Performance & Race Driving Tip
Speed Secret: Overlap your braking, cornering and acceleration forces.
Last year I was a guest instructor at a car club event the day after I had conducted a seminar for their members. Throughout the day, I rode in the right seat with half a dozen drivers of varying levels of experience and expertise. But there was one common piece of advice I gave them: overlap your braking and cornering, and then your cornering and acceleration.
Okay, to be truthful, I didn’t have to tell all of them to overlap the cornering and accelerating – that seems to be fairly easy for most drivers to get. But overlapping braking with cornering – trail braking – was more challenging. It reminds me of what Mark Donohue once said: “Exiting a corner on the limit is like tightrope-walking; entering a corner on the limit like jumping onto a tightrope while blindfolded.”
At many car club events I find myself in the discussion (argument?) about whether to teach trail braking, and if so, when. While I won’t get into the full details of my opinion here, my approach to teaching novice and intermediate drivers is to have them simply focus on releasing the brake pedal slowly and smoothly. That’s it. There’s no need to get into the minute technical details of why and what to call it – just release the brakes slowly and smoothly. In doing so, of course, the driver is beginning to learn to trail brake, to overlap the braking and cornering. There’s nothing like keeping it simple. And building good, solid habits from the very beginning.
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per the diagram above, can you point to the ideal zone for downshifting
George – After beginning braking and before turn-in (always downshift before turning in – completely, with your foot off the clutch pedal before turning the steering wheel).
Ross
Good point. This applies to what some of my customers have pointed out about the discrepancies they see on their Garmin Catalyst at the corner entry and turnin.
Thanks
Jean Genibrel
Appliedspeed.com
I have been taught that trail breaking is for a turn with a decreasing radius. The idea is to use the initial part of the turn with 50% braking force to get the car to rotate on its axis. This allows the car to re-align to the desired direction of travel. For example, Big Bend at Lime Rock Park Raceway.
Yes, trail braking helps in decreasing radius corners, but that’s certainly not the only place to use it. Pretty much every corner that requires a decent amount of change in direction benefits from trail braking. About the only corners that don’t benefit from it are fast, sweeping corners.