help with log

[trbotaln]

whats up. I logged my car today and my timing is way worse than it was about a month ago. My car when I hit full boost gets only 6 degrees and by the end I only get 17 which I guess is not too bad. I used to get 21,22 degrees advance. I think I am knocking in the lower throttle range and also after 5800. I was wondering if I should lean it out a bit or maybe my base timing could be off.

RPM o2 Timing
3840 .87 20
3912 .95 6
4056 .95 6
4236 .95 8
4420 .97 8
4568 .97 8
4744 .95 9
4896 .95 9
5056 .95 10
5228 .95 11
5368 .95 13
5532 .95 14
5672 .95 15
5808 .95 17
5952 .95 17
6072 .95 17
6192 .95 17
6336 .95 17


what do you guys think?

 

[MindBlowin03]

Well, 17 isnt bad since you only took it to 6300 RPMs. Take it to near redline and you may have gotten 19 or so. If you are knocking in the higher range turn the boost down a little and see what happens. I would say richen it some up top, but it seems your on stock injectors.

 

[trbotaln]

I am on stock injectors and my boost is only at 12 pounds. I will try to richen it up a little and then try another log. So do you think that my O2 voltage might be a little but lean?

 

[MindBlowin03]

Im not sure about the o2 voltage. Ive heard its not good to go buy so I usually dont bother. Do you have any adjustments on the AFC? If I were you, I would zero everything out and go from there. If anything, just set up your fuel trims(which may ok anyways). With a full 3" and Supra SMIC you should be able to handle that T-25 no problem.

 

[trbotaln]

Yah I have my afc already zeroed out so I was thinking maybe I could give or take a way a little fuel but that o2 voltage is tuff to tell if it is lean or rich.