I'm getting consistent 6 to 8 degrees of KR at 4,800rpm. So I looked up how to eliminate it and figured out that the first step is to subtract the KR I'm getting from the "Main spark vs. Airflow vs. RPM open Throttle" table. And I see the row axis of this table is "Spark Airmass"
However, I don't see any spark airmass PID on the VCM.
Is spark airmass identical with "cylinder airmass"?
Also any additional advice or tips on how to eliminate KR would be greatly appreciated.
Cylinder airmass is what spark airmass is using or in other words - yes it's the same... You'll pull your timing out of the high octane spark table... There's actually a whole lot more in depth checks that need to be done in regards to this, but that's the very basics...
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
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