Yes, I know that Paul - but was making the observation that many people
believe that all ECMs operate that way when only a small percentage actually
do.
Most have a preset datum point beyond which they will not advance.
I use a GM sensor on my race car, but the 'brain' that adjusts timing on the
fly is mine.
Bill
In a message dated 14/01/2008 6:55:13 A.M. Pacific Standard Time,
paul.hunt1@blueyonder.co.uk writes:
The ones that gain benefit from
higher octane fuels do *advance* the ignition over and above a planned map
in small steps until pinking is encountered, than back it off more rapidly,
continually.
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