Hello. I’ll make this quick, so I started with the 2.2 base cal that comes with the software download, considering the lack of a better option. Since I don’t know everything there is to know about this software just yet. I’ve got it dialed in to the point that casual driving in say 3rd or 4th gear, I’m seeing 14-14.5 on my AFR. Just the gauge, not hooked up to the ECU itself yet. Planning to do that very soon. Looking for some advice with tuning on the ap1, doing my best to be careful while learning this. I’ve blown up a dseries or 2 in the past, but my b16a made boost and to this day after selling is still running the tune I made for it, goin strong. I’m dipping my hands in this with the genuine desire to learn more about tuning. And soak up some knowledge. When I press the gas I’ve got good response, no power cuts, and it may still be a tad rich, but not so bad that I’m still getting good power and good vtec engagement. Does anyone have an AP1 map that they use or could show me where to find one to compare my own to it?my car is NA currently with stock ap2 injectors, darton dry sleeved with eagle rods and cp pistons. Stock compression, finished break in, runs great.

 

• Reduce your timing 5 degrees globally, so in your whole whole ignition table (other than the idle 600-1250RPM & 0-40kPa zones) - you can add timing back once you dial in your fueling and it is safe to drive.

• At Idle 14.7-15.3 AFR
• In Cruise 14.7-15.3AFR
  • Careful if you have a cat, enabling/tuning in lean-burn (15.0-15.5 AFR(for gas savings)) increases EGT temps so running 15.3AFR could be damaging to your cat over time and in hot weather when EGTs are high.
• For Tip-In aka Acceleration-Enrichment try targeting 13AFR for a good throttle response
  • Don't waste your time trying to hone it in perfectly, concentrate on how it feels that's more important
    • As you rapidly go WOT, if it feels like you've hit a wall/hiccup followed by power - you're too lean on tip-in
    • As you rapidly go WOT, if it feels doughy/lazy followed by power - you're too rich on tip-in
  • If tune is really well dialed in you might not even need tip-in fueling above 4000rpm
• For WOT at 80-100kPa absolute target 13AFR
• For WOT above 100kP absolute (0+ PSI, so in boost) target 12AFR or to be on a safe side I target 11.5-11.8AFR
  • I do that because I don't have O2 for every cylinder, what we see is an average of all 4 cylinders
    • By targeting more safe 11.5-11.8AFR I am compensating for potentially one or two cylinders running leaner due to tired/dirty injector(s)
      • You're also cooling combustion temps more that way, more room for error such as over aggressive ignition timing or a bad tank of gas

I highly recommend setting your rev-limiter at 6500RPM, disabling VTEC, tuning your low cam, then turning your VTEC back on and tuning the high-cam.

Finally, for a road tune, you'll need help with histograms. I recommend MegaLogViewerHD paid version.

Good luck.

 

Sage advice as always EOE
My tune is like how you recommend it to be (including AFR 11.5 to 11.8 at WOT in boost). Cruise at 14.7 - 15.0.

The only thing I need to do now is adjust my VTEC engagement fueling (4500rpm) at WOT. It hesitates for a split second then picks up hard again. Too much fuel at that point.