So I've been playing around with my own tune here for some time now and have been pretty happy with it, but now I'm going up in with more load and hit Turbo FMEM on Driver Demand and Torque Airlimit... And I can't figure out why.
Turbo airflow "actual" and desired track pretty close up to about 4800 RPM, where desired starts to climb... Then it starts to bounce off Turbo FMEM (you can see the see-saw action in the desired airload).
The thing is, is turbo airflow limits for overspeed are well over the 37-40LB/min that the log is showing, so what's causing it?
It's controlling the boost normally, MCTs are reasonable enough, TIP does go pretty high (44PSI), but throttle closes and then it stabilizes... It's always done that, even with the stock tune (well, not 44PSI, throttle closure followed the same pattern though).
Is it compressor outlet temp that it thinks it's going over? I don't have time right now to test that, but I will when I get a chance.
Pretty sure there isn't a log PID for compressor outlet temp, so I have no idea where it thinks that's at anyway.
Is there a table axis that might be causing a limit? TIP Min vs Turbo airflow is the only table that once that I see that maxes at 40LB/min, other tables it's already well past their axis upper end.
If I can get this figured out, I think I'll be pretty happy with the setup, at least until a bigger turbo can be fitted.