Check out my breather set up.
10-19-2005, 08:25 PM
#1
Check out my breather set up. I posted this in external engines but thought you guys might want to see it too.
Well on my last motor i had the small air compressor air/water seperator as a catch can mod and it was working pretty good.
BUT i belive the rings in this motor are shot cause i have MASSIVE blow by and it fudged up my front and rear seals with the same catch can set up. so i decided to ditch the catch can and put a breather on. I saw the Metco one for $40
and said i'm not payin $40 for a damn breather. so i looked up breathers in summit and found thw ones that clamp onto a 1.5" tube for $12 a piece. I didn't wanna wait so i went to my local speed shop and picked up a couple for $30 all the had was the ones with the chrome cover half way around the filter wich i promptly chopped off (i'm not inyto bling and thats more dead weight).
I had some extra valve covers that were painted black and had holes from someone trying to do the same thing but they messed them up. So i filled the holes and then welded some 1.5" tubes on them. I wish they weren't black but instead of trying to take all the paint off i just re painted where i welded.
How do they look?
Well on my last motor i had the small air compressor air/water seperator as a catch can mod and it was working pretty good.
BUT i belive the rings in this motor are shot cause i have MASSIVE blow by and it fudged up my front and rear seals with the same catch can set up. so i decided to ditch the catch can and put a breather on. I saw the Metco one for $40
and said i'm not payin $40 for a damn breather. so i looked up breathers in summit and found thw ones that clamp onto a 1.5" tube for $12 a piece. I didn't wanna wait so i went to my local speed shop and picked up a couple for $30 all the had was the ones with the chrome cover half way around the filter wich i promptly chopped off (i'm not inyto bling and thats more dead weight).I had some extra valve covers that were painted black and had holes from someone trying to do the same thing but they messed them up. So i filled the holes and then welded some 1.5" tubes on them. I wish they weren't black but instead of trying to take all the paint off i just re painted where i welded.
How do they look?
10-21-2005, 02:51 PM
#6
Originally Posted by 1_Bad_LS1
The one from Speed Inc is $44.99... Is that for one or for two?
If it's $45 a piece, then I think the Moroso/do it yourself route is better for the budget minded...
If it's $45 a piece, then I think the Moroso/do it yourself route is better for the budget minded...
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10-21-2005, 05:57 PM
#8
Yeah my rings are shot but i can barely sometimes smell it on the highway. and iu did two breathers so thats a $60 savings not $15. And then i would need another passenger side valve cover, and those screw in bereathers sit pretty tall.
10-21-2005, 06:02 PM
#9
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It is not sucking any crankcase fumes out though. It is just letting it vent alittle. IMO it is definitely better to pull from your header or your intake to get the proper venalation. Or a drysump/vacum pump setup of some kind. This is what I did.
10-21-2005, 10:28 PM
#10
Yeah a drysump/vacum pump set up would be best but this aint a race car. 
And correct me if i'm wrong but it being hooked up to the intake doesn't really pull a vacum either. the PCV valve closes when there is vacum and opens when there isn't, so its really just venting into the motor.
Using a vacume of some sort to get the ventilatrion is alot better but doesn't it waste alot more oil like that too? and thats why theyre only on race cars.
And correct me if i'm wrong but it being hooked up to the intake doesn't really pull a vacum either. the PCV valve closes when there is vacum and opens when there isn't, so its really just venting into the motor.
Using a vacume of some sort to get the ventilatrion is alot better but doesn't it waste alot more oil like that too? and thats why theyre only on race cars.
10-22-2005, 01:15 AM
#12
Can you give me some more info on this? Right now, I have the stock LS1 PCV system with a AMW catch can. A local member recommended me tonight to get rid of the system and put a breather on it, but wasn't really sure what he was talking about, is this the same thing?
10-22-2005, 03:50 AM
#13
Originally Posted by Dragaholic
Can you give me some more info on this? Right now, I have the stock LS1 PCV system with a AMW catch can. A local member recommended me tonight to get rid of the system and put a breather on it, but wasn't really sure what he was talking about, is this the same thing?
10-22-2005, 08:55 AM
#14
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Originally Posted by SUX2BU
Yeah a drysump/vacum pump set up would be best but this aint a race car.
And correct me if i'm wrong but it being hooked up to the intake doesn't really pull a vacum either. the PCV valve closes when there is vacum and opens when there isn't, so its really just venting into the motor.
Using a vacume of some sort to get the ventilatrion is alot better but doesn't it waste alot more oil like that too? and thats why theyre only on race cars.
And correct me if i'm wrong but it being hooked up to the intake doesn't really pull a vacum either. the PCV valve closes when there is vacum and opens when there isn't, so its really just venting into the motor.
Using a vacume of some sort to get the ventilatrion is alot better but doesn't it waste alot more oil like that too? and thats why theyre only on race cars.
I ran straight breathers and no PCV for a while and started developing a lot of milky, sludgy gunk under my breathers. This was due to inadequate ventilation of crankcase fumes and moisture(condensation). This is terrible for your engine and can ruin bearings and such due to acidy buildups. Even if it's just a race car, no street time, you still should run some type of active ventilation. Like GuessWho said, run a header evac system or something.
10-22-2005, 06:29 PM
#16
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Leave the PCV system and catch can but use either the LS6 style to pull from under the intake or fix it where you are pulling from the drivers side valve cover only. Block all PCV draw from the passenger side valve cover. Also block the factory fresh air intake. Now put the breather in place of your oil fill cap.
Your PCV system will now be pulling fresh filtered air in thru the breather down thru the engine and up and out the other valve cover, metered by the PCV valve, oil fumes and mist will be caught by the catch can and the dirty but oiless air sucked into the intake and burned during combustion. Plus you get a much better pressure release area(due to the breather) under WOT and when you rapidly close the throttle blades after WOT. It's been working awesome for me for a long time now.
Your PCV system will now be pulling fresh filtered air in thru the breather down thru the engine and up and out the other valve cover, metered by the PCV valve, oil fumes and mist will be caught by the catch can and the dirty but oiless air sucked into the intake and burned during combustion. Plus you get a much better pressure release area(due to the breather) under WOT and when you rapidly close the throttle blades after WOT. It's been working awesome for me for a long time now.
11-14-2005, 09:53 PM
#17
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Originally Posted by Dustin Butts
Leave the PCV system and catch can but use either the LS6 style to pull from under the intake or fix it where you are pulling from the drivers side valve cover only. Block all PCV draw from the passenger side valve cover. Also block the factory fresh air intake. Now put the breather in place of your oil fill cap.
Your PCV system will now be pulling fresh filtered air in thru the breather down thru the engine and up and out the other valve cover, metered by the PCV valve, oil fumes and mist will be caught by the catch can and the dirty but oiless air sucked into the intake and burned during combustion. Plus you get a much better pressure release area(due to the breather) under WOT and when you rapidly close the throttle blades after WOT. It's been working awesome for me for a long time now.
Your PCV system will now be pulling fresh filtered air in thru the breather down thru the engine and up and out the other valve cover, metered by the PCV valve, oil fumes and mist will be caught by the catch can and the dirty but oiless air sucked into the intake and burned during combustion. Plus you get a much better pressure release area(due to the breather) under WOT and when you rapidly close the throttle blades after WOT. It's been working awesome for me for a long time now.
11-14-2005, 10:06 PM
#18
Originally Posted by XpEdItIoUs
I am going to do this it just sounds like it will work.
