Need Help LNF Tuning.................

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I have a 2008 cobalt SS turbo...... i have been playing around with my tune but i think theres more hp to be had...... Take a look at my hpt file and log file.... my best time with this tune was a 13.18 1/4 mile. I have 4 degrees of knock at some points. I have not touched the timing table but i did add 4 to the afr timing advance. Please help me as im a newb at tuning.... any information is helpfull.

I have a custom methonal injection system....... how should i tune for it
i was not using the methonal in the log file......

[Kibosh3]

wow...thats a fairly rigid log u have there...am i reading this wrong? :|

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The log was a 1/4 mile pass from launch

[Bill@HPTuners]

There are some solstice/sky/cobalt ss/tc configs in our 4cyl config repository that would probably work better than the one you are currently using which has very little info other than mph, rpm, kr & throttle position. So I would recommend starting there so you can gather some more info about what is going on while you are logging

[shabby]

Your power enrichment is too lean considering the timing you added, its even leaner than stock. Richen it up, somewhere in the mid 80's should be fine.
Your desired airflow is not exactly subtle, setting everything at 260 is not the way to do it.
And unless you took the cat out, i would put back the cot tables to the way they were.

[08BlackSS/TC]

here's a good config I use for my logs, i modded it just a bit, so don't give me the credit

[08BlackSS/TC]

use that config and look at the knock retard histograms, see where you are knocking and take out some timing at those RPMs.

Its in Engine > Spark Control > Spark Retard > Tip-in Retard

That's how I got most of my knocking out, if you need help just let us know

[08BlackSS/TC]

And why did you add timing? If your knocking you want to subtract. If I were you, I would set those Spark Advance tables back to stock

[[email protected]]

Ill give this config a shot..... and ill upload the results...