what size engines are in indy cars
Type: 2.2-liter (134.25 cubic inches) V-6, turbocharged (single or twin), Max. bore diameter 95 millimeters. Weight: Minimum weight is 248 pounds. RPM: 12,000 maximum (INDYCAR-supplied rev limiter). Power: Estimated 550-700 horsepower depending on variable turbo boost used at track.