Bugatti Chiron Super Sport 300 + 1 became the very first production car to cross the 300 mph (482 km / h) mark in August 2019. The hyper sporty managed to go through 304.773 mph (490.484 km / h) precisely, which made it the “fastest production car” in the world. So how did he manage to achieve this? Read on to find out.
When it comes to reaching speeds as high as 400 km / h or more, increasing horsepower is just not enough, otherwise all Tom’s, Dick’s and Harry’s would set up a JDM and install massive turbos to take out the horsepower, but ramping up is just part of the whole process that requires many fine modifications to the car’s body, engine and chassis, for the car to reach such extreme speeds in a safe and reliable manner. .
One of the first steps in reducing wind resistance at high speeds is to optimize the car’s aerodynamics, and the company’s engineers and designers have spent months finding the optimal aerodynamic balance for the Chiron Super Sport. Which helped them achieve the lowest drag coefficient and maximum downforce. “Only a perfect incoming airflow at the front of the car will prevent harmful turbulence and ensure that the airflow around the car remains clean,” says Frank Heyl, deputy design director at Bugatti.
To further reduce side turbulence, company engineers also installed newly developed air curtains at the front of the car, similar to the fenders. This, according to Bugatti, helps move air around corners optimally (without causing wind resistance).
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To break through the speed barrier, Bugatti also had to increase the overall engine power by 100 PS. Its supermassive 8.0-liter W16 engine produced a maximum power of 1,600 hp, with a higher power plateau at 7,100 rpm, compared to 7,050 rpm. This power was doubled by 1600 Nm of maximum torque available from 2250 to 7000 rpm, against 6000 rpm previously.
Buggati also introduced more efficient turbochargers into the car for higher engine power. The four turbos were fitted with larger compressors which were reduced in size from 74 to 77 millimeters, to allow for a higher flow rate. “Despite the increase in performance, the weight of the engine is not affected and the response of the turbochargers remains at the same positive level provided by the 1,500 hp engine,” says Andreas Kurowski, Engine Development Engineer at Bugatti.
The company also introduced several other modifications such as new gear ratios, an updated chassis, lighter rims and new tires in order to make the car faster and more stable at extreme speeds.