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Premium tyre maker #hankook and the #dtm enter the final third of the 2017 season at the Nürburgring this weekend. The iconic circuit is the venue for races 13 and 14 in what is probably the most popular international touring car series, and the battle for the Drivers’ title has rarely been more exciting. Key to success in the Eifel Mountains will be the correct management of the race tyre, provided by the exclusive #dtm partner, and a pit stop strategy tailored perfectly to the racetrack and the car set-up. It was this that allowed Loic Duval (Audi) to climb from 13th on the grid to finish runner-up last time out in Zandvoort: the Frenchman completed 26 of the 37 laps on one set of the Ventus Race – the longest stint by any of the drivers, and one that earned him the first podium of his #dtm career.
Nürburgring/Germany, 4th September 2017 – The asphalt on the shorter, 3.629-kilometre layout of the Grand Prix Circuit at the Nürburgring is fine-pored, meaning it offers a low level of grip. As it is no longer permitted to pre-heat the #hankook slick, the drivers must get the race tyre up to the optimum working temperature as quickly as possible, in order to achieve the grip levels required to allow the perfect lap. “The #dtm drivers use higher tyre pressures, combined with greater cambers, to try to quickly bring the #hankook race tyre up to the ideal working range of between 90 and 110 degrees. Similar measures are necessary when the air temperature in the Eifel region is very low, as it often is in September,” explains Hankook’s #dtm race engineer, Thomas Baltes.
The layout of the iconic circuit is varied, with fast passages alternating with slower sections. The lap starts from the highest point on the circuit, where the cars reach their top speeds of around 240 km/h on the long straight, before decelerating down to 75 kilometres per hour into the first, steeply-banked right turn. Thomas Baltes: “The track surface is very bumpy at that point. As such, it is difficult to get the braking point spot on. In the race, a balanced set-up and a slightly lower tyre pressure can make the car smoother and more stable in this area.”
From there, the drivers head into the narrowest section of the track, with the longest corners. Here, Hankook’s Ventus Race must demonstrate its high level of grip, in order to allow the drivers to accelerate rapidly out of these sections. The kerbs are not as aggressive as the high and damaged kerbs experienced in the last two #dtm races in Zandvoort three weeks ago. The running surface and construction of the race tyre are put under far less strain at the Nürburgring than at the circuit in the Dutch dunes.
Experience has shown that the unpredictable weather can also play a major role at the Eifel classic. In the past, very few #dtm race weekends have passed without experiencing rain on at least one day. Fog and sudden hail storms are also far from a rarity at the Nürburgring. “When it rains, you very quickly get standing water on the track. The drivers must be ready for that. However, with the correct air pressure, the #hankook wet tyre will offer the drivers optimal support on the wet track,” says the #hankook #dtm race engineer.
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