oil pulled through the intake by the factory PCV system will never cause valve problems on the new EB engines since it has a port injector spraying the backside of the valve keeping it clean. This was HUUUGE problem with direct injected only cars like BMW, Subaru (FA20DIT), early Toyotas(lexus) ETC where they were DI ONLY cars and there was no port injector to spray the back of the valve clean. Our biggest problem is coating the inside of the intercooler with oil over time.
---------- Post added at 12:46 PM ---------- Previous post was at 12:41 PM ----------
the factory PCV system will have almost zero impact on engine life other than lowering the efficiency of the intercooler marginally at high mileage on a truck that isn't raced regularly. The catch can is a good idea because the intercooler essentially acts as a catch can in the factory system. Separating moisture from the oil vapor. But it has zero impact on engine life either way.
The reason we run catch cans on our race engines is because the oil vapor can cause a fluctuation on the octane rating in extreme extreme cases. and we need every scrap of intercooler efficiency we can get do to size constraints.
I for one am glad to hear that. I will rest easy knowing that I don’t need to install a catch can. I won’t be racing my raptor and hated to risk warranty issues if something else were to go wrong. Thanks for that information.
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