RE: California Emissions

["Retherford, Martin" <MRetherford@xxxxxxxxxxx>]

This subject keenly interests me.  I have been told by some "V-8" motor guys
that this joining pipe would be used for back pressure.  Admittedly these
guys are far from someone I would call an expert but this question still
looms.
All I can figure it for is that it may help with stopping back pressure.
Any given cylinder during it exhaust stroke would vent some pressure into
each of the other cylinders tubes, possibly negating a back pulse coming
from the collector.
The exact opposite is possible as well.  It may be there to slow scavenging.
In any case I am waiting for an experts comments on this or I can find a
book on exhaust system design.

Damn!  Where is a fluid dynamics degree when you need one?

Martin Retherford

- -----Original Message-----
From: Burt Barrett [mailto:burtb@xxxxxxxxxxxxxx]
Sent: Tuesday, May 16, 2000 12:13 PM
To: STDIGEST
Subject: California Emissions


Hi There STERS

I just read the Digest re: California Emissions.  Does anyone out there know
exactally what california emissions consist of?  I have a 99 Sprint ST with
6K on it-seems to have plenty of HP.  But I am curious as to what it does
have as far as HP robbing emmission controls.  I have been led to believe
that the only emission control-is a exhaust crossover pipe-which links all
three exhaust pipes.  I was told that is the "catalic converter"  and that
the California Triumphs ALL have it, and there is nothing else.  Are these
people at the Dealerships pulling my leg?  Does the crossover affect
performance?

Burt &
Big Red

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