It probably all comes down to the factory maximum advance setting that
will allow the car to run on the worse gas you are likely to come across
while carrying a full load with the engine in need of a de-coke. If your
car is in better shape than this and running on decent gas with the
emissions equipment disabled a higher initial advance setting will
normally improve performance.
Regards,
Peter.
>Date: Wed, 29 Jul 1998 13:13:09 -0400
>From: Chuck Ciaffone <chuckc@ibm.net>
>To: William Elliott
<CN=William.Elliott/OU=Corporate/O=MEI#064#MMS%lngw@wtgw.corp.mei.com>
>CC: IPM Return Requested <jzurschm@etec.com>,
> IPM Return Requested <spridgets@Autox.Team.Net>
>Subject: Re: Timing the '72
>Reply-To: Chuck Ciaffone <chuckc@ibm.net>
>
>Hi all,
>
>Let me clarify:
>
>1. Even I DO know that it will not ping at idle.
>
>2. I DO set the timing according to the MG spec using
> a pretty good timing light.
>
>3. I DO NOT care much about the idle, but am concerned
> with normal, day-to-day on the road performance.
>
>4. I DO NOT hear my MG ping (at speed, of course, not at idle)
> despite advancing the spark .. a bunch.
>
>What does happen is that: after tuning the car to spec, and
>setting the advance, at idle, without the vacuum advance
>disconnected, using a fancy timing light, praying to the
>gods, and whatever, it runs just fine! HOWEVER, if I reach
>in, turn the dizzy just a little to advance the spark more, and then
>observe the resulting advance, it runs EVEN BETTER. NO
>PINGING! NONE!! NOT AT ALLL!!!
>
>WHY?????
>
>What else must be wrong for the engine to run noticeably better
>with the spark advanced beyond book? Should I leave it there?
>
>AND .. with ABSOLUTELY NO PING ... AND WITH THE ENGINE RUNNING
>AT THE SAME TEMP (according to the gauge)!!
>
>HOWCUM?
>
>chuck
>
>
>
>
>--
>=====================================================
>
>chuck ciaffone chuckc@ibm.net
>
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