![]() ![]() Applying excessive, sudden throttle in a powerful gear whilst steering (in a rear wheel drive car).Oversteer is a result of one of three driver actions: Oversteer is when a vehicle rotates more than the angle requested by the driver through steering input, most commonly understood as the rear tyres sliding sideways in a bid to overtake the front tyres. If aerodynamics are fitted, increasing the front downforce.Softening the anti-roll bar or front springs.Reducing tyre pressure or using softer tyres at the front of the car.There are also some simple adjustments that can be made to the car to reduce the likelihood of understeering. This is one of those occasions when less means more. Doing so enables the tyres to regain grip sooner and therefore regain control of the car. Therefore, though counter-intuitive, briefly release a little of the steering input at the same time as easing off the throttle. This merely exaggerates the problem as increasing the steering input when front end grip is lost merely increases the slip angle, taking the tyres further from the point where they will regain traction. Unfortunately, it is also an instinctive reaction to wind on more and more steering lock to try and force the car to turn. To regain control, it is necessary to first remove (or at least reduce) the cause.Įasing off the throttle (and braking if necessary), when understeer occurs is instinctive and helps restore grip thanks to the reduction in speed and forward weight transfer pressing the front tyres on to the road. We know this is caused by either excessive acceleration, steering, or speed for the steering angle required and available grip. We know that understeer is a result of the front tyres losing adhesion to the road surface. Cold or wet conditions make this all the more likely of course, whilst a lack of weight over the front tyres when smoothly accelerating too much too early mid-corner also triggers the problem. Turning the steering wheel harshly, abruptly or just too much for the vehicle’s speed versus the available grip will exceed the front tyres’ traction, forcing the nose of the car to slide wide across the road surface in understeer. Understeer happens as a direct result of driver input. the front tyres struggle for traction, causing the vehicle to under-rotate and push wide through a turn. Understeer is when a vehicle turns less than the angle requested through steering input, i.e. Whilst all sports car drivers are familiar with the terms understeer and oversteer, there appear to be many misconceptions as to quite what each term means or just what causes such issues. ![]()
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