Timing: Difference between revisions

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You have probably looked at a log where the DME pulled 3° of timing and though ''that's not too bad'' then seen another log with 8° of timing pull and thought ''that's too much'' but why is this and how does the DME decide what the timing should be and whether to pull 0°, 3° or 12°?
You have probably looked at a log where the DME pulled 3° of timing and though ''that's not too bad'' then seen another log with 8° of timing pull and thought ''that's too much''. Equally, you might have noticed that the ambient temperature is 110°F and intake temp 140°F and been unsurprised to see 6° correction. Why is this and how does the DME decide what the timing should be and whether to pull 0°, 3° or 12°?


=== Timing Overview ===
=== Timing Overview ===

Revision as of 11:13, 29 June 2024

You have probably looked at a log where the DME pulled 3° of timing and though that's not too bad then seen another log with 8° of timing pull and thought that's too much. Equally, you might have noticed that the ambient temperature is 110°F and intake temp 140°F and been unsurprised to see 6° correction. Why is this and how does the DME decide what the timing should be and whether to pull 0°, 3° or 12°?

Timing Overview

Basic timing angle

Temperature corrections

Knock adaptation

Knock correction

Lambda correction

Torque intervention and optimal timing

Zw_out: final timing angle