Honda Performance Development unveils new HPD ARX-04b LMP2 Coupe

Article by Christian A., on April 14, 2014

Honda Performance Development has unveiled its new HPD ARX-04b LMP2 Coupe, which epitomizes the carmaker’s latest in LMP2 closed-cockpit sports car technology. The project is a result of collaboration between HPD and Wirth Research, which has already led to with success in INDYCAR, the American Le Mans Series and the FIA World Endurance Championship as well as class victories at the 24 Hours of Le Mans.

The ARX-04b fully complies with the new ACO LMP2 regulations while surpassing the latest safety standards of the new enclosed-cockpit configuration. It is powered by a 2.8-liter twin-turbo, direct injection, Honda HR28TT V6 engine that boasts of a drive-by-wire throttle system and fresh air valve system, which eliminates turbo lag while improving reliability and performance.

The HR28TT engine is developed from the production Honda "J35" series of V6 engines installed in the Acura MDX and RLX in North America. The HR28TT V6 uses over 400 production engine parts, including engine block and heads, crankshaft, direct-injection fuel system as well as valve train components, drive-by-wire hardware and stock Honda oil filter.

HPD and Wirth will provide customer teams with technical assistance and bulletin. Additional options are also available for purchase. Bespoke options now include driver-in-the-loop simulator sessions, data-logging, race and performance engineering, and MuRiTyre and Apotheca software.

Wirth Research President Nick Wirth remarked that his company is proud of its history of creating championship-winning prototype sports cars with and on behalf of HPD. He said that the HPD ARX-04b LMP2 Coupe is not only a stunning-looking race car, but is also the most aero-efficient, balanced and competitive LMP2 car for the next 2015 season.

"We are very excited for our new HPD ARX-04b LMP2 Coupe to see the light of day, combining all of our successes in international sportscar racing with the very latest regulations for closed-cockpit prototypes," said Steve Eriksen, HPD vice president and COO. "Our production-based Honda HR28TT engine has powered all of our LMP2 sportscars since the ACO regulations set the new cost-capped direction in 2011, and since its introduction the 2.8-litre twin-turbo V6 powerplant has achieved some truly great successes around the world – including multiple engine manufacturer championships, victory at the Sebring 12 Hours and the 24 Hour of Le Mans, as well as powering the first LMP2 FIA World Endurance Champion. We are confident that our latest iteration of the HR28TT engine and its associated systems will satisfy even the most discriminating drivers and power the new HPD ARX-04b LMP2 Coupe to even greater successes around the world."

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Topics: honda, race car

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