Injector resize "Smart Adjust"
Posted: Wed Jul 15, 2020 11:14 am
Trying to figure out a few issues, thought I would throw up a quick post.
The simple part is what is the benefit of the injector resize smart adjust feature? Seems to create some funky K/TIM numbers that would skew the whole show.
Hard part is I am trying to figure out why my ecu is wanting to hang onto closed loop/apply trims when well into boost. Inconsistent to a degree but I am able to replicate with a shift from 4th gear to 5th gear and applying full throttle. Happens 4 out of 5 times. I have tried to do my injector resize/maf resize and load scales to all comply with "keeping close to factory TP indexing". I have also tried factory rb25 fuel and ignition load scales. WOT max load hits 100-104TP. "0 boost area" is 46-50TP or so.
R33 GTS25T Skyline
FMIC
Exhaust
ID1050X injectors/Radium fuel rail/Walbro 450 Pump/Aeromotive FPR
HPX-N1 Maf in custom housing, 31% Scaling
Please note tune is far from complete, still working through tuning and upgrades before dyno session.
Please see attached Log and Tune file.
Reference Log at 36 to 40 seconds, note climbing afr well outside of closed loop and trimming there.
Still also have throttle transition richness/stutter/misfire that i cant seem to get rid of. Have tried lots of things and I am REALLY not wanting to give up on Nistune but it is getting exhausting. Hopefully I can get some more insight.
Thanks for all the hard work and support.
John
The simple part is what is the benefit of the injector resize smart adjust feature? Seems to create some funky K/TIM numbers that would skew the whole show.
Hard part is I am trying to figure out why my ecu is wanting to hang onto closed loop/apply trims when well into boost. Inconsistent to a degree but I am able to replicate with a shift from 4th gear to 5th gear and applying full throttle. Happens 4 out of 5 times. I have tried to do my injector resize/maf resize and load scales to all comply with "keeping close to factory TP indexing". I have also tried factory rb25 fuel and ignition load scales. WOT max load hits 100-104TP. "0 boost area" is 46-50TP or so.
R33 GTS25T Skyline
FMIC
Exhaust
ID1050X injectors/Radium fuel rail/Walbro 450 Pump/Aeromotive FPR
HPX-N1 Maf in custom housing, 31% Scaling
Please note tune is far from complete, still working through tuning and upgrades before dyno session.
Please see attached Log and Tune file.
Reference Log at 36 to 40 seconds, note climbing afr well outside of closed loop and trimming there.
Still also have throttle transition richness/stutter/misfire that i cant seem to get rid of. Have tried lots of things and I am REALLY not wanting to give up on Nistune but it is getting exhausting. Hopefully I can get some more insight.
Thanks for all the hard work and support.
John