Crank case breather help

[advinnie]

Hi all I have a 1600 draw through supercharge set up on my beetle. Now for the crank case breathing all I have done is fit a silly little air filter on the oil filler neck but it’s not enough. I am about to fit some vented rocker covers and run a hose from the covers to a small Empi breather box. Now here’s my question. Do I need to run a hose from the breaker box to the air filter or is that a bad idea cause it will lead to oil mist running through the supercharge which may damage it and cause detonation.
Dose the crank case breather system actually need to see a negative pressure for it to suck out the crank case pressure?

Any advice on this would be appreciated

Many thanks

Adam

[Alexander_Monday]

What is it doing?
Sending oil out past the crank slinger?
Sounds like there is something going on to make too much blow by.
On my supercharged 2110 with 15# boost I only have valve cover breather 5/8" tubes going to a custom made breather with a small air filter and a drain back to the case where the factory breather was and have not had any problems.