The Acura ARX-06 endurance race car makes its debut August 19 at The Quail, A Motorsports Gathering, during Monterey Car Week. The machine then makes a competition debut in January at the Rolex 24 at Daytona and challenges the 2023 IMSA WeatherTech SportsCar GTP Championship.
Power for the race car comes from the new twin-turbocharged 2.4-liter Acura AR24e V6. It develops the maximum power of 671 horsepower (500 kilowatts) prescribed by the rules and revs at 10,000 rpm. The combustion chamber design allows the powertrain to run on low carbon fuel.
Series rules dictate the use of a Bosch generator set and a Williams Advanced Engineering battery pack. The Acura team had to create the software to make sure its combustion engine could work with this hybrid part of the powertrain.
The styling of the ARX-06 includes a massive front splitter and a floating element above that also contains the running light portion of the headlights. The rear features a spoiler that covers the area from the cockpit to the wing, which has endplates that attach to the lower body.
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Part of the development included rendering the cockpit in virtual reality and installing the future pilots in the car. They suggested lowering the side mirrors to a location directly behind the front fenders. This gave them better outward visibility and proved to be a more aerodynamically efficient position for the vehicle.
The rules for this class require builders to select one of four approved chassis, but builders can then apply bodywork that matches their brand appearance. The ARX-06 uses monocoque carbon fiber underlays from ORECA. The company has previously worked with Acura on the ARX-05 DPi.
“We are looking forward to the challenge of racing Porsche, BMW and GM in the IMSA GTP Championship. We are very aware that this is a big step for us. We have a lot to learn, but that is why the racing,” said David Salters, president and technical director of Honda Performance Development.
Wayne Taylor Racing and Meyer Shank Racing will compete with the ARX-06 in 2023. These teams are already campaigning the ARX-05 in the IMSA WeatherTech SportsCar Championship. As of this writing, drivers from these teams hold the top four spots in the series points standings.