Re[2]: Dyno Testing Q's

[Toby Erkson <Toby_Erkson@ccm2.hf.intel.com>]

Don't the FI cars automatically stop squirting gas when the vehicle is moving 
but there is no throttle (like coasting down a hill)?  A gas saver more than an 
engine cooler I'd venture to say, nonetheless...

Increasing engine speed while at idle, and the engine is hot, also increases the
oil pressure.  This, of course, flows a greater volume of oil per time period 
which helps cool the engine.  I've had experiences where the oil gets pretty 
warm and its pressure drops into the red light zone.  A slight push on the 
throttle to speed up the revs increases the pressure, which extinguishes the red
light, and flows more oil to help cool the engine (it lubricates *and* transfers
heat).
     Toby Erkson
     air_cooled_nut@pobox.com
     '72 VW Squareback 1.6L bored and stroked to 2.0L
     '75 Porsche 914 1.8L for sale
     Portland, Oregon, USA


______________________________ Reply Separator _________________________________
Subject: Re: Dyno Testing Q's
Author:  type-3-errors@umich.edu at SMTPGATE
Date:    5/6/97 2:47 PM
...

Freewheeling down hill helps cool two ways.  Little combustion heat due to low
rev's + more air forced past cooing hardware.

Revving the VW increases the combustion heat generated but also increase the
cooling air to compensate.  The increase in cooling is more than the
increase in temp due to combustion.
...