Lost in Logging! Help me with my log please

[spoold]

Ok heres yet another log i pulled tonight. This was in slightly cooler weather than normal (being night time)

I currently have my setting's really half-assed on the afc2. Can anyone tell me where i need to add and where i need to subtract some fuel please? Any input whatsoever? 560 cc injectors, 255 lph, evo3 16g, FMIC short routed, all supporting mods.

19-18 psi

RPM o2v timing
2552 .79 23
2648 .91 20
2788 .91 16
2940 .91 14
3076 .93 10
3236 .95 8
3440 .97 6
3612 .95 7
3832 .95 8
4072 .95 9
4280 .93 9
4504 .93 9
4716 .93 10
4948 .93 11
5160 .91 12
5408 .91 12
5596 .91 12
5788 .91 12
5988 .89 13
6192 .89 11
6356 .89 11
6552 .89 12
6712 .89 11
6832 .89 11


should i be reaching near 18 degrees up top? Why am i noweher close? The base timing is set correctly at 6?

Any help please!

 

[eclipsegsx1736]

Hmm..this log isn't as good as your others. I suspect, as you mentioned, that the colder night air is causing part of the problem. In colder air, the boost will typically be higher if the setting wasn't changed on the manual boost controller, usually 1 psi or so. Also, colder air will cause you to run slightly leaner. You're too lean up top, as shown by your lack of timing, and also verified by your O2 volts (although never use this as proof). I would add fuel starting at 5k or low 5000s, and all the way up to redline. I would start with +2, and do another log. You MAY be able to take a very slight amount of fuel out below that, but definitely don't try it until you have a clean log. If possible, try to post another log in the same weather conditions with the new settings, so we can see if it's improving.

 

[spoold]

Well i took 2 % out across the board today, judging from my other logs, i thought it would be safe. However, someone messed with the afc and i totally lost all of my settings. I will report back tomorow with another log from tonight.

 

[spoold]

update: same weather. added 2% 5k and up

rpm 02v timing
2688 .93 20
2776 .93 17
2900 .93 14
3032 .93 10
3160 .97 8
3324 .97 7
3488 .97 5
3656 .97 6
3880 .97 8
4076 .95 8
4324 .95 8
4504 .95 8
4728 .95 9
4908 .95 10
5120 .95 10
5308 .93 11
5540 .93 12
5728 .93 13
5924 .93 12
6112 .91 13
6284 .91 12
6464 .91 12
6652 .91 12
6808 .91 12

 

[spoold]

safc2 settings (hi th)

1k 1600 2400 3k 3400 3800 4400
-15 17 -17 -16 -16 -17 -17


5000 5600 6000 6600 7000
-16 -15 -13 -13 -12

 

[eclipsegsx1736]

So you're saying your settings are wrong now, since someone messed with the SAFC? Because it looks like it still needs more fuel up top starting at around 5600 or so this time. The log was slightly better, but still off. Also, I just saw your last post. Your settings seem to be on the rich side, but the log seems to say otherwise. See what other people say about it just to be safe, as I don't have as much experience tuning larger injectors.

 

[spoold]

Thanks alot for the help, ill try again tomorow evening and add another 2%.

Im beginning to think its my stock FPR killing me up top, not the injectors. I have a walboro 255 re wired and the 560's, seems like i shouldnt have to pull that much up top

 

[TSiWarrior]

bring your car over my house and we'll plug her up to the wideband and see what we can figure out

 

[Spoolin4Ever]

A stock fpr; i thiught that was a total no-no with a 255? Maybe this an example of why..?

 

[spoold]

what he said ^

Im almost fed up with my setup, i bought an Aeromotive AFPR setup. Im pretty sure im encountering fpr overflow here. theres no other reason i can think of for these logs to look so shatty every time

 

[hottboost]

You are probally overrunning the stock FPR. I would do the fpr, set to 43psi. Also take advantage of the wideband, it will make your life alot easier. Good luck!

 

[scottsee]

It's possable, I was over running my fpr with a stock rewired 2g pump. I have the Dsmlink logs to back it up... I couldn't get my LTFT's anywhere close on stock injectors & Maf.