I'm having an irritating throttle "overshoot" during tip-in phenomenon that I can't seem to iron out. You can see the log (white trace is throttle body angle and red trace is throttle pedal position).
Screen Shot 2020-11-20 at 5.38.16 PM.png
It causes a "lurching" back and forth during quick throttle applications. You can see it in the log:
Screen Shot 2020-11-20 at 5.37.49 PM.png
Here is what the car has:
2012 GT
Manual trans
Edelbrock supercharger, "Stage 1"
Stock throttle body
Stock MAF
Long tube headers
no cats
The "easy" answer may be there's an issue with the torque model, but torque model changes don't seem to have an effect. I don't have the means to create my own torque model, so I've resorted to plugging in torque models (Edelbrock, Cobra Jet, Roush). Changing torque models doesn't seem to affect it (no better or worse with each).
A few targeted questions:
1) Is there something else I'm missing? Is there a way to "damp" the throttle body angle changes, perhaps?
2) Look at the Wheel Torque Error histogram. There are some pretty massive wheel torque errors. Is this normal?
3) Without a dyno at my disposal, is there a way to do some driving and logging to straighten this out?
I've attached my current tune file as well as the log file.
Any help you can provide is greatly appreciated.
--Wes
Wes 2012 Mustang GT Edelbrock Blower Headers No Cats v011.hpt
Edelbrock drivability throttle overshoot 3.hpl