Acura reveals ARX-06 LMDh car for 2023 IMSA season

Acura has taken the covers off the ARX-06 LMDh challenger that will compete in the new GTP class of the IMSA WeatherTech SportsCar Racing Championship in 2023.

Acura ARX-06
Acura ARX-06
1/6

Photo by: Acura

Acura ARX-06
Acura ARX-06
2/6

Photo by: Acura

Acura ARX-06
Acura ARX-06
3/6

Photo by: Acura

Acura ARX-06
Acura ARX-06
4/6

Photo by: Acura

Acura ARX-06
Acura ARX-06
5/6

Photo by: Acura

Acura ARX-06 engine
Acura ARX-06 engine
6/6

Photo by: Acura

Listen to this article

Having previously released only limited images of the car in camouflage livery from a Le Castellet test held in July, the Acura ARX-06 was revealed in full for the first time on Wednesday, featuring a predominantly white colour scheme.

A public showcase will follow on Friday at the Monterey Car Week in California.

The marque also revealed that it has built a bespoke 2.4-litre twin-turbo V6 engine combustion to power the Oreca-based LMDh contender, and it has been designed in-house by Honda Performance Department.

Acura said it is the smallest displacement engine built by the brand for endurance racing, significantly down on the 3.5-litre V6 motor that does duty in the current title-winning ARX-05 DPI car, but still meets the performance target of 500 kW at the rear axle.

It added that it has gone with a 90-degree V angle to lower the centre of gravity and reduce polar movement of inertia.

The ICU will be mated to the spec hybrid system built jointly by Xtrac, Bosch and Williams Advanced Engineering.

Acura said the exterior design of the car was completed jointly by its Design Studio in Los Angeles, a team of HPD aero engineers and chassis builder Oreca.

Driver input was also taken into account during the design process, with the position of the rear view mirror adjusted to improve aerodynamics and visibility following a test run on a VR headset.

“We’ve taken the challenge presented by this new rule package from IMSA and the ACO, and developed what we believe is a very competitive solution,” said Pierre Descamps, who led HPD’s powertrain design team for the ARX-06.  

“We’ve gone in a new direction for HPD in the design of the ICE.  It is still a V6, which of course for Honda is well-known, but we have incorporated several new elements which we believe will make best use of the electric MGU and battery pack. 

“Our new engine will rev to the maximum 10,000 rpm set by the rules, so it also makes a wonderful sound!” 

The new ARX-06 will be campaigned by Meyer Shank Racing and Wayne Taylor Racing in the GTP class beginning next season, with both teams remaining on the manufacturer’s roster of IMSA teams from the current DPi era.

MSR and WTR are the only teams in contention for the 2022 IMSA drivers’ and teams’ title, guaranteeing Acura the championship honours in the last season of DPi rules.

Acura said it is looking forward to the challenge of competing against multiple marques next year, with current DPi rival Cadillac returning for another assault at the title and newcomers Porsche and BMW making it a four-way manufacturer fight in the GTP class.


No information about Acura’s testing programme prior to the car’s debut at the Rolex 24 was revealed, but the Honda-owned marque said it is planning “24-hour simulations” to prepare for the 2023 season.

“We are HPD - we race, we develop our engineers and technology through racing," said David Salters, HPD President and Technical Director. 

"We have an amazing and unique racing legacy, both past and present. It’s what we do as Acura’s – and Honda’s – North American racing organization. 

"We are looking forward to the challenge of racing Porsche, BMW and GM in IMSA’s pinnacle GTP championship.  We are very cognizant this is a big step for us. We have a lot to learn, but that is why race.”

“The new Acura ARX-06 has elements of our Indy-winning technology, Honda Formula One technology and Rolex 24-winning technology in it. 

"This was achieved using HPD’s world-class simulation, design, development and manufacturing technologies; that our own engineers have developed, tested and validated.  We are very proud of that.  Now the challenge and hard work really starts, including grueling 24 hour simulations, and learning how to maximize all aspects of performance.” 

Acura currently has no plans to take the ARX-06 to the FIA World Endurance Championship, which will allow LMDh machinery against Le Mans Hypercars from next year as part of a unification of rules between the two series.

Read Also:
Acura ARX-06

Acura ARX-06

Photo by: Acura

shares
comments
Porsche completes two-car Monza LMDh test as US-bound chassis debuts
Previous article

Porsche completes two-car Monza LMDh test as US-bound chassis debuts

Next article

Why BMW shouldn't be overlooked on its return to prototypes

Why BMW shouldn't be overlooked on its return to prototypes
How Porsche's Le Mans legend changed the game Prime

How Porsche's Le Mans legend changed the game

The 956 set the bar at the dawn of Group C 40 years ago, and that mark only rose higher through the 1980s, both in the world championship and in the US. It and its successor, the longer-wheelbase 962, are arguably the greatest sportscars of all time.

WEC
Aug 25, 2022
Why BMW shouldn't be overlooked on its return to prototypes Prime

Why BMW shouldn't be overlooked on its return to prototypes

OPINION: While the focus has been on the exciting prospect of Ferrari vs Porsche at the Le Mans 24 Hours next year, BMW’s factory return to endurance racing should not be ignored. It won't be at the French classic next year as it focuses efforts on the IMSA WeatherTech SportsCar Championship, but could be a dark horse in 2024 when it returns to La Sarthe with the crack WRT squad.

Le Mans
Aug 21, 2022
The British pair at the heart of Lexus's sportscar push Prime

The British pair at the heart of Lexus's sportscar push

Have you heard the one about two British guys driving for a Japanese manufacturer in America’s top sportscar series? Time to sit down and talk with Jack Hawksworth and Ben Barnicoat about racing across the pond… and your accent being mistaken for Australian!

IMSA
Mar 16, 2022
Why Peugeot couldn't afford to take a Le Mans gamble in 2022 Prime

Why Peugeot couldn't afford to take a Le Mans gamble in 2022

Ahead of the much-anticipated arrival of its new 9X8 Hypercar, Peugeot revealed that it would not be entering this year's Le Mans 24 Hours with its incoming machinery. Although development restrictions for homologated cars are partially responsible, the French marque can draw on its own lessons from its history in sportscars

WEC
Feb 28, 2022
Why the GTP name undermines convergence between IMSA and WEC Prime

Why the GTP name undermines convergence between IMSA and WEC

OPINION: The adoption by IMSA of the GTP name for its forthcoming LMDh versus Le Mans Hypercar era in 2023 appeals to fans of nostalgia - but it undermines the commonality achieved by bringing its rulebook into line with the WEC. GTP or Hypercar, both sides should settle on a single name

WEC
Feb 15, 2022
Celebrating the weird and wonderful monsters of sportscar racing Prime

Celebrating the weird and wonderful monsters of sportscar racing

Few disciplines of motorsport offer better possibilities to build a colossus of the track than sportscars. For Autosport's recent Monsters of Motorsport special issue, we picked out some of the finest (and not so fine) that have graced sportscar classics including Le Mans, Daytona and Sebring

Le Mans
Feb 4, 2022
How Castroneves and Meyer Shank conquered another US classic Prime

How Castroneves and Meyer Shank conquered another US classic

Helio Castroneves continued his fine start to life with Meyer Shank Racing that netted the 2021 Indianapolis 500 victory by prevailing in last weekend's Daytona 24 Hours together with teammates Tom Blomqvist, Oliver Jarvis and Simon Pagenaud. As Cadillac fell by the wayside, the Brazilian veteran won out in an all-Acura duel to the finish

IMSA
Feb 1, 2022
How Derani's long road to title success exorcised painful memories Prime

How Derani's long road to title success exorcised painful memories

It took Pipo Derani no time at all to establish himself as a winner in IMSA, winning the Daytona 24 Hours and Sebring 12 Hours on his first two starts in 2016. But it took until the final corner of the 2021 season before he could become its champion, the culmination of a journey that he believes has made him a better driver.

IMSA
Jan 16, 2022