When Honda Performance Development motioned to swap out the turbocharger housing in all of its IndyCar engines in favor of a configuration with a low A/R value at Long Beach, Chevrolet wasted no time in throwing the proverbial red flag, on the grounds that Honda was going outside of the rule book. A three-person panel was scheduled to hear the protest from Chevrolet, and an explanation from Honda.
During the hearing, Chevy representatives contested the ability to make engine modifications at this point in the season while Honda argued that an agreement in 2010 that was meant to prevent turbo wars does allow the changes the program is aiming to accomplish. In the end, the panel supported Honda’s wishes.
The new setup gives the Honda-powered cars an estimated 10-15 horsepower boost, but Chevrolet still managed to steal the show. Just this last weekend after the race in Sao Paulo, Brazil, a Chevy-powered car driven by Will Power grabbed the checkered flag again, not to mention that 7 out of the top 10 finishes were also fitted with bowtie engines.