how much more often do you change your oil? noticeably more sludge?
what about a mist of oil covering your engine bay?

500hp plus daily drivers?

i drew out a pcv setup but maybe im over thinking this and its not really an issue.

I have the Driven Fab VTA, I change my oil every 3k. I've heard people say you need to change your oil sooner, but when asked why no one can say why. No sludge, oil looks the same as it did before adding the VTA.

That system you drew is pretty much closed.


I see no reason why it would either make a mess or contaminate oil in the crankcase.
The catch cans take care of mess.
The system does not draw unfiltered air into the crankcase at WOT.


Good2Go!

sounds great right, normal pcv with catch cans on cruise and vta on WOT. but nobodys doing it.

i thought either the oil contamination is over exaggerated, or the check valves are to big a restriction or dont have a low enough crack pressure.