[s-cars] Bypass valves - Which one?

[QSHIPQ at aol.com]

Actually Minhea, small amounts of oil, even in vapor form, are enough to make 
a difference.  In vapor form, it's now part of your 'Air' in the A/F ratio.  
Given what I see in perfectly good CIS cars with wet oil PCV, I'm not with 
your conclusion.  Oil also tends to help exacerbate hotspots in the combustion 
chamber.

Put another way, when you see perfectly good I5's at the track emptying a 
quart of oil from a catch can per day, where would that oil go without one?  Ever 
wonder why at track events, oil consumption reaches extremely high levels in 
a perfectly normal S car?  I don't.  I might add that reducing the aeration of 
the oil is key as well (read:  Big oil coolers = good).  For more on this SAE 
970922  Development of Modern Engine Lubrication Systems - coauthored by Uwe 
Geiger Audi AG

SJ


In a message dated 12/8/2003 1:10:03 PM Central Standard Time, 
mik at info.fundp.ac.be writes:
Though, with regards to detonation/pre-ignition, I guess it would take 
$hitloads of oil puking through the breather in order to produce 
detonation, but then it would mean that the engine is so FUBAR that it 
doesn't need to have any performance anymore...