somebody help me tune

[vinh766]

here is a 3rd gear pull. my timing is sorta smooth except for a bit of knock/timing drop, but my o2's are way too high, if i try to turn up the boost, then my o2's get lower, but so does my timing. if i turn the boost down, then the opposite happens. if i take fuel away, it acts the same as turning up boost. but overall, does this look fine to you guys? besides the fact that im a tad bit rich. how can i lower my 02's without disturbing my timing?



rpm, timing, tp%, 02v, and 2nd o2v (ignore that)
3336.0,34.0,11.0,0.9,0.0
3196.0,27.0,34.58,0.1,0.78
3252.0,22.0,43.61,0.12,3.13
3340.0,16.0,48.72,1.02,0.0
3428.0,15.0,49.12,1.02,0.0
3500.0,13.0,49.12,1.02,0.0
3596.0,11.0,49.12,1.02,0.0
3688.0,10.0,60.9,1.02,0.0
3796.0,10.0,61.3,1.02,0.0
3904.0,9.0,61.3,1.02,0.0
4028.0,10.0,73.08,1.02,0.0
4168.0,11.0,72.69,1.02,0.0
4284.0,11.0,73.08,1.02,0.0
,4400.0,11.0,84.09,1.02,0.0
4536.0,11.0,90.77,1.02,0.0
4648.0,11.0,92.73,1.02,0.0
4756.0,11.0,94.7,1.04,0.0
4896.0,11.0,96.27,1.04,0.0
5000.0,13.0,96.66,1.04,0.0
5104.0,12.0,96.66,1.04,0.0
5200.0,12.0,97.05,1.04,0.0
5296.0,13.0,97.05,1.04,0.0
5416.0,15.0,97.05,1.04,0.0
5524.0,15.0,97.05,1.04,0.0
5652.0,16.0,97.05,1.02,0.0
5756.0,16.0,97.05,1.04,0.0
5852.0,17.0,97.05,1.02,0.0
5972.0,17.0,97.05,1.02,0.0
6072.0,18.0,97.05,1.02,0.0
6172.0,19.0,97.05,1.02,0.0
6252.0,17.0,97.05,1.02,0.0
6336.0,17.0,97.05,1.02,0.0
6420.0,18.0,97.05,1.02,0.0
6496.0,18.0,97.05,1.02,0.0
6564.0,19.0,97.45,1.02,0.0
6640.0,17.0,97.45,1.02,0.0
6712.0,18.0,97.45,1.02,0.0

 

[FASTSPOOLINGST]

Go one click lean on mid and high knobs, log another pull and post it. See if your O2's drop to where they need to be at. You seem to be on the right path, keep us posted.

Later

 

[Blk_99gst]

here is a 3rd gear pull. my timing is sorta smooth except for a bit of knock/timing drop, but my o2's are way too high, if i try to turn up the boost, then my o2's get lower, but so does my timing. if i turn the boost down, then the opposite happens. if i take fuel away, it acts the same as turning up boost. but overall, does this look fine to you guys? besides the fact that im a tad bit rich. how can i lower my 02's without disturbing my timing?

It this was a 3rd gear pull, then you should be able to floor it at 2800 or 3000rpm. Because your tps below takes a while before it gets to 97%; ie. 60, 73,84,90. Flooring it will give better results. Yes, your o2's are off the chart rich! Whenever you make a change, upping boost, leaning/riching things out, it will affect timing. Don't worry about it too much; just shoot for timing to drop to 9 or 10 when boost hits, and then climbs to 18ish at the top of the gear, and should never dip along the way. o2's should be around .94, but don't tune for this, you can't trust o2 values that much.

It's hard to tell you exactly how to lean it out. Did you set the base setting up properly, ie using the fuel trims and crusing at 50mph? Either way, you do need to lean things out.



3904.0,9.0,61.3,1.02,0.0 - Not WOT yet
4028.0,10.0,73.08,1.02,0.0
4168.0,11.0,72.69,1.02,0.0
4284.0,11.0,73.08,1.02,0.0
,4400.0,11.0,84.09,1.02,0.0 - Still not WOT yet
4536.0,11.0,90.77,1.02,0.0
4648.0,11.0,92.73,1.02,0.0
4756.0,11.0,94.7,1.04,0.0
4896.0,11.0,96.27,1.04,0.0
5000.0,13.0,96.66,1.04,0.0
5104.0,12.0,96.66,1.04,0.0
5200.0,12.0,97.05,1.04,0.0 - Finally hit WOT, at 5200 rpm.
5296.0,13.0,97.05,1.04,0.0 - Timing has been climbing since it's drop to 9deg
5416.0,15.0,97.05,1.04,0.0
5524.0,15.0,97.05,1.04,0.0 - 1.04 o2 voltages are off the chart rich
5652.0,16.0,97.05,1.02,0.0
5756.0,16.0,97.05,1.04,0.0
5852.0,17.0,97.05,1.02,0.0
5972.0,17.0,97.05,1.02,0.0
6072.0,18.0,97.05,1.02,0.0
6172.0,19.0,97.05,1.02,0.0 - Top out at 19deg's a little early
6252.0,17.0,97.05,1.02,0.0 - Timing droping, could be because you are too rich...
6336.0,17.0,97.05,1.02,0.0 - ...hard to really say.
6420.0,18.0,97.05,1.02,0.0
6496.0,18.0,97.05,1.02,0.0
6564.0,19.0,97.45,1.02,0.0 - 19degs again, then timing...
6640.0,17.0,97.45,1.02,0.0 - ...drops back to 17.
6712.0,18.0,97.45,1.02,0.0

You really can't trust the above log too much because you are so rich.