Trail braking?
08-12-2020, 06:23 PM
#33
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usrodeo4 (08-14-2020)
08-13-2020, 12:21 AM
#34
Racer
Trailbraking is necessary to be fast in a 991 just like in any other traditionally-setup car. As has been said, it's a much finer process now than in older models, but I do not think it's RWS-related - it's more about 991 being more like a mid-engined car, which reward very gentle trailbraking too. Think of it as braking to adjust the line rather than to lose the speed. Most corners you need to cover the brake with the slightest force almost all the way to the apex, but it's not really braking to slow down. It's not really "counterintuitive" or working the electronics - it's actually closer to other cars, particularly non-abs cars, where trailbraking has to be super-light. Just look the video linked above starting at about 2:06 - the same super-light brake pressure all the way to the apex in a completely mechanical Radical.
Overlapping the throttle with the brake is not needed. What it essentially accomplishes is shifting brake bias forward dynamically (because throttle defeats rear brake) and thus buying more rear grip on demand. It's helpful if the car is unstable at turn-in or midcorner due to suspension or diff quirks, but electronic diff allows to have these quirks dialed out. Also, 991 delays/smoothens closing of the throttle just a little, reducing the need for two-footed driving.
Overlapping the throttle with the brake is not needed. What it essentially accomplishes is shifting brake bias forward dynamically (because throttle defeats rear brake) and thus buying more rear grip on demand. It's helpful if the car is unstable at turn-in or midcorner due to suspension or diff quirks, but electronic diff allows to have these quirks dialed out. Also, 991 delays/smoothens closing of the throttle just a little, reducing the need for two-footed driving.
08-13-2020, 03:43 PM
#35
Rennlist Member
A good way to visualize and practice trail braking at home is to watch a pro and move your foot to match the brake applied in the video as you watch. Turn the sound up because that will also give you cues. There's a rhythm.
I think for something like rallying, left foot braking is a must (I've only done a couple rally crosses), but it's not as important on a circuit. In the video I don't see much overlap between throttle and brake.
I think for something like rallying, left foot braking is a must (I've only done a couple rally crosses), but it's not as important on a circuit. In the video I don't see much overlap between throttle and brake.
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usrodeo4 (08-14-2020)
08-14-2020, 12:19 PM
#36
Three Wheelin'
Thread Starter
A good way to visualize and practice trail braking at home is to watch a pro and move your foot to match the brake applied in the video as you watch. Turn the sound up because that will also give you cues. There's a rhythm.
https://www.youtube.com/watch?v=bsGpFTJMd0k
I think for something like rallying, left foot braking is a must (I've only done a couple rally crosses), but it's not as important on a circuit. In the video I don't see much overlap between throttle and brake.
https://www.youtube.com/watch?v=bsGpFTJMd0k
I think for something like rallying, left foot braking is a must (I've only done a couple rally crosses), but it's not as important on a circuit. In the video I don't see much overlap between throttle and brake.
