Yes these engines are torque based, I noticed in warm weather or when switching the AC it runs higher boost to compensate for the lost power.
As for the diff ratio I am not sure as you are not changing the torque of the engine, we are changing the torque going to the wheels.
Quote:
Originally Posted by Wires
Would you actually get more torque once if you need to code so that it doesn't toss errors? DME does a lot of torque management and throttle cuts. It might software intervene circumventing the gains from the mechanical changes.
I know in "yesteryears" it was what was done, just not sure since the car runs torque targets for power. You might find that it just dials back the boost to keep the torque targets in line.
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