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Old Tue, December 22nd, 2009, 11:15 PM
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DJ,

Make sure you are not significantly modifying BOTH the SOI Main and SOI Offset tables. They compound each other and can easily result in SOI values well over 45º. For reference, stock is about 24º at full throttle at around 3000 RPM.

Dave,

Since the SOI is handled in degrees on the SOI Main table, this is easier to translate. The SOI Offset (Delay) is much more vague, but is also more useful in the respect that you can control the temperature at which timing is added. This prevents one from running too much timing when the engine is cold and possibly causing damage. You could also use the SOI Adder vs. ECT, but this lacks a bit of resolution as it is only 7x7 to start with and 3 cells are wasted below 800 RPM.
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