[Shotimes] PCV extractor and vacuum in crankcase

[van Oss]

I am a faithful disciple of the apostle Paul [Nimz].  Yet verily, he hath 
struck fear into my heart.  Paul and I have been talking about installing a 
PCV extractor kit on my 92.  Basically it uses a pipe welded into the 
cat-back at a 45-degree angle (venturi effect) to draw crankcase fumes into 
the exhaust stream.  Crankcase vacuum makes a little HP (thank you, Smokey 
Yurick) and safeguards the intake air plumbing from automotive emphyszema.

The question is whether to close off the opening in the front cam cover, to 
generate max vacuum.  If so, words like "collapse some seals" test my faith. 
Do I just drive around and see if my front and rear crank seals implode?

Ah, once again VO gets to experience the bleeding edge of innovation. 
Smokey, where are you when I need you?  Bet he's not answering emails.

VO


----- Original Message ----- 
The noise is from air leaking past the seals and TB openings.  When I did it 
to the V6 it developed a whistle.  It may collapse some seals but I don't 
know.  You could add some flow at the valve cover with a filter that is 
restricted if the vacuum is too much.  Otherwise the more the better.
Paul [Nimz]