Why do NASCAR drivers swerve? Find out the reason here

Why do NASCAR drivers swerve? For fans new to the sport, the unusual scene before a race starts can be translated as a display of the drivers' skills. However, there is a science behind it and several reasons why it is a necessary routine procedure before any race is flagged off. In this article, we look at the various reasons the practice is essential.

Why do racers wiggle? Swerving is a standard procedure practised by racers representing different racing bodies. Drivers make back-and-forth motions before a race begins or during a caution period. Wiggling helps to put the car in its optimum state before a race and is also a safety precaution for the racers. Here is a detailed analysis of the reasons for this manoeuvre.

Why do NASCAR drivers swerve before the race?

The reasons are quite simple: traction, heating the tyres, and the action also removes any 'dirt' from the tyres. The back-and-forth movements are also a precautionary measure and help to keep the tyres, brakes, and track in the best condition. We have analysed and researched the reasons more thoroughly below.

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Heating the tyres

Tyres are a significant part of the race car because they are the point of contact between the vehicle and the track. NASCAR tyres consist of a specialized rubber component that performs optimally at a specific and even temperature.

They have the maximum grip when heated, and the zigzag motion facilitates the process by causing friction between the asphalt and the tyres. Cold tyres have less grip and slow down the vehicle due to instability. Cool tyres are also more sticky, interfering with the driver's speed and navigation.

NASCAR tyres are designed for high performance and can go for 100 miles before dropping in performance. Additionally, swerving helps warm up the brakes so they are in the best condition to control the vehicle's speed. It also affects the steering wheel, which performs better after warming up.

To get rid of marbles

Why do NASCARs swerve? Another reason for the swerving is to remove marbles from the track. Marbles are fragments of rubber balls from the wear and tear of the tyres as the car moves. They collect on the track's edges and create unfit conditions for the racers, sometimes leading to accidents.

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As the race continues, the tyres change in chemical composition, causing the molecules to realign, forming marbles. Cold tyres collect more marble, making it essential to warm them up before a race starts. The debris collected on each track depends on the molecular composition of the tyres, so some might be bigger and more dangerous.

Racers adopted the term 'marble' because driving over them is similar to driving over real marbles that are extremely slippery. They appear as black spots across the race track.

To burn extra fuel

Why do race cars zigzag? Besides removing marble and warming up the various parts, race car drivers also swerve the vehicles to burn the extra fuel in the tank, making the vehicle lighter, faster, and easier to navigate.

Why do race car drivers swerve back and forth during caution?

During a race, it is common to see a yellow flag waved, signalling a warning to slow down due to a hazard on the track. The risk could be an accident or dangerous marble. Sometimes, a caution also symbolizes the end of a stage, also known as a competition caution.

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Like the start of a race, drivers also swerve during caution. This is to remove the marble collected as the race continues so that the car remains at its optimum condition. The procedure keeps the driver and the vehicle safe, helping them to accomplish the race with minimal incidents.

The 'Bell lap'

In conclusion, why do NASCAR drivers swerve? This procedure happens not for the thrill and entertainment but to keep the car, tyres and track in the best condition before the race starts. Different racing associations have other procedures, but swerving is standard for almost all to prevent accidents and enhance the quality of the contests.

READ ALSO: How much does a NASCAR weigh?

Sports Brief published an article analyzing the weight and requirements of NASCAR vehicles. The speed and overall performance of any race car are dependent on its weight and have to be within the set limits to ensure fair play for all racers. What is the required weight of a NASCAR?