forourspam

Does anyone know if there's a positive crankcase pressure relief system in place on a factory Ecoboost setup? I would assume that Ford had factored in a solution, correct?

mrpositraction

Yes, on the drivers side valve cover it is vented directly, and un-obstructed to the drivers side intake tube.

forourspam

Ok. Makes sense. So in essence, any contaminants that result from blow by are coating that intake tube and driver's side turbo?

mrpositraction

during boost......during vacuum they are coating the intake manifold and intake runners

forourspam

Hence the benefit of dual catch can... And the old school breather oil filler cap is not emissions legal, right?

mrpositraction

lol, yep

forourspam

Does the cleanside separator you have do anything different from what the dual valve RX catch can setup accomplish?

mrpositraction

It compliments the Dual Valve and a complete solution and still satisfy a closed system.

The Dual Valve RX catch can only services the passenger side, the "dual" part means it operates under boost and vacuum. During vacuum, it uses the intake manifold, during boost it uses the intake tubes pre-turbo (the closer to the turbos the better) as a vacuum source.

forourspam

Ok, see that's what has me puzzled about the RX setup. I was under the impression that the need to evacuate and clean the passenger side pcv was no longer a factor under boost, since positive intake pressure shut off the passenger side PCV and any blow by and positive pressure from the crankcase would then head to the driver side turbo intake tube.

mrpositraction

It will pull air through the cleanside, through the crank case, then through the catch can and then into your intake. This allows evacuation all the time and a closed system. The separator is there for when you do have movement through the cleanside into the intake, to catch any oil/water vapors.

TunerBoost does a much better job of explaining it than I do. I am just a customer of his that wants everyone to realize the potential of his product.