Issues with stutter/timing (pocketlogger)

[Vandy4g63]

Hey guys,

I generally just read this forum (this section particularly) and rarely post, but i'm absolutely stuck here. I've been attempting to tune my Evo3 16g for the past 6-8 months now with limited success.

Relavant mods:
Evo16g w/supporting mods (exhaust, evo02, FMIC, etc.) @19psi
rewired Walbro 255 (non HP)
SAFCII
Pocketlogger
Greddy EBCII


ok My issue is I can't get my midrange timing above 7-9 degrees, and I have absolutely no power after 6300/6400 RPM.

Here is the initial run:
Baseline run
RPM Timing o2
3078 20 0.92
3199 16 0.92
3691 8 0.96
3992 9 0.96
4292 9 0.96
4378 7 0.96
4667 8 0.98
4824 8 0.98
5050 9 0.98
5355 12 1
5460 12 1
5589 13 1
5785 14 1
5960 16 1
6097 16 1
6187 16 1
6238 17 1
6437 17 0.96

SAFCII Settings
1k 2k 3k 4k 5k 5400 6k 7k
-25 -17 -28 -28 -28 -24 -22 -18

with this log I added +4 to 4k and 5k and +2 to 5400 giving me a new setting of:
1k 2k 3k 4k 5k 5400 6k 7k
-25 -17 -28 -24 -24 -22 -22 -18

which gave me the result of:
RPM Timing o2
3074 13 0.92
3195 9 0.94
3363 7 0.96
3621 7 0.96
4050 8 0.96
4214 9 0.96
4582 10 1
4777 10 1
4976 12 1
5265 12 1
5445 12 1
5656 13 1
5828 13 1
6058 14 1
6238 16 1

Now i'm getting more midrange timing but the car seemed to buck a little at 54/55ish (RPM). Any Suggestions?


In the past i've added fuel at the midrange and it only leads to the car "bucking" and struggling to get past that rpm range. I do not have an AFPR.

Thanks!

 

[hellotbone]

Injector size and afpr?

 

[Froyd79]

W/o Cams and or intake manifold your gonna pretty much not make alot of power past 6200. On the dyno thats where my gt30 flatlines and my buddy keeps going with his 272s and a 50 trim.

 

[Vandy4g63]

Injector size and afpr?

haha sorry Denso 660's and no AFPR

 

[Vandy4g63]

Would an AFPR help? Would I want to keep FP stock, or raise it? I'm thinking its running way rich in random spurts that the computer isn't accounting for..