Help give input to my tune/scans- OL AutoVE/AutoMAF

[ddnspider]

So I just completed some AutoVE/AutoMAF rounds. Attached are the tunes in open loop as well as the latest round of logs. The biggest thing I noticed is that the VE table is rough, and there appears to be a hole where the car goes lean or really rich when I go to start rolling from a stop. I am almost wondering if I'm being fooled by the wideband showing the lean spots and its actually rich but the unburnt fuel makes it look lean. Comments suggestions welcome. After these are cleaned up I will be scaling the tune so I dont max out the max Hz/airflow.

Short list of mods:
1998 TA
V2 using serial wideband
Heads/cam/forged 383
T76 Turbo kit
T56/Ford 9"
60# injectors with dual walbro's and boost referenced FPR
Just installed an LS7 maf in a 4" tube for these tunes/logs.
7-2-13 open loop MAF_.tun7-2-13 open loop SD.tunls7MAFlogopenloop3.efils7SDlogopenloop3.efi

[ddnspider]

Bump!

[joecar]

I was looking at your files but I ran of of time, sorry... I'll continue looking today.


I take it the MAF log is from the MAF tune, and the SD log is form the SD tune...?

[ddnspider]

I was looking at your files but I ran of of time, sorry... I'll continue looking today.


I take it the MAF log is from the MAF tune, and the SD log is form the SD tune...?

Yes sir, I tried to make them easy to follow

[BLK02WS6]

Sorry I haven't had time to look at these - I'll try tonight...

[ddnspider]

Thanks for taking the time Bret/Joe, always appreciate someone more experienced giving their input.

[joecar]

The PCM is pegging the MAF (i.e. airflow is hitting the 512 g/s limit).

MAP is only reaching up to 103-104 kPa, is this correct...?

WO2EQR1 shows you're still richer than EQIVRATIO throughout... and so much so at load that it looks like you're getting rich knock...

I think you're burning the mixture (and it's overly rich)... what you said about the wideband showing lean happens during a misfire where the mixture does not get burned at all (a non-burn is different than a rich burn).

[ddnspider]

The PCM is pegging the MAF (i.e. airflow is hitting the 512 g/s limit).

MAP is only reaching up to 103-104 kPa, is this correct...?

WO2EQR1 shows you're still richer than EQIVRATIO throughout... and so much so at load that it looks like you're getting rich knock...

I think you're burning the mixture (and it's overly rich)... what you said about the wideband showing lean happens during a misfire where the mixture does not get burned at all (a non-burn is different than a rich burn).

correct, the maf is pegged. Once I get everything dialed in I will the scale the tune to avoid maxing it and continue with the upper rpm tuning with the maf.

It is a single bar stock map since its a 98 PCM. Again, will be setting the airflow threshold to something low like 2500rpms and let the maf do the work.

Good to know about being rich, well not good, but you know do you think that's the case with the VE table in the 30kpa column? It seems like the VE is rather high in just a couple cells compared with everywhere else.

Does it seem like I'm on the right track and just need to keep dialing in the VE and maf tables?

[joecar]

Are you pasting/multiplying the WO2BEN map into the Backup VE table...?

[ddnspider]

Are you pasting/multiplying the WO2BEN map into the Backup VE table...?

My understanding was that the BEN's are percentages so I was manually going into the VE and maf tables and manually adding/subtracting the percentages based on the BENs.