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In this thread The author goes on to explain the basic concept behind a 4-stroke gasoline piston engine, and how it relates to the N54/N55 engines. They discuss timing and knock/detonation, and how advancing ignition timing too much under higher loads can result in detonation.
The author notes that some tuning devices, such as the JB3/4, do not have the ability to modify timing, which can be problematic when increasing load. They emphasize the importance of adjusting timing tables when tuning a modern EFI engine.
The author provides a timing table from a WRX as an example, and invites further discussion on the topic of EFI tuning.
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