This is a question about turbos, rebuilds and oil issues.

[jtanguay]

Is the pressure merely the restriction from the holes that the oil comes out of for the lifters and to oil the cam?

yes  although you wouldn't want to run an engine for long without the VC... and 1x with libbybapa.

my 1.6TD had the problem of the dipstick shooting out if i drove the car hard... the sump vent to intake would virtually eliminate that (common) problem.

[Smokey Eddy]

That's not the right way to do it.  You want hose from the block to enter the port of the puck that is stuck into the valve cover.  Teeing into the hose from puck to intake would bypass the oil separator/pressure control valve entirely.

Edit: so what kind of line should i use and how exactly should it go into the sump? drill a hole, add a nipple of some sort and then thread that in with a nut on the inside (because the wall of the sump pan is so thin) and use lots of teflon tape... I don't have a welder to weld a nipple on it...

2nd Edit: does anyone have a write up on this or have they done it them selves?

[Smokey Eddy]

Is the pressure merely the restriction from the holes that the oil comes out of for the lifters and to oil the cam?

yes   although you wouldn't want to run an engine for long without the VC... and 1x with libbybapa.

my 1.6TD had the problem of the dipstick shooting out if i drove the car hard... the sump vent to intake would virtually eliminate that (common) problem.

Is the dipstick firing out due to blow-by?

Edit: and im trying to AVOID blow-by entering the intake... i don't want ANY oil going past the valves. It really gums everything up :S

[jtanguay]

Is the pressure merely the restriction from the holes that the oil comes out of for the lifters and to oil the cam?

yes   although you wouldn't want to run an engine for long without the VC... and 1x with libbybapa.

my 1.6TD had the problem of the dipstick shooting out if i drove the car hard... the sump vent to intake would virtually eliminate that (common) problem.

Is the dipstick firing out due to blow-by?

Edit: and im trying to AVOID blow-by entering the intake... i don't want ANY oil going past the valves. It really gums everything up :S

yep dipstick firing out due to blow by at high rpm/boost. but now i have my mTDI that i haven't really pushed due to slipping clutch

at least on your engine you don't need to worry about the EGR gunk  but yea reducing blow-by is really good idea if theres a lot. it would be cool if there was a way to use the force of the incoming air to create a centrifuge to sling the oil out... but a much less complicated setup would be to either add a filter to the intake and a pipe running to the sump, or just running the simple catch can.