On an 04 you'll get a CEL quick as shit!

 

I bet it's because I've only seen guys use one filter instead of 2. See I'm thinking if the pcv hose on the intake manifold is still pulling vacuum from the intake side of the valve cover, it will indefinitely set a lean code because of the single air filter on the exhaust cam side of the valve cover. If there's two filters (one on both sides of the valvecover) it won't pull a vacuum on the crankcase anymore and just be vented to atmosphere. This may cure the lean code for the guys that run these filters.

 

I drove around for a few months without anything going into it other than dirty outside air cus the hose I had was shit and it wasn't wide enough, I fixed it now but Never got a cel.

 

just dont fuck with it and be stupid. leave it as is. gm designed it work the way its plumbed.

 

but I'm sure GM didn't design the k&n intake that I have.......:shrug:

edit: and it's just my nature to fuck with things! :lol:

 

thats a good question

i'm doing away with mine altogether and using 2 breather filters, when the turbo spools it'll have boost pressure going into to crankcase, not a good thing

i did notice when i pulled my intake manifold the inside was COATED with oil, like to the point is was almost dripping out, intake ports on the head were also coated with oil as well..

i'm sure doing away with PCV can be have some harmful effects on the oil from the blow by, but i'd think if you change your oil on a regular basis it would be alright :shrug:

it's a good thing i don't have emissions testing here :lol:

 

good thing I have a while before I need to find a shop that will just give me a pass on the visual inspection. I'm sure mine wouldn't have a problem passing one right now.......:ugh:

I don't think there'd be adverse effects on the oil if you do the dual filter mod though. I would run a vacuum pump separate from the intake on my engine if it was a fully built NA race engine. I'd like to know how much vacuum my engine actually pulls on the crank case so I can see if doing this filter mod would really have any adverse effects on my NA engine. I guess I'm gonna have to get a vacuum/boost gauge a little earlier than I expected..... :lol:

 

I got a CEL within minutes when i first built my intake a couple years ago. I put a filter on the PCV and didnt plumb it into intake.

Needless to say, i fixed it the next day and havnt had an issue since.

I think its just of a waste of time. Some simple B12 every once in awhile and your done.

 

Now on my S10 V8, i have a crankcase evacuation setup. Simple ports get welded into the header collectors and hoses run from them up to each valve cover breather.

 

well do us all a favor and post pics of your setups, because its something I'm thinking about as well!

 

I'm not saying it can't be made to work in some way, I'm just saying that it was designed a specific way for a reason (and this is why aftermarket companies versions of intakes are, essentially, the same as OEM)

This doesn't seem like it would be a power-adder mod to me. Is it just a convenience mod because you think it'll make you have to clean the TB less?

 

it would probably work but id rather clean the tb instead of having oil all over the motor :shrug:

 

you're right forrest.. more of a convenience mod.. the "gunk" from PCV can foul plugs, coat your TB and intake manifold with oil, ect ect.. if you know someone that has a catch can setup, take a look at it and all the shit that's in it, all that "shit" gets recirculated into your intake, and it's nasty

 

yeah I wouldn't have the catch can setup to recirculate back into the intake. I don't see why I couldn't just empty out the catch can when I check/change my oil.

 

yea you could. the only thing i might be worried about is insufficient venting

 

trust me I'd put a good size filter on both to where it wouldn't restrict the flow at all.

 

Overflow and Recovery Tanks - SummitRacing.com

 

I've been thinking about this for a while. Just because I'm tired of oil draining down the intake tube, as well as all of the shit inside the intake manifold, and the dirty TB.

 

I think this will be my next mod.

thanks scoober! :thumbup: I was looking at the filters but I think with just the catch can and hoses, it'll be a better/cleaner setup than just having two filters that might get oil all over the valve cover.

 

with the right setup this would be a nice mod. maybe ill check it out tommorow and figure out an idea with a catch can

 

that's the one from summit...the moroso one, i was thinking the same thing myself.. no one's done a catch can at all? Nuts.. I thought for sure it had been done.

 

Well I think it's due to all the bitches that own a 355 that say you shouldn't do anything more than intake and exhaust mods because they are afraid to take a risk and try something new! :shrug: That's what motivates me to do these kind of things so I can actually find out what works and what doesn't.

 

I hear you, sometimes you gotta be that dude that thinks out of the box, and who gives a fuck about what everyone says.. go for it bro, I've been thinking about it for awhile now.. might just go ahead and order one myself.

 

:high5:

 

ooooooh now thats a great idea, i like the vented catch can.. keep the oil vapor out of the engine bay.. i might have to pick one up!

 

damn I'm like the motivator or something! :rund:

 

well I've been wondering about this a lot, I've used them on every stock car I've ever driven, they do work great.. I just never found one because I didnt know the official name for them LOL until I saw this thread.. order already in!

<------dumbass.

 

:lmao: no worries man! I never thought of the catch can until I made this thread less than an hour ago! :wavey:

 

yeah why the fuck would you grossssssss the best thing though is you can take it off and clean it out with alcohol or simple green/water and not worry about all that SHIT recirculating back in the intake

 

question though... what could be put inside the can to help the vapor condense?? what's to keep it from blowing right out of the filter?

 

summit's backordered.. just ordered it from my other fav site.

Moroso Dry Sump Breather Tanks

 

here's another one for a few bucks cheaper.

Moroso Dry Sump Breather Tanks

 

thanks for the link scoober! just ordered one

 

So if I have this right, you would simply plug the exhaust side vent into this and be done correct? Plug up the hole on the intake tube and all would be good. Same take on the old breather on the covers but with oil collection added.

 

yes. You may MAY require a tune because you might get a lean code.. but it depends on your model if I'm not mistaken

correct

in my case im using a breather filter on the intake side of PCV and catch can on dirty side

use two lines, one from the intake side and one from the exhaust side, with a T fitting to vent both sides equally into the catch can so there is less flow restriction. There shouldn't be a lean code from this if I'm thinking correctly since the intake air and crankcase ventilation would be completely seperate with this setup compared to what it is now. You need to completely seal off the ports on the intake tube and manifold for this to work right if my ideology is right.