bad knock in upper rpms

[white 2g awd]

allright, heres my mods on my 95 gsx; full dejon hard pipes, 1g bov, walbro 190, 550's, safc, keydiver chip, rnr o2 elim. dp, thermal catback, evo 3 16g, act 2600, hrc smic. now i'm getting boost creep, but i can live with what i'm getting, but i'm trying to get the knock out, its set at 9psi till about 4900, then it goes up to 18psi by 7k, starting at 5200 my knock gauge starts rising steady till redline. here are my safc settings;
1k-3400 -4%
4k -3%
4600 -1%
5200 +7%
5800-7k +12%

now i'm getting less knock at 5200 since i turned it up from -2 to +7, but at about 5.5k and up the knock gauge just skyrockets, i just can't get rid of this knock, what am i doing wrong, i also have a data log, kinda short, but i only really care about the part that i'm knocking in, so here it is:
4324 22 11.29 .92
4716 10 21.32 .94
5112 9 23.39 .96
5596 12 33.79 .96
5772 11 35.97 .96
6044 10 38.17 .94
6336 9 40.15 .94
6676 8 41.73 .94
6880 6 41.57 .94

now i've takin a couple logs, and the first one today, all of my %'s at 5200 and up were about 3-4 less, but i have the 550 injector compensation, so why should i have to run this high??? or is this normal?? please don't tell me i don't have enough injector for this turbo??? thanks for the help, i was going to try and fix it myself, i just can't get this knock out. thanks again.

Dustin

 

[white 2g awd]

thought i would add, it just started doing this yesterday, and i know i'm lean, but how much should i be richening it up? also one more thing, the first log i took today, the 02 values were the same as the second just about, even after putting it up about another 3%, i don't get that...

 

[white 2g awd]

nobody has any idea??? or nobody is telling me that my injectors are too small?? i just don't understand why its like this.

Dustin

 

[doug]

If tuning your setup is anything like tuning with DSMLink, looking at O2s is not very useful unless you have a wideband. Since you think you shouldn't be adding so much fuel in the upper RPMs, try taking some out instead-- you could be getting "rich knock". I've had knowledgeable tuners tell me that you can take out more fuel in the upper RPMs since the engine is under less load.

 

[white 2g awd]

allright, well i'll try that today, i just figured if it was rich knock, o2 would be pegged over 1.00v.

 

[doug]

I would think that too, but from what I've been told you can't go by O2s very much, especially at WOT when the engine is in open loop and not relying on O2 sensor feedback.

 

[white 2g awd]

well, i took all my settings above 4k and zeroed them out, and now i'm only getting knock at 6.6k and up, so i'll try to richen it up a bit, or lean it, see if that helps, but thanks for the help doug, i just figured that it wouldn't be rich knock with that low of o2 voltages.

Dustin