Blowby

[SolarSteve]

i vote for an oil separator with the outlet plumbed back into the intake. why does everyone not like there crank case gasses going back into the engine? what the hell is the matter with it? diesels burn oil. it will probably give another HP or 2 with that fine oil mist going into the intake also. every diesel vw ever made inhales crank case gasses. its just oily exhaust basically. whats the problem? im just trying to figure out why everyone is against just routing it back to where it goes? i just through a catch can/separator in the mix also. worked great.

I am venting it because over time in restricts the intake passages.  The inside of my intake is pretty nasty and if it were not for the nuts holding it to the head are corroded in place I would have pulled the intake off and cleaned it.

[spencebm]

Remember we are talking about BOOSTED applications only and I am unsure about running it back into the turbo because I don't like the idea of oil droplets hitting my compressor blades at 25 psi so maybe we could discuss early compressor failure due to excess oil?  Thanks for the input guys.

[Rabbit on Roids]

dude, lots of engines have oil droplets hitting the turbo at 25 psi. including mine, and probably most of the builders here. i have a 1.5, so you can just about imagine what i have to deal with. the 1.5's are notorious for having the worst blow by of all VW diesels. and mine is boosted, at right around 25psi no less.