Miata Mailing List: November 1993, Message #122
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   From: RMCELEARNEY@delphi.com
Subject: Cowling Intake
   Date: Wed, 10 Nov 1993 22:27:11 -0500

Hi Y'all,

Just wanted to follow up on my post from October about re-routing the air
intake on my miata to the cowling area.

I did a little experiment to test the air pressure in that area.  I got a
six foot vacumm tube from an auto parts store and taped one end to the spot
where the intake would be.  I taped a balloon to the other end and hung it
from the driver's visor so it could be seen easily.  That balloon filled
with air by the time I got to 30 mph!  I squeezed the air out of the balloon
and it filled right back up.

Now I wouldn't call this conclusive proof that the air pressure in the
cowling area is higher than ambient at speed because there are a couple of
things I should have done for a control, but it looks promising.

Will keep everybody posted.

Thanks to Sandy, Jeff, Bob, Mike, and Gordon for your input.

Rick
Atlanta