gregrob

iTrader: (8)

Ok, we got the cable and scan software working. HUGE thanks to Bob @ www.aldlcable.com

We went out for a few runs and here are a few things I noticed. Give me your opinions.

10 deg of spark retard max wot, 4-8-10 as rpm climbed
02 sensor mv = 897-910 max wot
spark advance = 38 deg max wot
AFGS 200max wot

gregrob

iTrader: (8)

Another question, is there a conversion for 02 mv > A/F Ratio?

I read you want to be high 800's or right at 900 for a N/A car, so this tune looks good. Just wonderin what A/F that corresponds to.

96capricemgr

iTrader: (1)

narrowband O2s are not accurate at that AFR but the narrowband O2s will often report 880-920 on a properly tuned car. THIS IS NOT RELIABLE ENOUGH TO TUNE OFF OF.

Ditch the Granatelli. That AFGS number is way low, probably inaccurate reporting, my old L99 would pull more air through a 3" b-body MAF.

Is the knock count climbing or is the retard coming in without current knock count accumulation?

gregrob

iTrader: (8)

To clarify: this is part of the log from my buddies 94 Firehawk, not the camaro in my sig. It is all SLP stuff except for an aerofoyle, a/c delete, and bigger maf. (not sure on the brand but not granatelli).

Sorry for the confusion.

I will have to watch the log again to answer your question. If I post my datamaster log can you guys see it?

gregrob

iTrader: (8)

Watched the log again and we didnt get a real good long run but a hard run to the top of 2nd the knock count stayed at 27745 the whole time, and jumped 29xxx when we had to get out of it and back in it.

96capricemgr

iTrader: (1)

Aftermarket MAFs are usually nothing but trouble and on a stockish car are at the very best a complete waste and often just a tuning problem.

gregrob

iTrader: (8)

Ok, he still has the stock maf, we will swap it out and see what happens.

ThoR294

iTrader: (6)

quoted for truth