first log

[jakegrr]

ok my buddy and i are trying to tune his new gm maft set-up...hes running 1g awd...3" cat-back 2.5" downpipe, O2 housing, 15psi, 93 octane, 95 degrees outside, bov is open atomsphere, hard intake pipe witn k&n. 3rd gear pull.

RPM Time O2
3093 15 .91
3250 14 .91
3375 15 .91
3500 15 .91
3656 16 .91
3843 17 .91
3906 17 .91
4156 17 .91
4281 15 .91
4437 15 .91
4687 16 .91
4781 16 .91
4968 17 .91
5125 17 .91
5281 20 .89
5406 20 .89
5531 21 .89
5687 21 .89
5718 22 .89
5937 23 .89
6156 23 .89
6250 23 .89
6343 22 .89
6500 21 .89
6593 20 .87
6656 20 .87
6750 19 .87
6812 19 .87
6906 19 .87
7031 18 .87

[99GSX Swede]

Are you tuning with the Maft or a SAFC? Also 95 degrees is pretty hot for WOT pulls. You could be sucking too much hot air causing your timing to be pulled after 6200 rpm. It also looks like you are running a little lean after about 6200 rpm as well.

If you are tuning with the Translator only, are you using the RPM mode or standard? In standard mode I would either do another pull in cool weather or at night and see where your settings are at. You could also just increase your WOT by 5%. If your in RPM mode, then add fuel at 6000 rpm range.

[jakegrr]

83 degrees, 93 octane, 3rd gear, gm maft only on rpm tune

rpm o2 tim
2500 .89 19
2593 .89 18
2687 .89 18
2812 .89 15
2906 .89 15
3000 .89 15
3093 .89 14
3187 .89 14
3312 89 15
3468 .89 15
3593 .89 15
3656 .89 16
3781 .89 16
3843 .89 16
3968 .89 17
4062 .89 17
4125 .89 17
4218 .89 17
4343 .89 17
4468 .89 17
4531 .89 17
4656 .89 17
4750 .89 18
4843 .89 19
5000 .89 19
5156 .89 19
5218 .89 20
5312 .89 21
5350 .50 20 CUT
5375 .89 21
5437 .89 21
5562 .89 23
5656 .89 23
5718 .89 23
5760 .46 22 CUT
5812 .89 23
5906 .89 22
6062 .89 24
6100 .44 23 CUT
stopped after becuase of fuel cut

[scottsee]

timming falls off up top. do you have a way of loging g/rev?? alos tell him to log knock

[jakegrr]

feell kinda dumb but whats g/rev? thanx and ill post knock when i see him next

[spyderturbo007]

Originally Posted by jakegrr

feell kinda dumb but whats g/rev? thanx and ill post knock when i see him next

grams per revolution

Most loggers display lbs/min but the ECU uses g/rev to determine the timing map.

Do a log with rpm, airflow, timing and knock and post that up.

[jakegrr]

on the above log my buddy says his injectors are over 100% by 4000 and we cant figure out why....no boost leaks.......hes at only 15 psi....does he need a fpr? hes running a 190 fuel pump...thanx

[spyderturbo007]

You really don't need an AFPR with a 190lph FP.

The ECU will impose the fuel cut restriction based on airflow only. It has nothing to do with IDC or anything like that.

Is he getting fuel cut with the 14b at 15psi?

[jakegrr]

yeah stock 14b and he doesnt have afpr but idc is reading over 100%