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From: beede@hubcap.UUCP (Mike Beede)
Newsgroups: sci.misc,rec.autos
Subject: Re: Economical driving
Message-ID: <169@hubcap.UUCP>
Date: Tue, 19-May-87 16:35:20 EDT
Article-I.D.: hubcap.169
Posted: Tue May 19 16:35:20 1987
Date-Received: Wed, 20-May-87 06:02:59 EDT
References: <2246@calmasd.GE.COM>
Organization: Clemson University, Clemson, SC
Lines: 20
Xref: mnetor sci.misc:305 rec.autos:2181

The reason for the old saw about abrupt accelerator movements
is that opening the throttle abruptly causes extra gasoline
to be introduced via the accelerator pump.  This enrichment
of the mixture keeps the engine from bogging down--as you
will notice if it ever packs up.  If the pedal is moved
slowly, the extra gas doesn't get introduced (there is
another passage for it to escape from which doesn't
lead into the throat.

Barring this, carburated engines are more efficient when
there is less restriction by the car, i.e., at full
throttle.

I will thicken my skin waiting for net auto mechanics
correct this ##)  <--smiley with hockey mask
-- 
Mike Beede                      UUCP: . . . !gatech!hubcap!beede
Computer Science Dept.          ARPA: BEEDE@TECNET-CLEMSON.ARPA
Clemson University              INET: beede@hubcap.clemson.edu
Clemson SC 29631-1906           PH: (803)656-{2845,3444}