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Analysis of the Bugatti Chiron 300+ Aerodynamics (Explained)

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Last Updated on: 7th September 2023, 12:47 am

The Bugatti Chiron Super Sport 300+ is an engineering marvel that has recently taken the automotive world by storm.

Through innovative aerodynamic enhancements, it boasts the remarkable ability to breach the elusive 300mph barrier.

By unpacking the modifications and understanding their synergy, we can appreciate the science and engineering that went into making this hypercar a record-breaker.

This article delves into an in-depth analysis of the aerodynamic distinctions between the standard Bugatti Chiron and its high-speed counterpart, the Chiron Super Sport 300+.

rolling photo of the Bugatti Chiron SuperSport 300+

Chiron Super Sport 300+ Aerodynamic Enhancements

Bugatti introduced a plethora of aerodynamic modifications in the Chiron Super Sport 300+ in comparison to the standard Chiron. Notable changes include the following.

  • 250mm body extension at the rear
  • Removal of the rear wing
  • Lowered ride height
  • Modified front splitter
  • Modified rear diffuser

Minimising Lift

The upper surfaces of a car body like the Chiron inherently produce lift at high speeds, which can be detrimental to stability.

The engineers at Bugatti concentrated their efforts on neutralizing this lift without compromising on drag.

An impressive 2000kg of positive lift was expected at speeds exceeding 300mph. The changes were primarily targeted at minimizing drag while maintaining an aerodynamically stable platform.

Underfloor Aerodynamics

The most efficient method of counteracting positive lift is by optimizing the underfloor aerodynamics.

The modified front splitter on the Super Sport 300+ is designed to maximize the mass flow and quality of air traveling underneath the car.

Concurrently, the extended and more aggressive rear diffuser, facilitated by the rear extension and the repositioning of exhaust exits, ensures that the air leaves the underfloor efficiently.

This configuration potentially shifts the Center of Pressure (CoP) rearward, closer to the Center of Gravity (CoG), thereby increasing stability through aerodynamic leverage.

Ride Height and Pressure Management

Lowering the ride height is instrumental in taking full advantage of the underfloor aerodynamic changes.

A lower ride height increases the airspeed beneath the car, which in turn reduces the pressure of the underfloor airflow.

This pressure management plays a critical role in counteracting lift. Furthermore, the reprofiling of the rear end helps in reducing the low-pressure area behind the car, contributing to drag reduction.

Engine Performance and Cooling

A vital aspect closely related to aerodynamics is the engine’s performance and cooling. The Super Sport 300+ houses a quad-turbocharged 8.0-liter W16 engine that generates an astounding 1577 horsepower.

For an engine to perform at such high levels, effective cooling is crucial.

The removal of the rear wing and modification of the front splitter not only serve aerodynamic purposes but also improve the air intake for better engine cooling.

Tyres and Wheel Design

A frequently overlooked aspect of high-speed aerodynamics is tire and wheel design.

The Super Sport 300+ is equipped with specially designed Michelin tires capable of withstanding the immense forces at 300mph.

The wheel design is also critical in managing airflow around the wheel wells, which can significantly influence the aerodynamic efficiency of the car.

Conclusion

The Bugatti Chiron Super Sport 300+ is a testament to the triumph of engineering and innovation. Its design intricacies and meticulous aerodynamic optimizations facilitate it to break the 300mph barrier.

Through a combination of underfloor enhancements, ride height adjustments, engine performance tuning, and advanced tire technology, Bugatti has set a new benchmark in the realm of hypercars.

  • Andy Lewin

    Andy Lewin is a senior mechanic, ASE qualified master technician, and an experienced automotive engineer. He's passionate about serving the automotive community with the highest-quality and trustworthy information on all things automotive. He loves to write about car repairs, maintenance, car modifications and tuning, faults, and much more.

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