Small filter on oil cap?
Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
Ah, no......because my setup works, and more importantly, it's actually needed, not just for show...
Please show the empirical data the backs your claim. You, like most, do what they "think" is needed, but really have no verification for your actions. I am sure you have no idea what the demands of your engine are, and what is specifically required to satisfy those needs. That being said, your ventilation system is probably performing just fine, but I also don't believe that you planned it based on needs. The ventilation system on your engine would probably handle increased needs, yes? Well, if that's the case, then you too have a system that is just for show. But who cares, having a higher capablility is better than not enough, right? So, the conclusion I have come to, is that having a breather on my engine is not wrong, and therefore is right. Is it necassary, who knows, but at least the ventilating capability is there should the engine need it.
Really? And without a means to vent, where does said pressure go ? Out the oil seals? Perhaps you are too young to remember GM engines with vented oil caps on the valve covers....."decades ago"....
My statement is true. Initially engines did not have crankcase ventilation systems of any sort. Pressure was relieved through the seals, etc. The engines then, just as they would now, will run without a ventilation system. They are not needed. Pistons are needed, valves are needed, but ventilation systems are not.
Please show the empirical data the backs your claim. You, like most, do what they "think" is needed, but really have no verification for your actions. I am sure you have no idea what the demands of your engine are, and what is specifically required to satisfy those needs. That being said, your ventilation system is probably performing just fine, but I also don't believe that you planned it based on needs. The ventilation system on your engine would probably handle increased needs, yes? Well, if that's the case, then you too have a system that is just for show. But who cares, having a higher capablility is better than not enough, right? So, the conclusion I have come to, is that having a breather on my engine is not wrong, and therefore is right. Is it necassary, who knows, but at least the ventilating capability is there should the engine need it.
Really? And without a means to vent, where does said pressure go ? Out the oil seals?
Perhaps you are too young to remember GM engines with vented oil caps on the valve covers....."decades ago"....My statement is true. Initially engines did not have crankcase ventilation systems of any sort. Pressure was relieved through the seals, etc. The engines then, just as they would now, will run without a ventilation system. They are not needed. Pistons are needed, valves are needed, but ventilation systems are not.
So far, you have failed to put me in my place and only appear to be taking these comments too personally. Also, please try to understand the context in which statements are made. Never did I suggest that having no ventilation for crankcase pressure was ideal or beneficial. You failed to comprehend what was written.
Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
For those interested.
With the stock PCV system and stock motor set-up the dipstick would pop up out of the tube due to pressure in the crankcase. This would only happen after high rpm runs.
After installing the breather I have not had this issue.
Additionally, oil consumption between oil changes has reduced by a small, but noticable amount.
disclaimer: your results may vary, based on your own engine set-up and driving habits
With the stock PCV system and stock motor set-up the dipstick would pop up out of the tube due to pressure in the crankcase. This would only happen after high rpm runs.
After installing the breather I have not had this issue.
Additionally, oil consumption between oil changes has reduced by a small, but noticable amount.
disclaimer: your results may vary, based on your own engine set-up and driving habits
Thread Starter
Supporting Vendor
Joined: Jul 2010
Posts: 8,541
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From: Republic of Texas
If i understand correctly, I have 2 options:
a) breather setup will vent crankcase pressure during boost that would otherwise be too much for the PCV valve
b) Oil catch can setup w/ breather to catch the extra oil instead of letting it vent into the air.
c) Vaccum pump: not sure what kind or where this goes, but i think it aides the PCV system.
a) breather setup will vent crankcase pressure during boost that would otherwise be too much for the PCV valve
b) Oil catch can setup w/ breather to catch the extra oil instead of letting it vent into the air.
c) Vaccum pump: not sure what kind or where this goes, but i think it aides the PCV system.
Tech Contributor
Joined: Jan 2007
Posts: 19,353
Likes: 1,125
From: Dyer, IN
Please show the empirical data the backs your claim. You, like most, do what they "think" is needed, but really have no verification for your actions. I am sure you have no idea what the demands of your engine are, and what is specifically required to satisfy those needs.
You might have something there. Some of these topics are just too advanced for someone of my meager intellect. I fail to fully comprehend the complexities of mechanical assemblies, like internal combustion engines.......and when it comes to that electrical stuff....hell......I'm just lost. I'm glad there are forum members like you, to make sense of it all......for the rest of us.
Last edited by lucky131969; Dec 16, 2010 at 03:53 PM.
Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
If i understand correctly, I have 2 options:
a) breather setup will vent crankcase pressure during boost that would otherwise be too much for the PCV valve Yes
b) Oil catch can setup w/ breather to catch the extra oil instead of letting it vent into the air. Not exactly. The breather means that it will vent to the atmosphere. The catch can simply means that the oil vapor that normally goes into the intake manifold will instead be trapped in the catch can. This set-up will give vacuum to draw out crankcase pressure, will allow excess to vent through breather, and allow the intake to remain cleaner. This is what many people have set-up
c) Vaccum pump: not sure what kind or where this goes, but i think it aides the PCV system. it replaces the traditional PCV system. some people use the A.I.R. pump as a vacuum pump. It applies vacuum to the crankcase much like the intake manifold vacuum does with the stock PCV system, but it can handle more vacuum and volume. Great for boosted and high rpm applications
a) breather setup will vent crankcase pressure during boost that would otherwise be too much for the PCV valve Yes
b) Oil catch can setup w/ breather to catch the extra oil instead of letting it vent into the air. Not exactly. The breather means that it will vent to the atmosphere. The catch can simply means that the oil vapor that normally goes into the intake manifold will instead be trapped in the catch can. This set-up will give vacuum to draw out crankcase pressure, will allow excess to vent through breather, and allow the intake to remain cleaner. This is what many people have set-up
c) Vaccum pump: not sure what kind or where this goes, but i think it aides the PCV system. it replaces the traditional PCV system. some people use the A.I.R. pump as a vacuum pump. It applies vacuum to the crankcase much like the intake manifold vacuum does with the stock PCV system, but it can handle more vacuum and volume. Great for boosted and high rpm applications
Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
You pegged me. I am indeed a follower. I just do to my car, what everyone else is doing. I solicit the forum any time I have to make a decision on a new mod. All I know, is that shiny thing under my hood made the car faster....but to articulate the impact on the engine, or crankcase pressure.....forget about it.....way over my head.
You might have something there. Some of these topics are just too advanced for someone of my meager intellect. I fail to fully comprehend the complexities of mechanical assemblies, like internal combustion engines.......and when it comes to that electrical stuff....hell......I'm just lost. I'm glad there are forum members like you, to make sense of it all......for the rest of us.
You might have something there. Some of these topics are just too advanced for someone of my meager intellect. I fail to fully comprehend the complexities of mechanical assemblies, like internal combustion engines.......and when it comes to that electrical stuff....hell......I'm just lost. I'm glad there are forum members like you, to make sense of it all......for the rest of us.
Now you're getting it
Hey man, I'm just playing with ya.
I can tell by your tone that you're not a douche', which is why I was enjoying being a butthead. :o
I know what you are getting at with your initial comments. And I knew I'd get feedback from the 'ghetto looking' comment, but it's just my opinion, no big deal.
Have a great day and a Merry Christmas!!!
Thread Starter
Supporting Vendor
Joined: Jul 2010
Posts: 8,541
Likes: 888
From: Republic of Texas
I'm thinking the catch can setup would work best for me.....but my EE setup won't fit in the original location in front of the passenger cylinder head. Anyone know of a catch can that can be mounted elsewhere?
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Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
If you install one, post some pics for us
Thread Starter
Supporting Vendor
Joined: Jul 2010
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From: Republic of Texas
I'm thinking about mounting it just outside the battery area. I'm thinking about using the AIR block off bolts on the headers as a anchor point for the catch can bracket. This would mount the can at about 45 degrees to vertical and still allow easy access to the can bottom for maintence.
Thoughts?
Tech Contributor
Joined: Jan 2007
Posts: 19,353
Likes: 1,125
From: Dyer, IN
Good news, I found my EE catch can.
I'm thinking about mounting it just outside the battery area. I'm thinking about using the AIR block off bolts on the headers as a anchor point for the catch can bracket. This would mount the can at about 45 degrees to vertical and still allow easy access to the can bottom for maintence.
Thoughts?
I'm thinking about mounting it just outside the battery area. I'm thinking about using the AIR block off bolts on the headers as a anchor point for the catch can bracket. This would mount the can at about 45 degrees to vertical and still allow easy access to the can bottom for maintence.
Thoughts?
Tech Contributor
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From: Charlotte, NC (formerly Endicott, NY)
Bill
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Called a "road draft" tube. 
It had a "bologna slice" (45* angle) tip and relied on forward motion of the car to create a slight vacuum over the tip as air passed over the tip. When sitting at a traffic light, you could tell who it was that had ring seal problems with their cars because there would be puffs of oil vapor coming from under the car. Inside the engine, at the rear of the lifter valley, was a sheet metal cylinder (canister) installed, designed to be a "baffle" to prevent too much liquid oil from being sucked into the road draft tube. We used to call it "the beer can".
Tech Contributor
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From: Dyer, IN
Instructor
Joined: Sep 2010
Posts: 242
Likes: 0
From: Topeka Kansas
Breather
I added one because I didn't like the amount of oil getting into the catch can. I am leaving it on for a couple thousand miles to see if it makes a difference.
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Last edited by bucketlist1957; Jan 14, 2011 at 01:35 AM.
Thread Starter
Supporting Vendor
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From: Republic of Texas
Well based on early measurements, it won't be hanging, from this, more sitting on it so there's not much stress on it. I also plan to secure a support piece somewhere on the valve cover. Also the can will be in the upright position.
Tech Contributor
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From: Dyer, IN
Thread Starter
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From: Republic of Texas
Mechanically speaking, all pros. (depending on the type, and frequency of cleaning, and oil film or drip may be noticed on the engine though. Keep it clean is all)
Personally, I do not trust the effectiveness of the PCV system to properly vent the crankcase so I installed a $10 Mr.Gasket one from Autozone. I clean it every so often and all is well. No more dipstick popping up, and I've noticed less oil consumption between oil changes.
Personally, I do not trust the effectiveness of the PCV system to properly vent the crankcase so I installed a $10 Mr.Gasket one from Autozone. I clean it every so often and all is well. No more dipstick popping up, and I've noticed less oil consumption between oil changes.
During the last dyno tune, I noticed oil starting to leak a little from the breather filter. I wiped up as much as I could but some started dripping on hot stuff making a rather nasty smell.
I saw somewhere a few setups that had a hose that came out of the oil cap and went somewhere (probably a catch can) I'd like to replicate this running both the PCV line and the oil cap line to the catch can input with a T fitting to keep oil from leaking in the future.
Question: could I run the vac line from the catch can upstream of the blower on the intake to provide suction at all engine speeds? (I assume the catch can would keep any oil from getting into the head unit intake)
Instructor
Joined: Dec 2010
Posts: 238
Likes: 0
From: Anoka MN
fwiw my engine builder(schwanke short blocks) told me that the ls engines are designed to be vented on the driver side valve cover. so by venting the passenger side cover like i see so many people do (due to the ease of replacing the oil filler cap with a breather) i would have to say that this is not proper for functionality purposes especially if you are still using a pcv system as it allows unmetered air into the manifold.
just an observation so please dont "jump" me if this is not correct, but inform me in a civilized way
just an observation so please dont "jump" me if this is not correct, but inform me in a civilized way