Valve cover breather leaking lots of oil???

[z24turbo93]

I have my boosted 3400 motor in for a few weeks now and i notice that when i get into the throttle the breather on the back cover drops oil all over my downpipe causing lots of smoke. Now i read on a boosted grand prix forum that having the pcv connected to the intake is bad when under boost. It supposidly boosts the valve cover and forces oil out. Now i have taken my pcv valve out and plugged the vaccum going to it and i don't get anymore smoke. is having the pcv hooked up to the intake a bad idea? and is it the true source of the oil spilling out of the breather???

[SappySE107]

You want to have vacuum or at the very least, open air on the crank case. You want to have vents on teh valve covers. Boosted motors usually have a check valve to keep the crank case from seeing the boost, but the best setup would be to have a seperate vacuum pump running to the crank case. This will promote better ring sealing plus help prevent blowing out a seal.

[z24turbo93]

I have the back one vented with filter and the front is open for now, but i will be putting a filter on soon!