The Verizon IndyCar Series, Chevy, and Honda are close to developing the next set of engine regulations, and with those rules in the works, both brands have agreed to step back from the full slate of motor development options available this season. The decision comes during a year where, without the intentional change, Chevy supplier Ilmor Engineering and Honda Performance Development would have been allowed to make costly updates to their 2.2-liter twin-turbo V6 motors. Based on the current engine formula introduced in 2012, odd years like 2017 called for highly restrictive R&D allowances while even years have given Chevy and Honda freedoms to replace cylinder heads, turbos and the...
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