Miata Mailing List: November 1993, Message #115
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   From: MANSON@fsd.com
Subject: Idle speed drop
   Date: Wed, 10 Nov 1993 07:37:49 -0500

Greetings Miateers,

Several weeks or months ago, there was a thread concerning engine speed
droop when shifting into neutral and coming to a stop at an intersection or
wherever.  At the time I had not experienced that condition and so paid
little attention.  This morning for the first time I have experienced such
an RPM droop while driving to work.

The temperature outside was cool, but not as cool as yesterday when the 
engine ran perfectly.  There are 15,000 miles on the vehicle, and the only
accessory I have is AC (no A, B, or C packages).  There has been no change
in lubricants, gasoline, timing, or intake configuration.

What was the result of the earlier discussion on the speed droop? [The engine
speed droops to roughly 200-300 rpm (based on crude tach readings), and the
car shudders slightly as if it is about to stall.  The speed recovers then
- I have much faith that it will not stall - and everything is fine again
after about 2 seconds.]

BTW, I observed Andy Poling obtaining a very nice time at an autox in Hunt Valley. 

in Hunt Valley, MD this past Sunday.  If I heard correctly, his time bested
everyone except a modified Lotus super 7.  Congratulations Andy.
Alex Postpischil posted some respectable times as well.

Tom Manson
Manson@fsd.com