crank case pressure
Drifting
Joined: Jul 2001
Posts: 1,897
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From: La Fontaine Indiana
Re: crank case pressure (Ronnie_W)
Thanks Bart, I have the evac kit but am only running one oil separater from the valve cover to the exhaust at this time and one oil separater from the other valve cover to the supercharger intake. I guess I will drill one of the valve covers for a breather and take the line going to the intake and tie it into the exhaust instead.
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: crank case pressure (black bart)
Once it is oil coated it is no longer efficient at cooling the air.
I was looking at the Moroso kit but it has two breathers. I'm not sure how the L98 is setup but the LT-1 only has a hole in the passenger valve cover and a hole in the drivers side manifold where the old PCV valve was.
What do you guys suggest it do with that side?
:confused: :confused: :confused:
Thread Starter
Pro
Joined: Jan 2003
Posts: 638
Likes: 23
From: St. Johns Fl
Re: crank case pressure (lead foot 85 vet)
Ronnie--w what your doing should work ...whats the problem? still to much crankcase pressure?
Thread Starter
Pro
Joined: Jan 2003
Posts: 638
Likes: 23
From: St. Johns Fl
Re: crank case pressure (black bart)
I would not run a hose from the valve cover to the blower intake
[Modified by Ronnie_W, 3:45 PM 8/27/2003]
Drifting
Joined: Jul 2001
Posts: 1,897
Likes: 0
From: La Fontaine Indiana
Re: crank case pressure (vvv90)
Once it is oil coated it is no longer efficient at cooling the air.
THAT'S IT! I'm sold. :yesnod:
I was looking at the Moroso kit but it has two breathers. I'm not sure how the L98 is setup but the LT-1 only has a hole in the passenger valve cover and a hole in the drivers side manifold where the old PCV valve was.
What do you guys suggest it do with that side?
:confused: :confused: :confused:
THAT'S IT! I'm sold. :yesnod:
I was looking at the Moroso kit but it has two breathers. I'm not sure how the L98 is setup but the LT-1 only has a hole in the passenger valve cover and a hole in the drivers side manifold where the old PCV valve was.
What do you guys suggest it do with that side?
:confused: :confused: :confused:
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: crank case pressure (black bart)
So is it necessary to have both a traditional Filter/breather (like in the rear of your valve cover) and an evac also?
In other words, do you need both a traditional breather and moroso evac breather?
Or, can I just run the moroso breathers into my exhaust, essentially venting ALL crank case gases to the exhaust?
(clear as mud :rolleyes:)
[Modified by vvv90, 4:19 PM 8/27/2003]
In other words, do you need both a traditional breather and moroso evac breather?
Or, can I just run the moroso breathers into my exhaust, essentially venting ALL crank case gases to the exhaust?
(clear as mud :rolleyes:)
[Modified by vvv90, 4:19 PM 8/27/2003]
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Race Director
Joined: Feb 2002
Posts: 11,268
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From: Honolulu, HI
Re: crank case pressure (black bart)
o.k. I'm trying to figure this out....is it because at idle there won't be enough
exhaust flow/vacuum to pull out the gases and they need to come out the valve cover filter, but at WOT the velocity flow of the exhaust will take over and actually pull the gases out of the crankcase preventing the oil from saturating the filter otherwise?
In any case, I'm going to have to convert my oil fill cap to a breather.
O.k. so let me kow if I have this right....I put a filter on the rear hole on the
passenger side, convert my oil fill cap to the moroso style breather....but
what do I do with the hole in my instake manifold on the dirver's side? Is it
safe to just cap it? THeoretically shouldn't the left and right bank have just as much pressure as the intake manifold from the crankcase?
What about just T-ing the intake manifold opening to the evac tube?
Sorry for all the questions. :leaving:
[Modified by vvv90, 8:00 PM 8/27/2003]
exhaust flow/vacuum to pull out the gases and they need to come out the valve cover filter, but at WOT the velocity flow of the exhaust will take over and actually pull the gases out of the crankcase preventing the oil from saturating the filter otherwise?
In any case, I'm going to have to convert my oil fill cap to a breather.
O.k. so let me kow if I have this right....I put a filter on the rear hole on the
passenger side, convert my oil fill cap to the moroso style breather....but
what do I do with the hole in my instake manifold on the dirver's side? Is it
safe to just cap it? THeoretically shouldn't the left and right bank have just as much pressure as the intake manifold from the crankcase?
What about just T-ing the intake manifold opening to the evac tube?
Sorry for all the questions. :leaving:
[Modified by vvv90, 8:00 PM 8/27/2003]
Drifting
Joined: Jul 2001
Posts: 1,897
Likes: 0
From: La Fontaine Indiana
Re: crank case pressure (vvv90)
o.k. I'm trying to figure this out....is it because at idle there won't be enough
exhaust flow/vacuum to pull out the gases and they need to come out the valve cover filter, but at WOT the velocity flow of the exhaust will take over and actually pull the gases out of the crankcase preventing the oil from saturating the filter otherwise?
CORRECT
In any case, I'm going to have to convert my oil fill cap to a breather.
O.k. so let me kow if I have this right....I put a filter on the rear hole on the
passenger side, convert my oil fill cap to the moroso style breather....but
what do I do with the hole in my instake manifold on the dirver's side? Is it
safe to just cap it? THeoretically shouldn't the left and right bank have just as much pressure as the intake manifold from the crankcase?
What about just T-ing the intake manifold opening to the evac tube?
Sorry for all the questions. :leaving:
[Modified by vvv90, 8:00 PM 8/27/2003]
exhaust flow/vacuum to pull out the gases and they need to come out the valve cover filter, but at WOT the velocity flow of the exhaust will take over and actually pull the gases out of the crankcase preventing the oil from saturating the filter otherwise?
CORRECT
In any case, I'm going to have to convert my oil fill cap to a breather.
O.k. so let me kow if I have this right....I put a filter on the rear hole on the
passenger side, convert my oil fill cap to the moroso style breather....but
what do I do with the hole in my instake manifold on the dirver's side? Is it
safe to just cap it? THeoretically shouldn't the left and right bank have just as much pressure as the intake manifold from the crankcase?
What about just T-ing the intake manifold opening to the evac tube?
Sorry for all the questions. :leaving:
[Modified by vvv90, 8:00 PM 8/27/2003]
If you have a state inspection then they will require it otherwise plug everthing. The moroso is not a breather it is a oil seperator the one way valve has a spring in it to prvent hot exhaust gas from coming up the hose the pipe that you weld in is cut at a 45 degree angle as the high velocity exhaust passes it will make a vacuum on it and open the valve also when crankcase pressure increases it will push on the valve. With the breather if pressure becomes more than what can go out the hose it will flow out the breather at low speed the breather will do all the venting. NOW IS IT CLEAR AS MUD
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: crank case pressure (black bart)
NOW IS IT CLEAR AS MUD
Thanks Bart man, I just feel more comfortable understanding the physics behind it is all. I don't want any surprises when I'm done modding and hacking.
:cheers:
One last question. The Moroso kit comes with two separators. Is it absolutely important to have one on each valve cover? Or am I safe just doing one side? :leaving:
Drifting
Joined: Feb 2002
Posts: 1,937
Likes: 2
From: Arvada CO
Re: crank case pressure (vvv90)
One last question. The Moroso kit comes with two separators. Is it absolutely important to have one on each valve cover? Or am I safe just doing one side?
I have heard to run both if i am correct...bart said that before along time ago? or i heard it some where?
I have heard to run both if i am correct...bart said that before along time ago? or i heard it some where?
Drifting
Joined: Jul 2001
Posts: 1,897
Likes: 0
From: La Fontaine Indiana
Re: crank case pressure (vvv90)
NOW IS IT CLEAR AS MUD
:thumbs: :thumbs:
Thanks Bart man, I just feel more comfortable understanding the physics behind it is all. I don't want any surprises when I'm done modding and hacking.
:cheers:
One last question. The Moroso kit comes with two separators. Is it absolutely important to have one on each valve cover? Or am I safe just doing one side? :leaving:
:thumbs: :thumbs:
Thanks Bart man, I just feel more comfortable understanding the physics behind it is all. I don't want any surprises when I'm done modding and hacking.
:cheers:
One last question. The Moroso kit comes with two separators. Is it absolutely important to have one on each valve cover? Or am I safe just doing one side? :leaving:
You could go with a vacuum pump but then you have to find a place to mount it and build pulleys lot easier with what I used. Don't make any holes until you have the breathers. They are a lot of different kinds. I have one the I think it is 1 1/2 inch opening and it clamped on so I got a piece of nylon cut it to length then turned it in my lathe to fit the breather. I left enough stick out to nearly reach the head turned it to fit the rubber grommet real tight then bored a hole in the center leave about 3//16 wall then I drilled a lot of small holes in the side pluged the bottom with rtv then put stainless steal core ball material in the center hole put it in the breather and clamp it then just push it into the grommet on the valve cover. Shop around see what you can find for a breather and use both of the oil seperators. I worked on my car today it was wanting to die if I pushed the clutch in at high rpm. I read the manual again and applied my new found wisdom to the dfi and Waala she just drops down to idle with no undershoot and idles perfectly. :) :hurray:
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: crank case pressure (vvv90)
O.k. I think I'm going to order the Mr. Gasket kit because it's looks to be the same except for chrome separators instead of Iodized ones. (looks preference :D )
Also, Spectre makes a screw in breather for the oil cap: Summit part# SPE-4281
Before I order I just want to make sure that this will still work without having headers.
Am I going to be creating too much back pressure with my stock exhaust manifolds for this to work properly?????
Also, Spectre makes a screw in breather for the oil cap: Summit part# SPE-4281
Before I order I just want to make sure that this will still work without having headers.
Am I going to be creating too much back pressure with my stock exhaust manifolds for this to work properly?????
Drifting
Joined: Jul 2001
Posts: 1,897
Likes: 0
From: La Fontaine Indiana
Re: crank case pressure (vvv90)
I don't know what you have after the stock manifolds ??? pre-cats and main cat but if you have all that it should work OK install in the exhaust pipe after the pre-cats. I would try to put them where when you get headers they will fit without changing the hose. Two things to asK Summit when you call is does the screw in breather have a baffle on it if not you will have to make one and is the Mr. gasket evac kit just a breather type or is it a oil seperator. The Moroso is a oil seperator and it cost a lot more so you got to wonder if the gasket is not just a cap with a hose connection on it. I had my Moroso chrome plated. If you get something other than an oil seperator you will blow oil into the exhaust real bad. Maybe you could hire out to the city as a mosqiuto killer :lolg: We will call you OLE-SMOKEY :lol: :lol: :lol:
[Modified by black bart, 4:21 PM 8/28/2003]
[Modified by black bart, 4:21 PM 8/28/2003]
Drifting
Joined: Feb 2002
Posts: 1,937
Likes: 2
From: Arvada CO
Re: crank case pressure (vvv90)
vvv90---> :steering: SMOKE---> :U Black Bart--> :lolg: Corvette forum members :nono: :sad: :thumbs: :rofl: :leaving: :lolg: :lol: :eek: :eek: :rolleyes: :_dupe: and vvv90 mad as heck---> :cuss so the corvette forum member all run---> :leaving: :yawn: :rofl: :leaving: