Hello,
I am struggling with idle control with this particular setup.
2015 Mustang GT M6
Edelbrock 2650 Supercharger Kit
Edelbrock CAI
Edelbrock 103MM TB
Modular Head Shop Supercharged Race Camshafts
Part Number MHS-50-BLR
Name 5.0L Coyote Race Blower
Duration @ .050" 236 / 242
Lift .512" / .512"
Lobe Sep Angle 115 + 4
Center Lines 111 / 119
RGR Engines VCT Adjustable Lockouts
MHS/Pac Racing Stage 3 Valve Springs
Fuel Injector Clinic 1440 Injectors IS403-1440H
Twin DW400 Fuel Pump Return System
OBX Long Tube Headers
I will start off by saying the Tri-Core PCM does not have any idle airflow tables other than 33065 ETC Idle Throttle Angle Expected vs Airmass.
Screenshot (17).png
Comparing to the Copperhead PCM (2012 Mustang GT M6), there are a number of available tables to adjust for Idle Airflow
Screenshot (16).png
With that being said, With this set of cams the vehicle will not run or idle steadily with less than 11 degrees throttle angle and 5 degrees ignition timing. They require quite a bit of air at idle to run correctly. On the Tri-core PCM to get the car to run and idle, I adjusted 44363 ETC Predicted Throttle Angle and used the ETC Effective Area Calculator in VCM Editor. It's not pretty, but it got the vehicle running.
Video Clip of it idling https://youtu.be/bes34SSt7bU
Now, I'm dealing with RPM control issues. It will idle around 880-1030, then occasionally it'll climb. You'll also see in Idle Speed Control Mode that it will switch between RPM Ctrl and RPM Ctrk No Learning. It's most likely related to what I had to do to get the vehicle running.
IPC errors started at 1500-2500 swinging. I adjusted Torque Tables 14 (VCT Disabled), Throttle Tables, Idle tables increasing error and corrections, Increasing Idle throttle angle, Driver Demand, and got the error to drop to 780-920 range. I tried adjusting speed density, but no improvement.
When I rev the engine, IPC goes straight to zero and revs up just like any other coyote, nice and in control. It's just idle that's the problem area.
The question is, with this particular setup and limited idle airflow tables, will the vehicle always have IPC error at idle and be fine everywhere else or is there an area I'm completely missing?
I attached the Log, Last tune file I left off with and the base I started with.
2015-Mustang-GT-MHS-Supercharged-Race-cams-IPC-error-high-at-idle.hpl
2015-Mustang-GT-MHS-Supercharged-Race-cams-ipc-errors.hpt
2015 Mustang base file.hpt
Any input or direction would be greatly appreciated. I definitely feel like I am butchering the calibration
Thank You.
Robert