Miata Mailing List: July 1995, Message #274
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   From: a.mccombs3@genie.geis.com
Subject: Under-engine Cover
   Date: Thu, 6 Jul 1995 21:05:08 -0400

Tom Manson notes his thoughts on removing the plastic cover under the front
of the engine.  (Hi, Tom!)  Tom theorizes that this might aid cooling
airflow a bit, but might decrease air pressure under the car.  Well, I dunno
- if it increases the airflow through the radiator, and there are no outlets
for that air through the hood or wheel wells/fenders, it would seem that the
increased air flow would result in more air under the car.  Also, (and
again, I dunno) the plastic shield may create a slight venturi effect and
accelerate the air flow under the car, to increase down force slightly
particularly at the front end of the car at speed.  This is interesting -
anyone else on this?
                                                --Jack M. & KANSEI--