One of my Logs

[Red 2g GSX]

Alright Im haveing a hard time tuning the car. I have tired to tune the car a few times and its just not running right.

Mods: big 16g, 550's, walbro 255, Evo FMIC, SAFC, and Logger.

At 20psi in 3rd gear SAFC is at -15% across the board.
RPM Timing Airflow O2
4708 15* 21.55 1.0
4860 5* 21.31 .98
5144 8* 21.46 .98
5392 9* 22.27 1.0
5524 10* 22.67 1.0
5800 13* 23.35 1.0
6008 14* 23.40 1.0
6160 16* 23.77 1.0
6336 17* 24.13 1.0
6516 17* 24.50 1.0

Any help would be very helpful
Vic

 

[kraka]

Well, a more complete log would've helped...You logged the correct data, but you only supplied data from 4.7k - 6.5k....what happened at 3000-4700? From what you showed here, there seems to be a huge dip in timing, usually indicating knock....It's possible you need to add fuel starting at as close to 4.8k as you can...Timing is really low from then on up to 6k, so for now all I can ask is for you to try and add fuel at 4.5-6k on the safc...

Please post the rest of the log first tho

EDIT: I really tried to disclude the 02 factors here since it is known to be inaccurate and should not be tuned according to...

 

[CanadianTSi]

When you do a log floor it at 2.5k rpm's.

Also Although o2's aren't perfect, 1.0 indicates that you are quite rich.

I would go to -18 and do another pull, that will probably still be rich but it's a good start.

 

[Red 2g GSX]

alright I messed around w/ it some its at about -21% and this is the best log I got.

RPM Timing Airflow O2
2752 16* 5.13 .86
2864 22* 5.91 .86
2996 21* 6.78 .88
3152 17* 7.94 .88
3304 13* 9.40 .90
3484 10* 11.53 .92
3696 9* 13.71 .92
3936 9* 15.21 .94
4132 10* 15.89 .94
4324 10* 17.29 .96
4636 10* 18.73 .96
4864 8* 19.58 .96
5112 9* 20.75 .98
5236 11* 21.43 .98
5428 12* 21.85 .98
5644 14* 22.59 .98
5860 15* 22.32 .98
5960 17* 23.08 .98
6160 19* 22.73 .98
6312 19* 22.89 .98

Thanks
Vic

 

[JiggahMan]

alright I messed around w/ it some its at about -21% and this is the best log I got.

RPM Timing Airflow O2
2752 16* 5.13 .86
2864 22* 5.91 .86
2996 21* 6.78 .88
3152 17* 7.94 .88
3304 13* 9.40 .90
3484 10* 11.53 .92
3696 9* 13.71 .92
3936 9* 15.21 .94
4132 10* 15.89 .94
4324 10* 17.29 .96
4636 10* 18.73 .96
4864 8* 19.58 .96
5112 9* 20.75 .98
5236 11* 21.43 .98
5428 12* 21.85 .98
5644 14* 22.59 .98
5860 15* 22.32 .98
5960 17* 23.08 .98
6160 19* 22.73 .98
6312 19* 22.89 .98

Thanks
Vic

You're still showing knock @3484-3936 and @4864-5112. I would richen your AFC 2-3% @ 3500-4500. Then richen it yet again, 3-4% @ 5000. After you've logged it, come back and post it up.

 

[CanadianTSi]

I'd richen it up from 4-5k and lean it out from there on.