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Old 02-08-2010, 10:28 AM   #31 (permalink)
Xan
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Quote:
Originally Posted by kannibul View Post
AFAIK, there are no ECU's that will advance timing (further) to compensate for higher octane fuels than required.
It's been 10 years since I worked at engine calibration at Jaguar, but I do remember the production tune we made was able to work in a wider operating area dependend on fuel rating/quality both upwards and downwards.

Active Ignition Timing
A nice write up of the principle used by others.
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