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datalog-wot pull-50trim/20psi take a look?

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LookDadNoBdyKit

15+ Year Contributor
237
0
Jan 2, 2005
San Diego, CA, California
What are your opinions on this log? AFC settings are -15% across for the HI and this pull was at 19-20psi. Should I lean it out more or turn up the boost a bit more? This is on cali 91 pump gas piss

Time RPM Knock Timing o2 tps
0.25 3938 0 40 0.02 40
0.52 4031 0 34 0.06 49
0.77 4188 0 30 0.84 61
1.03 4313 0 29 0.88 81
1.28 4563 0 24 0.88 100
1.55 4844 0 20 0.88 100
1.81 5281 7 18 0.88 100
2.03 5531 7 19 0.86 100
2.23 5781 6 22 0.86 91
2.44 6063 6 23 0.86 93
2.63 6344 6 24 0.86 100
2.81 6406 5 25 0.86 100
3 6719 7 24 0.86 100
3.18 6750 7 23 0.88 100
3.3600001 7031 6 25 0.88 100
3.55 7188 6 26 0.88 100
3.74 7219 6 26 0.86 100
3.92 7406 6 27 0.86 93
4.12 7563 6 29 0.16 9
4.36 7313 0 42 0.57 9
 
You're knocking from 5000 up. Add fuel from 5000-up. You're on the right track, but you should tune for very little to no knock.
 
Coup D E'Tat said:
You're knocking from 5000 up. Add fuel from 5000-up. You're on the right track, but you should tune for very little to no knock.

Another friend told me to just try to keep leaning it out until the timing is in the high teens and not to worry so much about those counts of knock between 5-10. what is your opinion on that? should i turn up the boost at all?
 
Leaning it out (in theory) will raise timing, because the ECU is reading less airlfow. You probably will get timing into the teens like this, but it would be due to the ECU pulling timing from all of the counts of knock.

Adding fuel should help bring the timing down some.

Good luck.
 
Coup D E'Tat said:
Leaning it out (in theory) will raise timing, because the ECU is reading less airlfow. You probably will get timing into the teens like this, but it would be due to the ECU pulling timing from all of the counts of knock.

Adding fuel should help bring the timing down some.

Good luck.

Thanks for the tips. Im very new to the tuning stuff and im trying to make sense of it all. I richened it up 1% from 5000rpm up. From 1000-4500 RPM i leaned it out 2% more. I will get a log of that in a bit. Im going to turn up the boost to around 21 PSI as well and see how it does.
 
Here is a log at 20 PSI

AFC HI Settings

1000- -18%
2000- -18%
3000- -18%
4000- -18%
4500- -19%
5000- -13%
6000- -13%
7000- -13%


time rpm knock timing o2 tps
0.19 3531 0 36 0.02 57
0.38 3594 0 32 0.02 78
0.57 3656 0 30 0.84 87
0.76 3750 0 30 0.84 91
0.95 3906 0 29 0.84 94
1.15 4063 0 28 0.86 97
1.35 4250 2 22 0.88 96
1.56 4438 6 19 0.88 91
1.72 4594 6 17 0.88 87
1.89 4813 6 16 0.88 86
2.04 5063 5 16 0.86 86
2.21 5250 5 17 0.86 86
2.37 5469 5 18 0.86 84
2.5 5625 5 20 0.86 79
2.6 5719 4 20 0.86 73
2.8 5969 4 20 0.86 73
2.94 6094 4 21 0.86 73
3.08 6188 4 21 0.86 74
3.21 6344 3 22 0.86 73
3.34 6500 3 22 0.86 71
3.48 6594 3 22 0.86 71
3.6 6688 3 21 0.86 71
3.74 6813 3 22 0.86 71
3.88 6875 3 22 0.86 70
4.02 6906 3 23 0.86 67
4.15 7156 3 24 0.86 57
4.3 7125 3 27 0.9 9

What should I change?
 
Yea your TPS is all over the place. It should read 100% at full throttle and stay there until you shift. Fix your problems before upping the boost so you can see how you fixed the problem. :nono:
 
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