Worried... Just increased spark timing

[Turbo V6 Camaro]

here's the log i just got tonight 11.5-12psi

www.turbov6camaro.com/hpt

[Matt G]

Originally posted by viper04af:
here's the log i just got tonight 11.5-12psi

www.turbov6camaro.com/hpt

can't wait to go home and see these... no excel or hp tuners on this computer

[Matt G]

viper.. i sent you my .hpl and .cfg files check them out when ever you get a chance thanks

[Turbo V6 Camaro]

yup i got them i'll look them over when i get home
did you look at my scans?

[Matt G]

yeah.. you car has some power man it went from like 30-75 in about 4 seconds

I read over your tutorial and did most of what you showed in it but I don't understand how to adjust the air to fuel ratio, Can you explain that a little better?

I adjusted the KR Attack and decay and subtracted the average KRs in the highway runs from my high octane table, then I smoothed out the table.. it helped out a lot.. i have 3 total KRs showing in my new scan and they average 1 in each cell(I sent you an update)

[Turbo V6 Camaro]

Originally posted by Matt G:
yeah.. you car has some power man it went from like 30-75 in about 4 seconds

I read over your tutorial and did most of what you showed in it but I don't understand how to adjust the air to fuel ratio, Can you explain that a little better?

I adjusted the KR Attack and decay and subtracted the average KRs in the highway runs from my high octane table, then I smoothed out the table.. it helped out a lot.. i have 3 total KRs showing in my new scan and they average 1 in each cell(I sent you an update)

look at the one screen the show's somthing like PE vs TPS i think it is..

when you push you foot down past that number the car enters PE (power enrich mode) all fueling is then controled and calculated by these in referance to IAT, MAF lb/min, and ECT. from that its pulse's the injectors to reach that command AFR from the PE tables.

open you base PE vs ECT table

that is what the PCM is commaning, in a perfect world that would match a Wide Band AFR reading..... but it don't :(

now look at the Add vs RPM vs Time table thos are added to the bas AFR in the other table....

say in the base afr at 180* ECT (engine coolent temp) the value is 12.00 (read 12:1 AFR) and in the add vs RPM its is -1.00

you add those so the pcm will pulse the injectors to get a 11.0 or 11:1 AFR in theroy..... now this is where the Wide Band O2 comes in to see what you are really getting

exapmle i command a 7.5:1 afr and i'm getting 11:1 in real life (all cars and setup will be different)

sorry if this is not exact table names i'm pulling it off the top of my head right now lol

[shenanigans]

yeah a wideband woudl be handy [img]smile.gif[/img] ....

I am showing commanded 11.9-12.6 AFR my narrowbands are int the mid 800s which is showing an "inaccurate" lean condition. So not sure I want to lean the commanded AFR blindly.