The ensuing rotation points the nose of the car towards the apex. This forward weight transfer causes the front wheels to “bite” and the associated decrease in weight on the rear wheels allows the rear wheels to “slide” resulting in subtle, controlled oversteer. This results in a small amount of forward weight transfer. Breathing off the gas pedal requires a quick, smooth, slight decrease in pedal pressure. To achieve throttle steering without changing your steering angle you must feather the gas pedal prior to reaching the apex. Because your foot is now applying pressure to the gas pedal you have the capability to subtly and smoothly slightly decrease pressure on that pedal. Since your corner entry speed has placed your tyres at or near their grip limit increasing steering angle in any of the above three situations will likely cause the car to understeer. At slower corner entry speeds or less than optimum utilisation of the tyres, you will not be able to achieve controlled oversteer – the mechanism responsible for rotating the car when throttle steering – when you lift off the throttle. Throttle steering requires that your speed during corner entry generates G-forces sufficient for your tyres to be at or near their grip limit during corner entry. This is a critical point as throttle steering requires that you maintain throttle input throughout corner entry.
The application of the throttle during corner entry is critical as throttle steering is not possible if you are “coasting” – meaning you›re neither on the brake nor the gas. This means that your speed at the turn-in point is the same as your speed at the apex. As you progress beyond intermediate you learn to apply “maintenance throttle,” so that car does not decelerate at all between corner entry and apex.
#Novice drivers often to decelerate driver
In high performance driver education, novice and intermediate drivers are instructed to make a smooth rotation of the steering wheel on corner entry and mild constant throttle from corner entry to the apex. Throttle steering allows for faster cornering speeds and earlier acceleration coming out of the corner. (This differs from “power oversteer” – a technique applicable to high horsepower cars – that induces oversteer by increasing pressure on the gas pedal). Throttle steering is a technique that allows you to rotate the car in a corner, independent of the steering input, by releasing a small amount of pressure on the gas pedal.
In order to avoid understeer the intermediate driver may need to limit his corner speed prior to the apex to allow for sufficient steering angle to hit the apex. At the novice and intermediate level the only way you can rotate the car is to turn the steering wheel. Every time you change the direction of travel you do so by rotating the car around a point in the centre of the car.
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