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Perfecting Hondas 2026 F1 powertrain is not so easy, says racing boss
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vroom Perfecting Hondas 2026 F1 powertrain is not so easy, says racing boss Getting the new F1 hybrid right is a challenge. Jonathan M. Gitlin Feb 11, 2025 12:55 pm | 1 Takuma Sato of Japan and Koji Watanabe of Japan and Honda during practice ahead of the F1 Grand Prix of Japan at Suzuka International Racing Course on April 5, 2024 in Suzuka, Japan. Credit: Qian Jun/MB Media/Getty Images Takuma Sato of Japan and Koji Watanabe of Japan and Honda during practice ahead of the F1 Grand Prix of Japan at Suzuka International Racing Course on April 5, 2024 in Suzuka, Japan. Credit: Qian Jun/MB Media/Getty Images Story textSizeSmallStandardLargeWidth *StandardWideLinksStandardOrange* Subscribers only Learn moreAcura provided accommodation for Ars for the Rolex 24 at Daytona. Ars does not accept paid editorial content.DAYTONA BEACH, FloridaThe North American road racing season kicked off in fine form a couple of weekends ago with the annual Rolex 24 at Daytona. This year, Honda Racing Corporation president Koji Watanabe was invited as the Grand Marshal, and his attendance at the race gave Ars a chance to talk racing with him, including an update on the company's F1 endeavors, which next year see it team up with Aston Martin. As we found out, it's going to be hard work.At the beginning of last year, Honda rearranged the corporate structure around its motorsport activities. Honda Performance Development, which was responsible for developing Honda and Acura racing cars in IndyCar and IMSA, rebranded itself as Honda Racing Corporation US, a move that has meant closer collaboration between the teams in California and Japan, aligning everything under one overall bossWatanabe.The ARX-06 at Le Manswith Takuma Sato?Given that our roundtable with Watanabe and Vice President of HRC US Kelvin Fu took place during an endurance race, I asked whether the new corporate structure for racing would make a Le Mans program for the ARX-06 more feasible. Until now, the fact that the ARX-06 is branded as an Acura has been a stumbling blockAcura is a US-only brand, so it makes sense to race it in IMSA, but Le Mans and the World Endurance Championship are global events, and such a car would probably need to be labeled asand therefore paid for byHonda."I always answer the question with the same answer: Personally, I am really interested in going to Le Mans, but for now, there's no official decision," Watanabe said. But there might be light at the end of that particular tunnel. "In the future, we'd like to participate in Le Mans and WEC. But for now, no decision."As a follow-up, I wondered if we might ever see double-Indy 500 champion and ex-F1 driver Takuma Sato behind the wheel of the Acura (or Honda) sports prototype. There were about a dozen former F1 drivers on the grid at Daytona this year, and while his former F1 teammate Jenson Button picked WEC over IMSA this year, his enthusiasm for the hybrid Hypercar/GTP categories in those two series is a ringing endorsement.According to Watanabe, never say never. "Takuma told me if we participate in Le Mans, he wants to be a candidate for the race team," he said. HRC President Koji Watanabe waves the green flag to start the Rolex 24. Credit: Honda F1Honda has had a very long, if on-and-off, involvement in F1. It built its own car and engines for the sport between 1964 and 1968, winning twice before leaving until 1983, when it returned just as an engine supplier. But what engines! The Williams F1 team used Honda engines between 19831987, racking up 23 wins and two constructor's championships in the process.Team Lotus also gained access to Honda's engines in 1987, winning two grands prix that year. But when Ayrton Senna departed to McLaren in 1988 he also brought Honda engines to that team, which won 44 races between 1988 and 1992. All told, Honda engines won every championship between 19881992.After an unremarkable 1991 with Tyrell, Honda left the sport for several years before coming back in 2000 as the engine supplier for British American Racing, a team it would eventually buy and operate as a factory outfit until the global financial crisis of 2008 caused it to change its plans. That team became Brawn F1 and then the Mercedes-AMG team.Honda's next return to the sport was in 2015 with McLaren, but success eluded the company until it paired up with Red Bull Racing in 2019. The next two years saw 16 wins, as well as a 17th courtesy of Red Bull's B-team, then known as Alpha Tauri. But at the end of the 2020 season, Honda decided to exit the sport again, which was justified at the time as necessary so that the company could focus those resources on alternative powertrains instead. Ayrton Senna was one of a number of F1 champions to be propelled there by Honda power. Credit: Pascal Rondeau/Allsport/Getty Images Red Bull and Alpha Taurinow called Racing Bullscontinued to use the same Honda powertrains but rebadged as Red Bull Powertrains, albeit still in cooperation with Honda.Then, in 2024, we learned that Honda had changed its mind. As we've covered in the past, in 2026, a new powertrain formula is coming into F1. This ditches the expensive and not very road-relevant MGU-H (which recovers waste energy from the turbocharger) in place of a much more powerful MGU-K (an electric motor/generator that can power the wheels or regenerate energy under braking) and a larger battery.The new rules have been extremely attractive to carmakers. In addition to causing Honda to reconsider its exit, Ford is also coming back (developing the hybrid system for Red Bull Powertrains), and both Audi and Cadillac are also entering the sport, although the American brand won't have its own engines ready until 2028.Audi and Cadillac will both count as new engine suppliers, so they are allowed some extra development resources. However, Honda is counted as an existing manufacturer and doesn't get any special treatment.I asked how the work was progressing: "Not so easy, we are struggling, now we are trying our best to show the result next year," he said. "Everything is new. [The] motor is new, [developing] 350 kWit's a very compact one that we need. And also the lightweight battery is not so easy to develop. Also the small engine with big power. So everything is very difficult, but we try our best."Getting it right will be vitalalthough Aston Martin now has the advantage of legendary designer Adrian Newey among its staff. Newey is on record saying that the 2026 rules have a "big chance" of being an engine formula, where each car's aerodynamics are far less important, unlike today's situation.Trickle-downOEMs go racing to raise their profile and sell more cars, but they also do it as a way to learn how to make their products better. Honda and HRC are no exception to that. But concrete examples of technology transfer from track to road are rare these daysit's more about cross-pollination between engineers."There is a group within Honda that shares technical information yearly. It's not just the racing; it's all across Honda, so I think there's been some interest in the technology and software we've developed," Fu said. "Whether it trickles down to road cars... it's a big jump from a race car to road cars, but I think some of the fundamental technical ideas can propagate down there.""From the F1 project, we can learn how to improve the hybrid system itself, and of course, we can learn how to create high-efficiency batteries and motors for the future. That's why we decided to reparticipate in Formula 1," Watanabe said.Jonathan M. GitlinAutomotive EditorJonathan M. GitlinAutomotive Editor Jonathan is the Automotive Editor at Ars Technica. He has a BSc and PhD in Pharmacology. In 2014 he decided to indulge his lifelong passion for the car by leaving the National Human Genome Research Institute and launching Ars Technica's automotive coverage. He lives in Washington, DC. 1 Comments
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