Using large lines such as a 1/2, 5/8, or 9/16 (-10an) will help relieve crank case pressure using the intake as a vacuum. A vented system will not function as well as there is no vacuum source. The can should catch any fluids, however there should not be much from this can vs a can that goes between the VC and IM.

Relieving the crank case pressure could stop oil from blowing passed your tubo seals and into the intake if that is the cause.

 

So If I just upgrade the size of the lines it should help? After doing some research I want to keep the stock PCV system but get better relief for the crankcase pressure. If there anything else I can do besides running bigger lines?

Thanks!

 

You are limited by how much air you can move and by your vacuum source. Bigger line = more volume = less crank case pressure.

 

The turbo acts to create vacuum in the crankcase to turbo inlet line correct?

 

Yes under boost the intake will see a vacuum. Some others have used an electric air pump (GM I believe) or belt driven pump (expensive) to produce vacuum off the motor.

 

I replaced the lines with bigger rubber ones and switched to 10w-30 instead of 5w-30. Will see how this works out.

Thanks!