Missing timing somewhere
Missing timing somewhere Hello, have a question someone might be able to help me out with. Have a procharged 00 ws6. Added some timing up top and on a log I noticed I was missing half a degree vs commanded. Wtf? I then started to watch the rpm vs spark and it appears it’s missing half a degree from 4k up, now I do get a degree or two of false knock sometimes on shifts but even without any false knock showing up it still pulls that half degree every single time. I opened old logs and noticed it’s doing the same. I have burst knock 0’d out but I didn’t mess with the delta air. Is there anything else that can be pulling timing?
TECH Fanatic
Joined: Jan 2018
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Look for tables that modify timing based on intake air temperature (IAT), engine coolant temperature (ECT), air/fuel ratio (ARF or EqR). For some of those, there will actually be two tables, one of which is a multiplier for the other table.
And since you've got forced induction, I'm guessing you've got a custom OS, which might have a table (or two) to modify timing based on manifold pressure.
And since you've got forced induction, I'm guessing you've got a custom OS, which might have a table (or two) to modify timing based on manifold pressure.
Yes I am running hpt 2 bar. I’ve modified my IAT table already to pull for meth failure but monitored IAT temps are in the 50s with meth and well below what I have setup. I’ll double check ECT tables..if I messed with them those should be setup to pull during what I’d consider overheating, probably around 210+. Do these have an AFR timing modifier? I will definitely look for that. Do you know if that would that be somewhere in fueling or the spark tabs?
