why do people put the breather filter on the valve cover, is there some sort of gain from it?
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breather filter
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The idea is so that you dont have the hose going from the valve cover to the intake. Then you have oil in your intake which is just more crap in your manifold. Also it looks cool.No longer working on the cb. To much time and money has been put into it. Check my for sale thread where the whole car will be parted out.
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There's not really a gain BUT it will keep your t/b and IM cleaner. It's usu. used to replace the valve cover breather line that goes to the intake pipe. If you've noticed, it leaves a coating of oil on the t/b and IM. So, I used the breather to rid of the breather line and also put an oil catch can on the PCV line (check out the DIY section), then you will be oil vapor free
Dan
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IMO, those breather filters are for show.
They will eventually be covered in oil, or oil vapor deposits...
The crankcase, or valve cover holds extreme pressure...that filter really collects the oil vapor and the air is then emmited into the engine bay.
Those oil catch cans are a better idea...on ebay for like $30.USD...at least that has a return that goes into the catch can, then the cleaned air circulates back into the intake...
1990 Accord Lx F22a1(Daily) SOLD - will be missed
1990 Prelude Si B21a1 (Fun car!)
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Originally posted by xfactortype1oh and expect your hyrocarbons to go up!..plus a nice film of oil in your engine bay. i honestly dont care for the *** filter. get an oil catch can if your worried.
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To verfiy. you dont use the breather filter instead of the pcv system, then you use a catch can. the filter you use is just for the hose that goes to the intake pipe. Really not enough oil to make your car look like a mess but enough to make you tb look like crap. I have been running breathers for a while and they stayed perfectly clean. Only downside is they do have a little hissing sound come out from them.No longer working on the cb. To much time and money has been put into it. Check my for sale thread where the whole car will be parted out.
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Originally posted by quakerjoei would think that there might be a slight drop in intake air temp...
The air direction is *away* from the intake...the stock hose is just a source of filtered air for the PCV system2003 Maxima SE Titanium Edition
Polished Titanium ext, heated black leather int, heated leather steering wheel, HIDs, 255bhp, 6 speed, 15% tint.
1993 Suzuki GSX1100F 136bhp
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Originally posted by SteveBWhy?
The air direction is *away* from the intake...the stock hose is just a source of filtered air for the PCV system
Well, I didn't want to run 2 catch cans, a catch can on the VC breather line isn't really imperative compared to a catch can on the PCV. Using a VC breather is just another way to rid of oil vapors and use 1 catch can instead of 2. I keep mine very clean, which some people neglect to do sometimes!Last edited by Granite CB7; 04-19-2006, 05:23 PM.
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