I thought I would go ahead and update this thread(Even tho it’s not mine) with my findings.
I was able to contact one of the Head Ecoboost engineers who now is head of the Ranger platform and he provided me with any/all information I needed.
The improved PCV was created to correct the crankcase flow thru the crankcase while preventing the crankcase from being pressurized. With it sealing under boost, it actually allows the clean side vent(connected to the turbo inlet) to become more effective. Improved ring seal meaning less blowby and more effective power. Also keeping the oil clean.
With the new design of the plunger, it specifically was design to allow only fuel vapors and not oil to pass into the manifold. The fuel vapors/contaminants passed actually evaporate within minutes if you wanted to test the theory. The idea behind the fuel vapors passing is if the vapor travels fast enough in its form, buildup would never occur or at least slow the process. Later years you notice the pcv hose becoming shorter and closer to the manifold to lessen the chance of the vapor condensing. In its gas form it’s easily combustible.
The reasoning behind the oil found in the intercooler was due to the fact that the original pcv did not have a successful rate at closing under boost. Blowing boost into the crankcase pushing oil out of the clean side vent. The original pcv was fords 1st take on limiting the amount of blowby sucked into the chamber. It was apparently too effective and for those that never drove the truck intended, oil would rise due to contamination. With the revised pcv the only thing being put into the intercooler is fuel vapors from combustion. Little to no oil should be observed and will not effect combustion at all.
With the design of the crankcase ventilation, the ecoboost motors will never experience positive crankcase pressure. UNLESS the pcv were to fail ,no vent was provided, internal damage etc. He even stated the stock crankcase ventilation is good for even more power. Example being the GT and Raptor. But if pushing larger numbers then improvements can be made.
Overall I was very thankful with him providing answers I have been searching for months. With the knowledge he provided I will be starting another thread regarding correct crankcase ventilation.
Anyone with a 11-14 F150 3.5 I highly recommend throwing in the improved PCV :KR3Z-6A666-A. Following the change it is best to perform a KAM reset.
2010-2020 Ford part # KR3Z-6A666-A - PCV Valve
www.tascaparts.com