1. He was the only one with a normally aspirated engine . 2. "These are normally aspirated engines , and they're really weather-dependent. 3. George banned the expensive turbocharged engines that CART uses, adopting cheaper, simpler, normally aspirated engines . 4. Although some believe warmer air won't hinder normally aspirated engines as much, a dropoff is expected. 5. GT2s are stock-based unibody cars with turbo-charged or normally aspirated engines based on an equivalency formula. 6. Later in 1984, a normally aspirated engine was introduced in the 9000 and 9000 S models, producing. 7. He believes the IRL teams have continued to improve the IRL cars, which have normally aspirated engines . 8. This was the first race where the IRL used their brand new cars with normally aspirated engines . 9. Lotus, along with other competitors, now had to incorporate 3, 500 cc normally aspirated engines into their cars. 10. The IRL, in only its second year, is introducing all new chassis and normally aspirated engines this weekend.
