ignition timing and A/f Options

[ncgalant]

Alright, lets get down to it. I'm looking for power. Given that, which is better, a little richer and more ignition timing, or leaner and less timing? Currently I'm working toward the latter, but want some input from some that run fast.

Also, which is better for spool, lean or rich. I can't get my pre-boost #s into the rich range. If I do a 3rd gear pull from 1500-6500. My O2s will read .08 until 3500 or so when they jump up to .8 and then .9 around 4000. My setup is working, but I want it to be the best it can be. I can post up my SAFC settings if you guys want too. Their F'd up.

[ICGerms]

...If I'm tuning to knock, am I better off with 10 degrees up top and 12.5 A/F or 20 degrees and 11.5:1 A/F....

I think it depends on why you're at 10* when running that lean: if it's being pulled back to that because of knock, I'd either richen it up or turn down the boost. Otherwise, if that's just where it's at (no knock) that might be OK.

I guess the bottom line is that you really want as much timing advance at WOT as you can get without knocking. I've heard people say that they can actually feel their ECU pulling timing because the car has noticeably less power. But, then again, if you've got too much advance that can be bad too (not exactly sure on WHY, though, sorry. I think that you're safe to turn up the boost if you've got 17* of timing or more...I don't recall where I read that, though.