afc vs MAFT , rich, log inside

[DSMcamaro]

mods are all listed in profile, but to save time, here they are:
stock 14b
warblo 190
FMIC w/ 2 1/2" piping (did a boost leak test)
MBC set at 15psi
ported 02 housing
full 2 1/2" exhaust

1.) low fuel trim is close to 140%, does this mean im rich? what should my fuel trims be?(100?)

2.) I have a 3" GM MAS and have been wanting a translator for a while, but do you think im better of getting a AFC? will i be able to tune good enought with the MAFT?

3.) i'm at 15psi now, with the FMIC I would think I could run alteast 18psi. should i do another log at 18 and see where im at? any help is appreciated, thanks.


heres the log: 2nd gear pull and half of 3rd gear.

timing.. FTL.. FTM..FTH..02R..RPM.. knock
38° 138.8% 99.8% 99.8% 0.74V 3313 0
38° 138.8% 99.8% 99.8% 0.14V 3313 0
38° 138.8% 99.8% 99.8% 0.08V 3313 0
38° 138.8% 99.8% 99.8% 0.23V 3344 0
39° 138.8% 99.8% 99.8% 0.10V 3375 0
35° 138.8% 99.8% 99.8% 0.88V 3406 0
34° 138.8% 99.8% 99.8% 0.86V 3469 0
32° 138.8% 99.8% 99.8% 0.88V 3563 0
30° 138.8% 99.8% 99.8% 0.84V 3625 0
28° 138.8% 99.8% 99.8% 0.72V 3656 0
27° 138.8% 99.8% 99.8% 0.92V 3781 0
26° 138.8% 99.8% 99.8% 0.92V 3938 0
21° 138.8% 99.8% 99.8% 0.94V 4063 0
18° 138.8% 99.8% 99.8% 0.94V 4281 0
18° 138.8% 99.8% 99.8% 0.94V 4500 1
17° 138.8% 99.8% 99.8% 0.94V 4719 1
18° 138.8% 99.8% 99.8% 0.94V 5000 1
18° 138.8% 99.8% 99.8% 0.94V 5188 0
20° 138.8% 99.8% 99.8% 0.94V 5344 0
21° 138.8% 99.8% 99.8% 0.94V 5406 0
22° 138.8% 99.8% 99.8% 0.94V 5594 0
23° 138.8% 99.8% 99.8% 0.94V 5656 0
23° 138.8% 99.8% 99.8% 0.94V 5813 0
23° 138.8% 99.8% 99.8% 0.92V 6063 0
24° 138.8% 99.8% 99.8% 0.94V 6156 0
23° 138.8% 99.8% 99.8% 0.94V 6219 0
22° 138.8% 99.8% 99.8% 0.92V 6375 0
24° 138.8% 99.8% 99.8% 0.92V 6469 0
20° 138.8% 99.8% 99.8% 0.92V 6563 11
22° 138.8% 99.8% 99.8% 0.90V 6688 11
24° 138.8% 99.8% 99.8% 0.84V 6125 1
45° 138.8% 99.8% 99.8% 0.90V 5781 0
45° 138.8% 99.8% 99.8% 0.90V 5531 0
31° 138.8% 99.8% 99.8% 0.88V 4750 0
18° 138.8% 99.8% 99.8% 0.94V 4688 0
18° 138.8% 99.8% 99.8% 0.94V 4625 0
18° 138.8% 99.8% 99.8% 0.94V 4750 0
18° 138.8% 99.8% 99.8% 0.94V 4781 0
19° 138.8% 99.8% 99.8% 0.94V 4875 0
19° 138.8% 99.8% 99.8% 0.94V 4969 0
19° 138.8% 99.8% 99.8% 0.94V 5000 0
19° 138.8% 99.8% 99.8% 0.94V 5094 0
19° 138.8% 99.8% 99.8% 0.94V 5156 0
20° 138.8% 99.8% 99.8% 0.94V 5219 0
21° 138.8% 99.8% 99.8% 0.94V 5250 0
21° 138.8% 99.8% 99.8% 0.94V 5344 0
21° 138.8% 99.8% 99.8% 0.80V 4906 0
41° 138.8% 99.8% 99.8% 0.86V 4844 0

edit: added knock

 

[DSMcamaro]

are we to assume you have 0 knock the entire time ?

yea, i logged knock but forgot to put it in with the rest. my knock was 0 all the way through except right after shifting for 2 counts it was 11.

 

[DSMcamaro]

idle/close to it.

why would i be lean? with the 190 and no AFP regulator you would think i would be rich?
timing---FTL---FTM--FTH---O2r---RPM
11° 139.6% 99.8% 99.8% 0.64V 1031
11° 138.8% 99.8% 99.8% 0.78V 1031
11° 138.8% 99.8% 99.8% 0.80V 1031
12° 138.8% 99.8% 99.8% 0.80V 1063
12° 138.8% 99.8% 99.8% 0.82V 1063
12° 138.8% 99.8% 99.8% 0.82V 1063
13° 138.8% 99.8% 99.8% 0.80V 1031
15° 138.8% 99.8% 99.8% 0.59V 1031
15° 138.8% 99.8% 99.8% 0.21V 1031
15° 138.1% 99.8% 99.8% 0.12V 1000
15° 138.1% 99.8% 99.8% 0.06V 1000
15° 138.1% 99.8% 99.8% 0.06V 1000
14° 138.1% 99.8% 99.8% 0.06V 1000
13° 138.1% 99.8% 99.8% 0.06V 1000
13° 138.1% 99.8% 99.8% 0.06V 1000
12° 138.1% 99.8% 99.8% 0.08V 1000
13° 138.1% 99.8% 99.8% 0.08V 1000
13° 138.1% 99.8% 99.8% 0.06V 1000
13° 137.3% 99.8% 99.8% 0.08V 1000
13° 137.3% 99.8% 99.8% 0.31V 1031
11° 137.3% 99.8% 99.8% 0.68V 1031
12° 137.3% 99.8% 99.8% 0.80V 1031
12° 137.3% 99.8% 99.8% 0.80V 1031

 

[90blacktsiawd]

I myself have a 190lph pump and no AFR an my low trim looks something like yours. Well it did till i bumper up the fuel 10% at idle on my maf-t. You need something to make fuel adjustments to fix the problem. And don't be offended I'm not saying your dumb but since you were alittle mixed up on the fuel trim being rich/lean check out this article it explains a good bit about fuel trims.

http://www.pocketlogger.com/index.php?pid=1gtech_trims

 

[DSMcamaro]

I myself have a 190lph pump and no AFR an my low trim looks something like yours. Well it did till i bumper up the fuel 10% at idle on my maf-t. You need something to make fuel adjustments to fix the problem. And don't be offended I'm not saying your dumb but since you were alittle mixed up on the fuel trim being rich/lean check out this article it explains a good bit about fuel trims.

http://www.pocketlogger.com/index.php?pid=1gtech_trims

thanks, hopefully i can get on the right track now and pick up a translator in the near future.

 

[90blacktsiawd]

Not a problem glad to help

 

[DSMcamaro]

so i turned the boost up to 18psi and got alot of knock. try it at 16psi?
2nd and third gear pull.
timing..FTL..FTH...RPM..knock
37° 139.6% 99.8% 2750 0
37° 139.6% 99.8% 2750 0
37° 139.6% 99.8% 2750 0
37° 139.6% 99.8% 2781 0
37° 139.6% 99.8% 2750 0
37° 139.6% 99.8% 2781 0
37° 139.6% 99.8% 2781 0
35° 139.6% 99.8% 2813 0
34° 139.6% 99.8% 2813 0
33° 139.6% 99.8% 2844 0
32° 139.6% 99.8% 2875 0
32° 139.6% 99.8% 2906 0
32° 139.6% 99.8% 2969 0
31° 139.6% 99.8% 3000 0
31° 139.6% 99.8% 3031 0
31° 139.6% 99.8% 3063 0
31° 139.6% 99.8% 3125 0
31° 139.6% 99.8% 3125 0
31° 139.6% 99.8% 3188 0
29° 139.6% 99.8% 3250 0
28° 139.6% 99.8% 3281 0
27° 139.6% 99.8% 3375 0
27° 139.6% 99.8% 3438 0
26° 139.6% 99.8% 3531 0
25° 139.6% 99.8% 3594 0
22° 139.6% 99.8% 3688 0
19° 139.6% 99.8% 3781 0
17° 139.6% 99.8% 3938 0
18° 139.6% 99.8% 4094 0
18° 139.6% 99.8% 4219 0
18° 139.6% 99.8% 4438 0
18° 139.6% 99.8% 4656 0
18° 139.6% 99.8% 4781 4
17° 139.6% 99.8% 5094 4
17° 139.6% 99.8% 5125 4
18° 139.6% 99.8% 5219 3
19° 139.6% 99.8% 5313 3
20° 139.6% 99.8% 5500 3
21° 139.6% 99.8% 5563 3
21° 139.6% 99.8% 5656 2
22° 139.6% 99.8% 5781 2
24° 139.6% 99.8% 5906 16
18° 139.6% 99.8% 6094 17
18° 139.6% 99.8% 6063 17
19° 139.6% 99.8% 6250 17
19° 139.6% 99.8% 6281 20
15° 139.6% 99.8% 6313 20
16° 139.6% 99.8% 6375 20
24° 139.6% 99.8% 6313 13
41° 139.6% 99.8% 6125 0
45° 139.6% 99.8% 5875 0
45° 139.6% 99.8% 5656 0
30° 139.6% 99.8% 6219 0
30° 139.6% 99.8% 5063 0
19° 139.6% 99.8% 4250 0
18° 139.6% 99.8% 4438 0
18° 139.6% 99.8% 4469 0
17° 139.6% 99.8% 4531 7
15° 139.6% 99.8% 4656 7
15° 139.6% 99.8% 4719 7
16° 139.6% 99.8% 4781 6
17° 139.6% 99.8% 4844 6
17° 139.6% 99.8% 4844 6
17° 139.6% 99.8% 4938 6
17° 139.6% 99.8% 4969 6
17° 139.6% 99.8% 5031 5
17° 139.6% 99.8% 5094 5
18° 139.6% 99.8% 5188 5
18° 139.6% 99.8% 5219 5
19° 139.6% 99.8% 5281 4
20° 139.6% 99.8% 5375 4
20° 139.6% 99.8% 5344 4
20° 139.6% 99.8% 5406 4
20° 139.6% 99.8% 5438 6
20° 139.6% 99.8% 5469 12
17° 139.6% 99.8% 5656 12
18° 139.6% 99.8% 5688 12
18° 139.6% 99.8% 5719 12
17° 139.6% 99.8% 5719 19
17° 139.6% 99.8% 5719 18
16° 139.6% 99.8% 5813 30
15° 139.6% 99.8% 5969 31
14° 139.6% 99.8% 5875 31
13° 139.6% 99.8% 6000 31
16° 139.6% 99.8% 5969 30
18° 139.6% 99.8% 6063 37
17° 139.6% 99.8% 6031 43
12° 139.6% 99.8% 6063 43
8° 139.6% 99.8% 6125 43
12° 139.6% 99.8% 6125 42
15° 139.6% 99.8% 5875 38
32° 139.6% 99.8% 5625 23
37° 139.6% 99.8% 5344 9
42° 139.6% 99.8% 5188 0

 

[WhiteTsiAwd]

Well I have never used a MAFT but from what I hear and have read, they are worth buying. I do however have a lot of experience with an AFC and I love it. If you wanted to get really fine tuned, then you could run both at the same time, but If i were you I would just buy the AFC.

Also, turn the boost down to 16 or 15 like it was before and leave it at that until you can get something to tune with.

Good Luck.