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Old 02-28-2020, 10:48 AM   #308
Gregski
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Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,810
Re: HP Tuners Tutorials - Timing

Timing

This will remove the right amount of timing advance in the precise cells where the knocking is occurring. Or you can change the values manually.

Either way, eye ball the results and make sure there are no huge jumps, 2 to 4 degree differences between cells are acceptable, anything more than that and I would interpolate, meaning adjust the neighboring cells a little so the changes are more gradual

For example, if we changed what ever number to 16 below

9 - 11 - 16 - 21 - 23

I would make the end result look something like this

9 - 12 - 16 - 20 - 23

to make the transitions be more gradual

Keep in mind we are pasting values that are averages so there is some gentleness already built in to what we are doing, however it still may take some time to get this dialed in.

TOP TIP: Before making any timing adjustments, top off your fuel tank with some fresh high octane 91+ as it does make a difference, and retest ie repeat the test drive and collect another set of data, the knocking may have subsided on it's own.
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