Quote:
Originally Posted by DarkSunrise
Yeah funny thing - I didn't actually set out to build a track tune, but it's going down that path isn't it? I figure since I have my logs from my hottest track days, why not build a tune that's as safe as I can get it.
For my latest tweaked v2.076 map, I basically took the log you just saw and:
1) Took out 0.5 x FLKC values from base timing B at loads above 1.00 g/rev, ignoring all FLKC under -0.69.
2) Threw in slightly more aggressive IAT timing comp.
3) Added a little coolant-based timing comp.
4) Leaned out the commanded AFR a little. I know this one is counterintuitive, but I was pegging the o2 sensor rich (11.25) on some of my logs from last year.
If this gets me track logs with FLKC and KC at -0.69 or below (and AFR holding ~12 to redline), I'll be pretty happy.  |
sound like you have a pretty good handle on it. I'm sure you already know of the tradeoffs you're making having your ignition advance tables set as conservatively as you have. Though it would be pretty awesome if you can get all the compensation tables dialed in so that you'd have max power (max ignition advance, perfect afrs, etc.) under all situations across the entire range of temperatures and loads along with minimal knock corrections for a given set up. At least we try to get as close to that level as we can without wasting too much time staring at logs, flashing then reflashing the ECU.
Another thing to consider between the 2 OTS tunes is the cam timing, though you'd probably have to throw it on a dyno to really see what's what.