High crank case pressure under boost
 

Hey all,

Sorry if this has been answered but I couldn't find it. I finally got my 90 NA 1.6 turboed and running. All is well as I am street tuning but I noticed today when going above 10lbs of boost I start to burn oil. I can't be sure but it looks like my valve cover gasket is fine. I have a to atmosphere breather on the valve cover. What am I doing wrong?

Thanks in advance!

What have you done with the PCV valve? Because a stock one has numbers stamped into the sealing face and so it never completely seals out pressure. You'll be pumping boost straight into the crank space.

I haven't done anything with it. You're right. I guess what should I do. I have been doing a little research but no ideas yeat.

Thanks!