[s-cars] Crank Case Pressure and Turbo Smoke?

[Djdawson2 at aol.com]

In a message dated 2/22/2005 6:43:58 AM Mountain Standard Time, 
strangconst at rogers.com writes:

> Which way is that pipe (off the valve cover to the MAF-Turbo hose) designed 
> 
> to flow.

It is supposed to flow into the turbo inlet... any crankcase pressure is 
supposed to be relieved by this flow.

> It should pull air out of the clean intake stream or is it designed to just 
> 
> vent gases to the intake stream.
> 

It is designed to pull gases through the intake stream.  The crankcase can 
effectively be vented to atmosphere.  Recycling it through the intake is a means 
of lowering pollution.  There is almost always a vacuum in the turbo to MAF 
hose.  This is where the WGFV also gets vacuum to hold your wastegate shut 
under boost.
HTH.
Dave in CO