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I went to the track with the settings left over from my 3rd log in the previous post. Interestingly, tuning the car on a 3rd gear pull from 3-7k rpm was nothing like tuning during drag races. I learned some VERY VERY interesting facts when reading my logs after my runs tonight:
1) I had _0_ readings below 5400 rpm. I had no idea how high the RPMs were when I shifted each gear. From launch all the way to the end of 4th at the traps, I never went below 5400 rpm as far as I can tell. It's possible I went a little lower due to the delay between readings, but it certainly wasn't much lower. So, when tuning for the drag strip, I only need to worry about the 5-7.5k settings it seems.
2) I was rich, rich, rich with the previous settings while in drag mode. I was at .95v or .97v in EVERY gear at EVERY RPM on EVERY run tonight. I was only making very slight adjustments (1-2% at each NE-point) to be safe, but I apparently needed to take much more fuel out than I anticipated. My MPH went all the way up to a max of 106.3, so I am pretty sure it was working, but I _STILL_ had _0_ readings of .91v or .93v. I was simply amazed, but also a bit scared at the same time. I really did not want to keep leaning it out more and more without a wideband to verify the AFR was well below 12.
3) Despite being fairly rich, I at least had no major increase in richness at the higher RPMs like I did when I dyno'd without the S-AFC. Because of this, in my opinion, my timing advance was VERY smooth and right where it needed to be. I was tempted to throw in a few gallons of 112 octane and lean it out some more, but the lines were long, so I just went home. I was very satisfied with the 12.8 and clutch that didn't smell funky.
1) I had _0_ readings below 5400 rpm. I had no idea how high the RPMs were when I shifted each gear. From launch all the way to the end of 4th at the traps, I never went below 5400 rpm as far as I can tell. It's possible I went a little lower due to the delay between readings, but it certainly wasn't much lower. So, when tuning for the drag strip, I only need to worry about the 5-7.5k settings it seems.
2) I was rich, rich, rich with the previous settings while in drag mode. I was at .95v or .97v in EVERY gear at EVERY RPM on EVERY run tonight. I was only making very slight adjustments (1-2% at each NE-point) to be safe, but I apparently needed to take much more fuel out than I anticipated. My MPH went all the way up to a max of 106.3, so I am pretty sure it was working, but I _STILL_ had _0_ readings of .91v or .93v. I was simply amazed, but also a bit scared at the same time. I really did not want to keep leaning it out more and more without a wideband to verify the AFR was well below 12.
3) Despite being fairly rich, I at least had no major increase in richness at the higher RPMs like I did when I dyno'd without the S-AFC. Because of this, in my opinion, my timing advance was VERY smooth and right where it needed to be. I was tempted to throw in a few gallons of 112 octane and lean it out some more, but the lines were long, so I just went home. I was very satisfied with the 12.8 and clutch that didn't smell funky.
