Quote:
Originally Posted by GTRFAN
wstar - It's my understanding that the ECU will try to advance the timing above the base timing until pre detonation is detected, at those points it will pull the timing back until things settle. The higher octane allows the ECU to set slightly more agressive advancement timings throughout the maps.
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That's an interesting idea. I know older engines didn't do such things, but perhaps this new shiny Nissan stuff does. It would certainly help explain that dyno video AK posted.