Crank case pressure issues

[Cobra_Dusten]

I have posted about this a bit before. Car is in the signature. It is building some pretty serious crank case pressure, i replace the PCV, checked the plugs, they are clean, no smoke out the exhaust, but under wide open throttle, it will blow the pcv and grommet out of the intake, under idle, you can feel air coming out of the oil fill neck and dipstick. At idle, boost gage reads 12-14 pounds of vacuum. any suggestions? it had been mentioned the s/c might be plumbing boost into the crank case, where would i check this. you can feel vacuum at the PCV if you pull it, and put your finger too it, the car runs great, other than this.

 

[Mac-man]

i wander if maybe the middle of the intake where the egr passage could be broken causing boost to bleed off from the two middle ports into the crankcase? i am not sure of how everything is set up on the kennebell kits but that is the only thing i cna think of unless u blew some sort of intake gasket probably??

 

[HISSIN50]

Is the metal screen under the PCV valve and grommet in decent shape?

Are you using a PCV for forced induction (TC and Supra PCV's work pretty decent)?

A lot of guys just end up running breathers to help with this (unmetered air not being a huge issue with the forced induction).

Good luck.