11-15-2019, 03:06 PM
Join Date: Jan 2011
Pre-ignition is usually the first indicator that you have exceeded a safe limit. AFR is only a measurement of fuel/air where timing and load also play an equally important part in a tune. A engine running a light load can stand a lot more timing and leaner AFR than one thats wot under full load of acceleration. Each engine/vehicle is different. I start out running fat and tune toward a leaner condition. I wpuld suggest on a mostly stock engine to start with a stock tune and adjust the tables you understand to observe their effects on the tune. Keep your changes under 5% and limit the changes until you see a trend that is understandable..
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...
1956 Jeep Pickup Hemi powered "Street Rod project"
1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected]
Current 60' PB 1.351 (2019) mechanical issue for 1/4m
HTC 2018 TOTY
Support vehicle- 2007 QC G56 4x4 diesel