[200q20v] Audi 20V Turbo Crankcase Breather System Tuning, - some hel
p found
tommy.arnberg at nokia.com
tommy.arnberg at nokia.com
Wed Nov 1 10:43:05 EST 2000
Hello !
THE BIGGEST PROBLEM IS THAT WITH HIGH
BOOST THE CRANKCASE OIL/AIR MIXTURE FLOW GETS INTO THE
INLET VALVES AND STICKS TO THE VALVE SURFACE
AND AFTER LONGER HARD USE THE INLET VALVES ARE PROBABLY NOT
94% TO 97% TIGHT ANY MORE !
---> this means lower HP and higher fuel consumption !
Breather Medicine seems to be allready quite close:
http://www.martelbros.com/stefs/23.htm
I have changed mail with Frank
and he posted the Internet prices for products:
***********************************************
STE 5100 $333.68
STE 5102 $333.68
STE 5110 $ 73.68
STE 5115 $ 65.26
STE 5116 $ 71.58
STE 5118 $ 76.84
STE 5120 $170.53
STE 5121 $ 87.37
STE 5122 $ 95.79
STE 5124 $ 76.84
STE 5125 $ 13.06
STE 5126 $ 13.24
STE 5127 $ 7.50
All Prices Reflect Internet Discounts
Martel Brothers Performance
"World's Largest Manufacturers Catalog Site"
Serious Parts for Serious Racers
www.martelbrothers.com
800-882-7223
frank at martelbros.com
*******************************************
Could someone ask about the usage details of the
Martelbrothers products. It is difficult for me because of
long distance and 10 hours time difference ?!
rgs,
Tommy
> -----Original Message-----
> From: EXT Phil Rose [mailto:pjrose at frontiernet.net]
> Sent: 31. October 2000 18:56
> To: C1J1Miller at aol.com
> Cc: tommy.arnberg at nokia.com; ouellette at snet.net;
> birabrakes at egroups.com;
> 200q20v at audifans.com
> Subject: Re: [200q20v] Re: [birabrakes] Audi 20V Turbo Crankcase
> Breather System Tuning, help neede d !
>
>
> This sounds exactly like the "problem" I recently posted on
> the 200q20v
> list. My Michelin Man hose quite suddenly has started collecting large
> amounts of oil (well, OK teaspoons full) very soon after my ecu chip
> upgrade was done. Totally dry before that. I suspected the crankcase
> breather as the source and thought it might be a defective pressure
> regulator valve. Right now I'd say that my MM hose is acting as the
> "settling tank", but obviously we'd all be much better off to have oil
> condense before reaching the IC, MM or IM.
>
> In normal spirited street driving, the oil from my car that's
> "lost" this
> way appears to amount to no more than 1/2 qt in 2-3K miles. That upper
> limit assumes none of the total drop in oil level is from from other
> reasons (burning, etc). But in any case it makes a mess of
> the MM hose and
> I'd like find a fix, if possible. Perhaps there's room for a "settling
> tank" to be fitted in the breather hose line near the
> right/rear corner of
> the engine just before the cranckcase pressure regulator
> valve. In fact,
> possibly the high-pressure washer bracket could be used to
> secure it. Seems
> all it would take is two short lengths of rubber hose, 4 clamps and an
> appropriate container. But would it stay cool enough back
> there to condense
> most of the oil?
>
> Phil R.
>
>
> At 9:24 AM -0500 10/31/00, C1J1Miller at aol.com wrote:
> >In a message dated Tue, 31 Oct 2000 6:40:05 AM Eastern
> Standard Time,
> >tommy.arnberg at nokia.com writes:
> >
> ><<
> >Hello !
> >
> >As you all know the breather system is closed
> >and when boost is a little higher than stock,
> >then the crankcase ventilation system in 3B
> >engine (200 20V) pushes the polluted oily air fume back
> >to Turbo charger "mouth"
> >
> >- conceguences:
> > * fuel octane rating in mixture to be burned gets lower
> > * Inter cooler cooling ability gets worse because of
> oil-air fume
> > * the inlet valves get burned oil build up (the worst of all)
> > * air into engine gets warme
> >===============
> >The operation of the crankcase breather hose is explained in
> detail on Scott
> >Mockry's excellent (as always) pages, here:
> >http://www.sjmautotechnik.com/20vboost.html#hose
> >
> >"This breather hose is routed around the back of the engine
> and one end
> >connects to the round black crankcase pressure
> > regulator valve near the back of the valve cover. This
> black regulator
> >valve, controls the flow of crankcase fumes to the turbo
> > intake boot. The valve has two ports inside, one is
> approximately 0.400
> >diameter and a smaller one that is approximately
> > 0.180 inches. The larger port and the smaller port are
> open during low
> >boost operation but when the turbo makes enough
> > boost and flows enough air to produce a vacuum on the
> suction side of
> >the turbo, the regulator valve diaphragm sucks closed
> > and blocks off the larger port. This leaves only the
> smaller port open
> >to flow crankcase breather fumes. "
> >
> >There is more, including a diagram, but the basics are that
> the breather is
> >mostly closed off during higher boost conditions.
> >======================
> >
> >
> >The Gastank ventilation is operated with the
> >"Blue valve" to inlet manifold. The piping has a
> >valve that prevents back flow from inlet manifold during boost
> >condition and during vacuum it sucks the air from crank case and
> >through the blue valve from gas tank ventilation system.
> >
> >Has anyone disconnected / modified the stock system following
> >way or better way ? what is the right way. (I know this is not
> >legal but otherwise the engine gets older a lot faster !)
> >
> >[ Crank_breath.ppt ]
> >
> >If someone knows good product that solves this problem,
> >please mail www-pages and/or source for it !
> >
> >rgs,
> >Tommy
> > >>
> >
> >Looks to me like you want an oil collector system to limit
> oily vapor from
> >being combusted. I've seen other turbo cars install a
> "settling tank" where
> >the vapor can collect, condense, and later be drained...
> >
> >Tommy: can you store that file somewhere that the 200q20v
> owners can access
> >it?
> >
> >On my car, with 5000 mile oil intervals, I burn very little
> measurable oil;
> >perhaps 1/2 quart at most?
> >chris
> >_______________________________________________
> >200q20v mailing list
> >200q20v at audifans.com
> >http://www.audifans.com/mailman/listinfo/200q20v
>
>
> *********************************
> * Phil & Judy Rose Rochester, NY *
> * mailto:pjrose at frontiernet.net *
> *********************************
>
>
>
>
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