Coolant temp was probebly 35deg entry to engine
curve looks fine, ever looked into 5 pot torque figures?
inlet temp needs no "mechanical work" to sustain -20degrees, what would happen living in sweden/norway? Engine disintegrate over winter? Audi did all the development there i think lol

these new 5 pot Audi motors do 600bhp with no internal work and only "bolt on" upgrades so 1000bhp would not be hard with that spec of managment.

amazing engines the new age 5 potter!

Sean