Lots of knock?

[Wufei]

Evo III B16g @ 12 psi, 450's, Evo fuel pump. Got a few logs here:

RPM Timing Airflow O2 1 Bank 1
2188 30 1.32 0.88
2264 16 4.48 0.96
2368 16 4.67 0.94
2464 16 5.04 0.94
2564 14 5.58 0.94
2664 13 6.18 0.96
2772 13 6.49 0.94
2900 13 6.99 0.94
3036 13 7.56 0.92
3168 13 8.36 0.9
3500 9 9.34 0.9
3668 9 11 0.9
3832 9 11.63 0.92
4004 9 12.29 0.92
4176 10 13.01 0.94
4336 10 13.67 0.94
4488 10 14.55 0.94
4668 10 15.2 0.94
4840 10 15.75 0.94
5004 11 16.49 0.94
5168 13 17.34 0.94
5308 11 18.76 0.96
5452 12 19.64 0.96
5604 14 20.28 0.96
5748 14 20.79 0.96
5888 16 21.66 0.94
6036 16 22.21 0.96
6160 16 22.36 0.96
6292 16 22.89 0.94
6420 16 23.52 0.94
6528 16 24.07 0.94
6640 17 24.28 0.94
6784 17 14.15 0.88
5252 39 3.58 0.3
4144 35 2.09 0.26
3332 34 1.09 0.64

S-AFC Settings:
RPM Correction
2600 -5
3200 -17
3800 -15
4800 -12
5200 -13
5800 -7
6600 -2

I'm pretty sure there's knock at 5300 to 5400. Confused as to what happens from 3500 to 4800 though.

Another one, 15 min later:

RPM Timing Airflow O2 1 Bank 1
2000 28 3.97 0.98
2104 13 4.31 0.98
2196 14 4.37 0.96
2280 15 4.67 0.96
2372 15 4.95 0.96
2472 15 5.35 0.96
2576 11 5.82 0.96
2684 11 6.39 0.96
2920 11 7.03 0.94
3060 13 7.61 0.92
3192 14 8.13 0.88
3344 13 8.86 0.78
3516 11 9.9 0.86
3688 10 10.76 0.9
3864 9 11.54 0.92
4016 9 12.39 0.94
4180 11 13.14 0.96
4332 11 13.96 0.96
4500 11 14.71 0.96
4668 11 15.53 0.96
4828 11 16.15 0.96
4984 13 16.64 0.96
5132 13 17.63 0.96
5272 12 18.48 0.96
5580 12 19.73 0.96
5720 14 21.09 0.96
5860 15 21.66 0.96
6000 16 22.33 0.96
6124 16 22.68 0.96
6240 17 23.05 0.96
6356 17 23.16 0.96
6484 18 23.42 0.96
6608 18 23.72 0.96
6880 19 23.92 0.96
4368 39 23.92 0.24

S-AFC Settings:
RPM Correction
2600 -5
3200 -20
3800 -13
4800 -10
5200 -10
5800 -5
6600 -2

Tried to tune based on the first log, am I knocking from 2500 to 2900 now too? Knock at 4000 right? Why is it 11 for most of 4k? Knock again at 5200 to 5500 right?

Thanks!

 

[spyderturbo007]

You are really lean between 3 and 4k. Pulling out 20% of the airflow, with stock injectors is not a good idea. Add some fuel back between 3 and 4k and make another pull.

 

[Wufei]

Thanks. I'm going to also make a pull on 0's across the board.