not another breather thread
Thread Starter
Teching In
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not another breather thread i am convinced and happy to use valve cover breathers with my setup but am so annoyed with oil vapor coming out of them all the time,,
i am willing to use check valves those don't crack open unless crankcase pressure builds up,,
do you think this a good idea?
if yes,, where to buy check valves online? and what pressure should they crack open at?
i am willing to use check valves those don't crack open unless crankcase pressure builds up,,
do you think this a good idea?
if yes,, where to buy check valves online? and what pressure should they crack open at?
Do you have some sort of PCV hooked up to facilitate evacuation of the crankcase? The design is not just to vent pressure by to clean blow-by out of the motor. With static breathers a lot of funky stuff could hang around in the motor. The suction(with a proper catch can) would prevent the situation you are experiencing.
Thread Starter
Teching In
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Do you have some sort of PCV hooked up to facilitate evacuation of the crankcase? The design is not just to vent pressure by to clean blow-by out of the motor. With static breathers a lot of funky stuff could hang around in the motor. The suction(with a proper catch can) would prevent the situation you are experiencing.
1- LME block blows-by more than usual
2- valve covers ports not baffled enough (no valley cover barb thanks to maggie)
3- SMC dual catch can not doing good
4- vacuum at port under WOT (1.5 psi)
5- huge vacuum at port right after WOT
6- too much vacuum in idle (can't get oil filler cap off)
thats why i am over that unless you can help me figure,,
Well boost changes a lot, doesn't it? That's tough. If you had a dual catch can and still that much oil IDK how to help. You could go with an electric evacuation pump. Could be set to relatively low vacuum to not suck so much oil out. But IDK if the cost of such a thing would be worth it as I don't know exactly how much not having proper PCV adds to wear or stress of the motor. I know it is suboptimal but I don't know how bad it is.
any valves with a base pressure to relieve the crankcase IMO is already too much pressure. it needs to be able to freely exit whenever it exists.
your too much vac at idle is because you no longer have a vacuum metering pcv valve (and maybe not even a fixed restriction) in the manifold vac line.
not sure how much power you are talking about but the more you make the more you will need to let it breathe out. I usually feel each unrestricted stock valve cover barb is worth 500 horse of capacity to my cans.
if you have interest in moving to a boost and blow-by capable catch can I can help with that.
my 'pcv' flavor catch can is available at http://www.ws6project.com/user_stor/...oducts_id=6352
i believe it addresses all of your wants and needs. the sight class can be changed out for an additional port if needed.
your too much vac at idle is because you no longer have a vacuum metering pcv valve (and maybe not even a fixed restriction) in the manifold vac line.
not sure how much power you are talking about but the more you make the more you will need to let it breathe out. I usually feel each unrestricted stock valve cover barb is worth 500 horse of capacity to my cans.
if you have interest in moving to a boost and blow-by capable catch can I can help with that.
my 'pcv' flavor catch can is available at http://www.ws6project.com/user_stor/...oducts_id=6352
i believe it addresses all of your wants and needs. the sight class can be changed out for an additional port if needed.
Thread Starter
Teching In
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mightymouse,,
thank you for chiming in,, your can made a lot of sense to me and i am interested,,
let me describe my setup for you to advise proper design,,
-LME 418 block
-2300 tvs maggie with unrestricted vacuum port
-one unrestricted port per each valve cover
-no valley barb
-intake pipe with barb after maf
-car pushes 550rwhp@13psi and 630rwhp@16psi
-castrol 20w-50 engine oil
i wish i listed all what it takes to design an effective pcv,,
thank you for chiming in,, your can made a lot of sense to me and i am interested,,
let me describe my setup for you to advise proper design,,
-LME 418 block
-2300 tvs maggie with unrestricted vacuum port
-one unrestricted port per each valve cover
-no valley barb
-intake pipe with barb after maf
-car pushes 550rwhp@13psi and 630rwhp@16psi
-castrol 20w-50 engine oil
i wish i listed all what it takes to design an effective pcv,,
for those cubes and boost you will either need to run both valve cover existing ports to the can OR use an oil fill adapter like -8 or 10 to give adequate venting of the engine to the can.
pcv can will do a better job at idle and part throttle to keep venting from happening into the engine bay.
the particular hose connections are best determined (at least by me) if i can see the engine bay. are you sure each valve cover only has one barb?
pcv can will do a better job at idle and part throttle to keep venting from happening into the engine bay.
the particular hose connections are best determined (at least by me) if i can see the engine bay. are you sure each valve cover only has one barb?
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Thread Starter
Teching In
Joined: Aug 2010
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if i added an air vent port or oil fill to a valve covers, it will cancel the vacuum in the same cover,, right?
Thread Starter
Teching In
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what if i use your can as follows:
-dirty port to valve cover 1
-clean port to maggie vac port
-fresh air tube from valve cover 2 to intake pipe
-oil fill cap with pressure relief valve for safety
what do you think?
your can has PCV to control vacuum levels within limits?
-dirty port to valve cover 1
-clean port to maggie vac port
-fresh air tube from valve cover 2 to intake pipe
-oil fill cap with pressure relief valve for safety
what do you think?
your can has PCV to control vacuum levels within limits?
the can ws6store sells has built in pcv valve, but any pcv system will need the fresh air tube.
i think if you are going to stay with one can inlet port we can give it a shot, and add the boosted relief adapter to the oil fill if needed.
-at that point you could also upgrade the can for second inlet and go from oil fill adapter to the can itself.
i think if you are going to stay with one can inlet port we can give it a shot, and add the boosted relief adapter to the oil fill if needed.
-at that point you could also upgrade the can for second inlet and go from oil fill adapter to the can itself.
Thread Starter
Teching In
Joined: Aug 2010
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the can ws6store sells has built in pcv valve, but any pcv system will need the fresh air tube.
i think if you are going to stay with one can inlet port we can give it a shot, and add the boosted relief adapter to the oil fill if needed.
-at that point you could also upgrade the can for second inlet and go from oil fill adapter to the can itself.
i think if you are going to stay with one can inlet port we can give it a shot, and add the boosted relief adapter to the oil fill if needed.
-at that point you could also upgrade the can for second inlet and go from oil fill adapter to the can itself.
do you/they carry oil fill cap with boost relief?
is the can upgradeable or should i order it with two inlets anyways?
thank you very much,,