secure with the hose knowing moisture would have to travel through your filter, intake tubing, then hose to make it all the way into your valve cover.

 

The vc pulls air in when the car is under high vacuum. The reason the air from the intake goes through the tube welded to a tube for coolant is to WARM the air. The hot coolan flowing next to the cold air coming in to the vc is heated up. Reason being, when you put cold air into a hot valve cover, it creates steam which is moisture. So the tube going from the intake, to the metal tubes, then to the valve cover is there for a reason. And as I said, bypassing the metal tubes and putting a breather on is bad since it is getting colder air into the hot valve cover, but it's not something to be super worried about. All I did was was buy a tube to run the coolant without using the tubes and put on the breather, problem solved, clutter gone. So to sum it up, the air should be warmed up before going into the hot vc.

 

ill just leave this here, problem solved im doing this to my teg,
http://cgi.ebay.com/ebaymotors/Unive...Q5fAccessories