Part 11
More tuning. I made a second longer tuning run in the Santa Cruz mountains above Felton and got the VE table tuned in for higher revs at mid to higher, but not full loads. I have also spent a few more sessions in the garage adjusting the acceleration enrichment.
I have found the dyno tuning did a very good job of dialing in the VE table at full load especially up near red line (6500 rpm). See comparison of current VE table versus the final VE table from the dyno tune:
As for the acceleration enrichment, I overcomplicated my life by trying to blend the MAPdot (kPa/sec) enrichment with the TPSdot (%/sec) enrichment. When I lowered the MAPdot threshold to kick in right off idle with sufficient fuel added, the MAP Accel Enrich would trigger during warm up and the engine sounded way off song. So, I went back to TPSdot enrichment only and then varied the fuel add pulse width and the TPSdot table until I got a good response when I whap the throttle. I need to check this set up with my next test drive.
I have found I need to be patient and continue driving the car in varied conditions with Auto Tune to get good all around driveability while maintaining the WFO performance from the dyno tune session.