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With Chevrolet and Honda under contract to supply 2.2-liter twin-turbo V6 engines through 2026, the NTT IndyCar Series has started preliminary discussions with its current manufacturers, and those …
The NTT IndyCar Series has started discussions about the future engine formula beyond 2026, as Chevrolet and Honda are supplying 2.2-liter twin-turbo V6 engines under contract. Since 2013, Chevy and Honda have powered the entire field of 27 full-time entries, which puts pressure on their finances and personnel, especially during the Indy 500 with 33-36 cars. After the Indy 500, the series plans to introduce a hybrid energy recovery system developed by Chevy and Honda, enhancing the current engine setup until 2026. To ease the burden on current manufacturers and attract new ones, IndyCar is considering new engine regulations aimed at cost control and common components. Talks about the future powertrain formula have been ongoing since 2023, exploring various ideas from spec powerplants to alternate fuels for the 2027 season and beyond.
