They primary serve to balance the car, so the handling feels right. Steering A car's highly stressed steering and suspension components are all made of high-grade steel or an alloy. The steering shaft is designed for restricted backward movement during a frontal crash. Under racing conditions, the pit crew uses a dry-break disconnect system. Pressurized or vacuum systems aren't allowed and fuel can't be cooled.
Fines are heavy for any fuelling accidents.
Engine The Olds-Aurora engine has a displacement is 3.5 liters. All indy cars are limited to normally aspirated four-cycle overhead camshaft engines. Strict regulations govern every aspect of the engine's materials and construction. It must have a neutral position. 6 forward speeds with a sequential shifter.