To track this I say you need some instrumentation. Something that will show ignition timing while you are on the road. Set a base line and try to test different octane gas under the base line conditions.
The 09 G8 has the base engine I want to use in my next build. A 12:1 compression LS3 stroked to 6.7L. I am trying to learn as much as I can about its DOD, VVT systems before I start the build.
I will use VVT, have a couple different plans on how to control it.
Not sure about DoD yet. I would like to use it but not sure how.
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