i went to AZ, and Adv. Auto, and found breather filters, but they are all too small to fit onto the crankcase. for those of you who have them, where do you get them from?

 

i got mine from obx, the same one that fit hondas should fit ours

 

OBX, as in off their website?

 

nope as in ebay

 

is 12 mm the correct size ?

 

i dont think so, because i think 12mm is what i have and it doesnt fit.

 

i heard they suck. i saw some at pepboys and yeh, they were too small.
i heard they lower ur rpm idle

 

really? i've heard they do allow the crankcase to breathe better. never heard about the lower rpm idle. it's not that big of a deal to me, i just figured it's something else to have under the hood. not like im looking to gain 10 hp

 

well i was thinking about it too, because i dont like the long vacuum hose that goes across the engine bay with the injen intake. thinking about a breather filter to do away with it. eckohb let me know when you locate one that works for us. i looked around on at some K&N breather filters., thats what we need to make sure it isnt cheap junk. still not sure on a size ?

 

anyone that has one have any pics ive never seen a breather filter on a max??

 

if u get the breather filter what would u do about the empty hole left behind on ur intake? i would rather keep the hose then fill a hole or something

 

Just so people know the breather is on the front valve cover. The other hose going to the intake is for the idle control valve and has to be metered by the MAF.

I got an APC breather from Advanced Auto. It wasnt very big but I crammed it on there. I also had a Ractive one, again not sure on the size. 12mm is rather small since that hose is about 1/2".

You can get a smaller one to fit by using a small section of the stock hose and putting a brass barb that reduces the size.

As you can see I used the whole stock hose because I didnt want to cut it. I bought the barb from Homedepot.

 

i tried jamming the thing on there, it wouldnt go on there to save my life. i dont understand what you mean by brass barb? the second pic still has the stock hose connected...im confused...can you explain a little more? the one i have is an APC one from Adv. Auto too.

 

look at the end of the stock hose. See the breather? I used a barb to join the 2 hoses of differnt sizes.
I used the full stock hose since I didnt want to cut it.

 

oh ok, i get what youre saying. but how did you get the first one to fit on the crankcase? and why use the breather with the stock hose where you have it?

 

I also have the breather filter from Advanced Auto I think its the APC one. I put it both on the crankcase and the intake. For the one on the intake I had to take off the rubber part and slip it onto the intake, it fit on snug so it wont fall off. I dont know if it affects anything in a negative way but it doesnt look too bad. This is an old pic and I dont have the red loom anymore but I still have breather filters on both locations (CC and Intake)

 

exactly what happend when i put mine on my 97, my car didn't idle right, then i took it off everything was fine

 

My car idles at 750RPM's, so far no problems. But sometimes while at idle and on "D" my car shakes a little like it were about to stall, but I dont think that it has anything to do with the breather filters. It just started happening and i've had the filters for awhile.

 

lol those look like tmaxx kn filters..

 

this is insane! all you guys have the same one that i have, but it wont fit on my crankcase! fitting it on the intake would be no problem, but the crankcase it just wont go on. Sentinal, nice choice on accenting your engine bay. i have the red loom as well, but where did you get yours from? yours looks like a rubbery material

 

eckonhb,
I considered a breather filter for my SE but a think the removal a negative pressure from the valve cover is a mistake. The ERG vacuum is there for a reason. If I am looking at it correctly JSutter's second pic is an in-line filter using the stock hose - the best alternative I think. The goal here is to filter exhaust blow-by gases before they are sucked back into the throttle body.
If you are just looking to put a cool looking filter on your valve cover be prepared for sh*t idle response. Others have used oil catch cans in-line with this hose - mostly racers.

 

thats not a good idea. Why you ask? because more air is being drawn into the engine than what the MAF reads. you are running lean now.

 

I had to get a breather filter because some idiot (me) broke the plastic piece off the intake. I couldn't find one that would fit so, I pulled the rubber boot out of the bottom of the filter and put the old hose into the base of the filter. It doesn't look that great, but it works.

 

I dont know why that one fit but it did. I did have to force it a bit.

I made that mid pipe and I didnt want the oil entering the intake so I installed a breather.

As you can see, its on the end of the stock hose. This breather did not fit the valve cover so it put it there so I could still use it, and so I could go back and use my stock intake.


It sounds like those of you with idle problems installed it on the IACV. thats a nono.

 

lol a breather on the iacv? btw isnt oil suppose to come out the breather or is that when you are boosted? like an oil catch pan?

 

ok guys check this out... i too had idle probs. related with this issue. before i read this thread i couldnt figure out what was causing my idle to be so low and messy. i would blame it on my highflow cat but now i know it is the breather filter. i mounted my breather filter onto a piece i cut off from the stock intake hose(only way i could get it to mount) my idle and performance went to s**t. i have yet to figure out what is causing my performance loss but i will replace the hose that connects my injen intake to the crankcase and see if this fixes the problems. my car was running better without the damn breather filter. like mentioned before the hose is there for a reason. and i doubt anymembers put their breathers on the iacv because in that case the car will turn off in idle since there is no vacuum effect. im more than positive now that our cars need that hose tohave the best performance.

 

after reading through the post here I have no idea if we should use a breather filter or not ? even if i did use one i still dont know what or where you buy to plug up the extra intake opening.

im pretty sure this k&N breather filter will work:

K & N Rubber Base Crankcase Filters

Flange ID: 5/8"
Filter Diameter: 2 "
Filter Height: 1-1/2"
Rubber Top Part Number:
Chrome Top Part Number: 62-1340

Link: http://www.knfilters.com/images/cvfrb.jpg