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

[Trevor Frank]

I will agree with Dave here, I am being hyper critical here.  Basically
I am only talking to high hp cars that are very prone to detonation
already as well as ones that have heavy track use with modified
suspension and big tires.   I don't know if I can say that I have seen
any "stock" cars having this problem "oil in the intake" turn
catastrophic.



-----Original Message-----
From: Djdawson2 at aol.com [mailto:Djdawson2 at aol.com]
Sent: Wednesday, February 23, 2005 12:40 PM
To: Trevor Frank; t44tqtro at gmail.com; s-car-list at audifans.com
Subject: Re: [s-cars] Crank Case Pressure and Turbo Smoke?



In a message dated 2/23/2005 1:33:03 PM Mountain Standard Time,
tfrank at symyx.com writes:




Sorry, but I will have to disagree here, there are lots of reasons not
to vent into the motor, so there are lot's of reasons to vent some other
way..either to atmosphere or into a vacuum pump or into the exhaust.
For me the issue was always about keeping blow by gasses and more
importantly oil out of the intake track, I have seen to many failures of
a motor due to oil in the intake.



I agree with the many downsides of venting to the intake that you've
pointed out.  However, being realistic, I think it is important to note
that we're talking about engines that typically exceed 250K miles of
normal life, if maintained properly.  With that in mind, I'm not really
sure I would buy in to venting elsewhere as a critical priority.  I've
been running my recent rebuild for about 10k miles now, and the hose
leading to the MAF/turbo hose remains dry.  I think that normal wear and
tear will take it's toll on the engine long before the adverse effects
of crankcase ventilation.

Anyway... I do appreciate the good points you've made.
Take Care,
Dave in CO



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