UPDATE 28 JUL 2016:
This is resolved. I had to set WOT Start/Stop to stock 1023/1023 so the ECU looks to driver demand for figuring out boost. I modified the last row of driver demand, but I'm still not positive this has a direct correlation with increased scheduled torque as a source for boost calculations. Torque Rate Limit under Trans -> Torque Mgmt should be disabled and the Upper Limit all set to a high value (like 10,000). This was the torque limiter that kept eluding me after I had increased all of the other ones I found.
Original post:
With the latest 13+ SHO updates, I'm able to increase the desired torque but not the actual boost. I found out inadvertently that if I go into SPORT mode, the ECU uses all the stock settings so I'll never try to command more than 350 ft-lb of torque. Years of driving the stock SHO made it a force of habit to shift into SPORT to get the right throttle response. If I keep it in DRIVE, I'll have terrible throttle response but it will command the correct torque.
That said, I did several WOT runs today and ran into a situation that I think many have encountered before.
Torque Source: Engine Indicated Torque Limit
Driver Demand Limit Source: starts off No limit Active, then goes to Combustion Stability Limit, and finally Insufficient Fuel Flow.
Throttle Angle Source is always: TQ Red. < Driver Demand
When I first start WOT, the boost levels climb to what I expected but quickly dip down once the limit sources kick in.
My fuel pressure during the entire run never dipped below 2000 psi. What do the DD Limit Source messages really mean?
For Combustion Stability Limit, there's only 3 settings I see: Max MAP (maxed at 65 inHg), Max Brake Torque, and Max Brake Torque w/ Spark Limit and they're maxed.
Looking at my TIP values: TIP Desired was 23 psi and TIP Actual was 24.2 psi where the boost pressure stabilized.
Turbo Massflow was 38.42 lb/min, whereas Desired Massflow was about 50 lb/min (commensurate with the demanded torque).
Where settings/sections do I need to examine to correct this?
FWIW, today was hot at 95F ambient. My Trans fluid temp is 207F (non-PP so no aux aux cooler), and Air Charge Temp peaked at 150F, with IAT at 104F.