o2 volts - datalogging

[blue92laser]

Hey whats up? It seems to be that this talon my boy and I have been working on has finally come together enough to tune it. I need to know what type of timign advance and o2 sensor volts I should be looking for.

91 eagle talon
.20 over motor on 2g pistons
255lph fuel pump
3inch dowpipe 3inch from the cat back no cat
upper intercooler pipe
660cc injectors
5 knob afc
a/f guage worth shit
no egt
big 16g turbo set @ 20psi
ported evo3 housing
pacesetter tubular manifold (which hasnt cracked nor do we think it will)
1g manifold
1g head with cams
NO AFPR

I know we need the fpr but we just havent found one yet

I need to know what type of o2 volts im looking for around what range? and the type of timing advance I should have while WOT

We have a logger and right now on 93/110 mix its puling no knock and advancing to over 25 degrees and the volts on the o2s are stady at .84

Any input would help, thanks.

 

[dnhieu]

is thier anyway you can post a log? that timing advance is kinda high. i wouldnt like to see anything past 21 timing advance but thats just me. too much timing can lead to bad things

hope that helps
david

 

[Quasimondo]

25 seems high, but if you're not knocking, then you're good. Same goes with the O2 gauge, though you really shouldn't use that to determine your state of tune.

You should back the timing back down to 21 or so when you run straight pump.