Help?

My current setup:
LS2 390ci aluminum block
LSA Heads
LS3 Intake Manifold
LS2 Throttle Body
Procharger F1R @ 14psi (will go to 17psi)
Speed density tuned

My understanding of my inlets/outlets are:
Holley Driver Side Valve Cover = Outlet (dirty)
Holley Passenger Side Valve Cover = Oulet (clean)
Valley Crankcase = Outlet
Intake Manifold = Inlet
Procharger filter = Vacuum source
Oil Filler Cap = Currently using a breather filter

I currently have two catch cans.
1st - AMW with single inlet & outlet
2nd - Proxses Tuning, Double inlet, single outlet


I am currently getting a bunch of oil mist coming from my oil fill cap breather. I am only using the AMW catch can currently. It has the crankcase coming in, going out to intake manifold, w/ check valve. Both my valve covers are currently vented to atmosphere.

Thoughts about how to set it up are:
1st Catch Can (AMW, Single in/out)
PS Valve Cover to inlet
Procharger filter to outlet

2nd Catch Can (Proxses, Twin in, Single out)
DS Valve Cover to inlet, use PCV
Crankcase to inlet ("T" the above together), use checkvalve
Both outlets "T" to intake manifold inlet, use checkvalve

Thoughts?

Thanks!!

 

if you are getting blowby out an oil fill breather during idle or normal driving, then you have a problem with your engine, or your pcv system (connection to intake manifold vacuum) is not working like it should be.

any functional pcv system should be bringing fresh air into the engine, bringing the 'dirty' fumes out, (hopefully collecting any liquids into a catch can, and then connecting to the intake manifold directly with a pcv valve (or metered orifice at a minimum)

i prefer using the valley cover as where fresh air enters the system, but if you dont have one a valve cover port to engine air filter (or valve cover mounted filter) would be the fall back plan. a check valve is not a pcv valve (tho could be used in line with a boost leaking pcv valve or fixed orifice)

the valley cover is too restrictive to vent at high horsepower, so the valve cover oil fill location, or valve cover barbs, possible upgrade to larger barbs or -an fittings, is a better path.

engine mounted air filters are a good band aid to blowby control, but they disrupt the path (see above) of fresh air to dirty through the engine, and they of course eventually make a mess of the engine bay.

 

Only getting the blowby @ WOT.

I will read deeper into this as soon as I get a moment. Just wanted to note that.

TY!