Quote:
Originally Posted by fe1rx
I found the following enlightening, both how our electronically controlled thermostats work, and what the ECU is trying to achieve by targeting different coolant temperatures for different operating modes. The most important observation is that under track conditions we will be operating under "90°C High + map-thermostat mode", which is to say maximum cooling.
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Wow, thanks for that, very interesting.
So the latest MHD patch obviously forces the car to avoid 'normal' and 'eco' modes when you put it in Sport cooling mode, and always stick to "90°C High + map-thermostat mode" when in track mode.
EDIT: or reading the documentation provided above, it simply reduces the temperature targets for each of the different modes.
This (MHD patch) obviously helps for enthusiastic street drivers, but if you're on the track you're going to be limited by the thermal transfer capacity of the radiator rather than the water pump or initial water temperature.