where to pull timing when knock is at g/cyl is higher than timing table shows?

[ke5gnz]

Okay here goes i have been working on this for some time. i am new to tuning and read more and more. what the set up here is a 2010 silverado 4.8 rear mount 68mm turbo. mod I have done is short headers, removed cats, turned off rear o2's 1.85 crane rockers (kit with hardened push rods),new maf calibrated for 4inch inlet tubing. the truck runs good but can be better i just dont want to tear it up as i drive it daily 120 miles plus going back and forth to work. if i need to add any more info let me know. the knock is at 1.40 g/cyl and my timing table stops at 1.36 g/cyl thank you

[Iam Broke]

Reduce it in the 1.36 g/cyl row/columns needed. It uses the highest value when the table gets exceeded.

[ke5gnz]

ok thank you will do.

[ke5gnz]

can you look at the rest of the log and tune and let me know where else i can improve

[MikeOD]

can you look at the rest of the log and tune and let me know where else i can improve

I'm looking on the mobile site, so I can't open your file right now, but can you rescale your airmass axis in your spark tables in your file?

I'd give up a little resolution at higher airflow and keep it the same in the normal driving areas if you can edit it.

[ke5gnz]

yes it will allow me to change to figures in the air mass i don't know what to put in fir the numbers that is why i haven't done such

[MikeOD]

The highest I see your g/cyl go in your log is ~1.64. So I would change the last value on the axis to 1.70 or 1.8, then linear interpolate from ~1.08 to the new value...now close and re-open the spark tables, and the new axis will be there. At that point, you can now setup your timing properly in all the airflow areas your truck sees.

[ke5gnz]

ok will try thank you.