[urq] Too much Crankcase ventalation?

QSHIPQ at aol.com QSHIPQ at aol.com
Wed Sep 5 12:49:24 EDT 2007


 
Gents
I think there are some misunderstandings of how PCV works, and the risks  and 
benefits of a variable PCV valve closed loop system.  If I were looking  to 
modify PCV to be properly routed, the nicely designed ball valve used in the  
toyota supra turbos is where I'd start my search.  For a good introduction  
into how that valve works and some of the issues, take a gander thru this  pdf...
 
_http://www.autoshop101.com/forms/h63.pdf_ 
(http://www.autoshop101.com/forms/h63.pdf) 
 
I used this information as a guideline for PCV reroute and modification on  
my supercharger addition to my landcruiser
 
HTH
 
Scott Justusson
In a message dated 9/5/2007 10:35:40 A.M. Central Daylight Time, Djdawson2  
writes:

Claus,
This is the same experience I've had.  Mine is a '93 UrS4 with an  AAN, and 
runs in the lower 12 second range as well.  Upon launch, oil  goes 
everywhere... typically 1/2 quart pushed out the breather on  each run.  The car isn't 
geared appropriately for the 1/4 mile, so I end  up going through the traps at 
over 8000 rpm.
 
During daily use, this is not ever an issue... but very annoying during a  
hard launch on the street or track.
 
Dave



 



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