NSX final model records the fastest time of a production car…U.S. city course

On September 28th, Honda's overseas luxury car brand, Acura, recorded the fastest lap time of a commercially available car on the "Long Beach Circuit", an urban course in California, USA, with the "NSX Type S" (Acura NSX Type S). announced.

The NSX Type S will be limited to 350 units to celebrate the final year of production of the current NSX. Of these, 300 will be sold in the US market. For Japan, 30 units will be introduced under the Honda brand.

◆ Exclusively designed exterior with enhanced aerodynamic performance

The Type S adopts a specially designed exterior. A new front bumper with larger, more angular air intakes and a larger rear diffuser work together to improve high-speed stability. A new carbon fiber front spoiler minimizes aerodynamic lift at the front by directing airflow to the underside of the car.

The front grille opening has been enlarged to improve engine cooling performance. A total of four openings, two on each side, have been added to send air to the sub-radiators behind the left and right sides of the front bumper. The outer air intakes also channel air to the sides of the car and work with the newly designed front corners to form an air curtain. This is said to improve the air flow to the intake port mounted on the side of the intercooler.

At the rear, a large carbon fiber diffuser with the motif of the racing car "NSX GT3 Evo" is installed. This diffuser is characterized by a shape that pursues the air flow in the central part, which is said to generate more downforce.

◆ Achieved the strongest 600hp in the history of Acura with the entire hybrid system

The NSX Type S is also equipped with a high-efficiency, high-output 3-motor hybrid system, "Sports Hybrid SH-AWD." A total of three motors were laid out, with two motors at the front and one at the rear integrated with the 9-speed dual-clutch transmission. It is an electric 4WD hybrid that uses two independent motors for the left and right front wheels and enables torque vectoring that freely controls the driving force of the four wheels.

The direct-injection 3.5-liter (3493cc) V-type 6-cylinder gasoline twin-turbo engine has been specially tuned. A newly developed fuel injection system allows for 25% more gasoline flow. The newly designed intercooler has increased cooling performance by 15%. A new turbocharger shared with the race car NSX GT3 Evo boosts peak boost pressure by 5.6% from 15.2psi to 16.1psi. As a result, the maximum output of the engine increased by 20hp from 500hp to 520hp, and the maximum torque also increased by 5.2kgm from 56.1kgm to 61.3kgm.

The power of the hybrid system as a whole reaches 600hp, an increase of 27hp, and torque of 68kgm, an increase of 2.2kgm. The power of 600hp is said to be the strongest among Acura's commercial vehicles so far. The gear ratio of the Twin Motor Unit (TMU), which powers the front wheels and enables active torque vectoring in corners, has been lowered from 8.050:1 to 10.382:1. This 20% lower gear ratio improves acceleration performance.

In addition, the Intelligent Power Unit (IPU), which powers the electric motors, increases efficiency. This results in a 20% increase in usable battery capacity and a 10% increase in battery output. The electric motor of the Sport Hybrid SH-AWD system has been retuned for higher capacity and power. All four modes of the Integrated Dynamics System improve performance and extend EV mode range.

◆ 9-speed dual clutch with improved acceleration performance with a new program

The 9-speed dual-clutch transmission was also specially tuned. The new Rapid Downshift, which works in Sport mode and above, allows the driver to skip multiple gears at once by pressing and holding the downshift paddle. By pressing and holding the paddle for 0.6 seconds, the transmission automatically selects the lowest possible gear to match the vehicle's speed and shortens shift times.

Acceleration performance has been improved with new programming that engages the clutch up to 50% faster during paddle shift operations in Sport and Sport+ modes. Without paddle shift in Sport+ mode, the transmission downshifts as soon as the brakes are applied. The aim is to keep the vehicle stable by downshifting on the straight line before the corner, and to sharpen the acceleration from the corner by optimizing the engine speed.

The chassis and suspension have been optimized to pursue performance and an emotional connection with the driver. The four modes of the integrated dynamics system have also been retuned to improve performance, with Intake Sound Control (ISC) and Active Sound Control (ASC) reprogrammed to produce a sportier engine sound. It is said that it was done.

◆ Update the record set by NSX at that time in 2019

This NSX Type S recorded the fastest lap time of a production car at the Long Beach Circuit, an urban course in California, USA. The Long Beach Circuit is the stage for the Acura Grand Prix, with a lap of approximately 3.2km. Ricky Taylor who rode Acura's racing car "ARX-05" served as the time attack.

The measured lap time was 1 minute 32 seconds 784. It was about 3 seconds shorter than the 1 minute 35 seconds 663 time set by the NSX in 2019.

After completing the time attack, Taylor said, "Long Beach is a very fun circuit, but it's a challenging course with little room for error. The NSX Type S is not only fast, but it's easy to control on the limit. It's perfect for a course like this. ' said.

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