My current setup is a 2011 M6 Camaro ls3, with stock unported heads, LTH, CAI, 235/248 111LSA 109.5ICL cam (19.5* overlap at .050). Before purchasing hptuners, when my "tuner" finished with my car, WOT was great as was expected, but car drove terribly everywhere else (VVE table was untouched, and MAF was still set to be used at 4k rpm). After dialing in the VVE and disabling MAF, drivability was still pretty terrible (bucking and surging everywhere below 2.5k). After trying infinite changes to spark tables and basically anything else most commonly used to tame big cams, i found the only thing to get it driving well was to command around 13.5 in open loop everywhere. That is where I am at now, 02's disabled and staying in full time open loop/speed density, targeting .926 Lambda at everything besides WOT. Car drives factory smooth at 1200-1300, super unhappy at 1500-1600, and slight surging from 1600-2000. Besides slight fuel mileage differences, is there any negatives to running this rich all the time (Car is my DD for the time being). Also, I've been having issues chasing my tail with lean and rich spots in the VVE table, as you can see from the step log I am on. I changed map and rpm zone boundaries to make more sense, but all that did was change where the lean/rich spots were. I am not sure if my slightly off VVE table or transient fueling is causing my rich tip out an lean tip in (sometimes rich tip in as well, just depends on my car's mood). If anyone can answer my first question, or look over my tune/log and give me pointers to help answer my other questions, I would be extremely grateful. Happy New Year everyone!
VVE tuning step 25.hplAZ starting tune.hpt