Forum Discussion

guerck01_online's avatar
2 years ago

"Brake Magic" Button to put Brake Bias to 70%

With tyre temps now affected by brake temps, it is common to trail the brake even on straights in order to warm up your tyres on an outlap or the formation lap.

The "problem" with doing that on your "normal" brake bias: The rear brakes tend to get significantly hotter than the front, leading to an inequal tyre warm up between front an rear tyres. At 55%, your rears are already at like 95-96°C while your fronts are at 86/87.

This has a realistic workaround, which is moving the brake bias all the way to 70%. Especially most competitve league racers to that, but also in career it is handy. This leads to a more equal distribution of brake temps and therefore tyre warmup.

This is very uncomfortable though. With normal brake bias settings usually at +/- 55%, you need to go up 15 (!) clicks on the start of your outlap and then 15 down again when starting the hotlap/race. This is not only very unpractical but also dangerous as your attention then moves from the track to your MFD and you are more likely to impede someone. During SC Restarts it also provides a source for unneeded distraction.

My suggestion: Enable the option to immediately set the BB to 70% when pressing a button on your steering wheel. This would represent Mercedes' "Brake Magic" function, which Lewis famously knocked on at Baku 2021.

It could either be implemented as a control or as an MFD shortcut. You can bind a button to that and if you press it at the start of your warmup lap, the BB immediately goes to 70%. When you press it again at the BB goes back to your original setting and you can start your hotlap or race.

This feature would improve the tyre temp model in both safety and realism, so please think about it 🙂

1 Reply

  • @guerck01_online I second this, would like a toggleable setting for brake bias between predefined (or user-definable, perhaps as part of the setup) values to ensure even tyre warmup. Manually changing it every single click individually is not realistic to be expected to do while driving.

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