I've got a pair of Elite Engineering cans. One for the clean side and one for the dirty side.

They are made very well and made in the USA. I still have to install them however but the cans came with check valves, mounting hardware and instructions.

Corvette Aftermarket Parts, Camaro, GTO Performance Parts, Accessories

 

I use a plastic metco breather can with a filter on top (vent to atmosphere). Lines from both valve covers, and one from the valley to there. If im crawling around the engine I will stink afterward, but just cruising all is fine. At high power levels you will be hard pressed to find a recirculated breather setup that works well.

 

That's been the hold up. One part does not fit all areas. 600hp and down seem to have no problems with a recirculating system. PCV, Catch can check valve and small filter on passenger side.

I have such a huge gauntlet of power ranges, and needs from customers 1 type just is not looking good.

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did you have to weld larger bungs to your valve covers or did you just use the standard location and 3/8-1/2 hose?

 

Yea 600hp is about the limit of the common ones I see. Physics is what it is, at higher power with big blower/turbo and big ring gaps you are going to have more blow-by than less power, so you need to give that air somewhere to go. And we arent talking about an insignificant amount of air. I had 3/8" lines from both valve covers and the valley and it still wasnt enough.

On mine I had the passenger side cover basically stock, a 3/8" npt fitting in the valley cover, and I drilled out the factor PCV port on the driver side cover and threaded in a 3/8" npt fitting. I would use 1/2" ID hose or larger to both valve covers for 600-800hp setups, and 3/4" for 800+. Fabricated valve covers would be a lot easier in this range. You could have the can vent to under the truck if you really wanted to. You could even get fancy and have a boost activated (or electric) valve to switch it from a recirculated system to an open system under boost.

 

I just have a breather on the driver side valve cover. No oil is coming out of it so I think it is working at keeping the oil in the engine.
Set up is a ProCharged 2002 6.0 with Snow water meth.

 

Are there any downsides to pulling the fresh air into the passenger valve cover from the intake pre turbo (next to air filter)?

 

If the crankcase is not adequately vented, you could ingest oil into the turbo from that line, which is bad.

 

your wording confused me here. The pre turbo will PULL air. If you put a hose from you turbo filter to your passenger valve cover. I think the turbo would produce vacuum and pull any positive pressure from the crank case under boost. Im going to do this once mines up and running again with a second can.

 

If pcv and check valve are in place.
While not in boost you are grabbing filtered air through the engine. No big deal.
While in boost the turbo is now pulling harder and your crank case vapors are going to the turbo. Since your check valve is closed.

If installing this way you will want a oil trap of some kind in that line as well.
This type would be for 600 or less.

Our standard stuff comes with a check valve and a filter for that passenger side valve cover.

 

atmosphere -12 line from each cover. if you have 6.0L of air moving around above your pistons you have 6.0L of air moving around below the pistons plus any blow by.