DIY - B6 1.8t - Vacuum line and Check Valve removal/simplification

[SHAKING STEVENS]

If you want to provide positive block ventilation

I only want to, if it significantly helps mechanical performance or reliability. Is this a fuss of over nothing? (caused by me)

i cant see why having a vacuum on the 'volume' is important, isnt piston windage negligable? as long as I've got a release for any positive pressure built up (via atmosphere/catch can) my breather system should be adequate for normal reliable, stock powered operation? dumping that (partially burnt) dirty oil vapour mix back into the inlet is not what my engine needs, like me mixing my cereal with horse poo....

This will both protect the block from boost pressurization

current layout will not allow boost pressurisation since it's connected to atmosphere

provide positive block ventilation whenever the manifold is under vacuum

why does the block need to be under vacuum?

a check valve will be installed on brake booster line.

thanks old man, if you need an adopted son i want first refusal, and dont worry, i eat toast for breakfast.. would happily move to the US and get a job there.