| 21. | Later in 1984, a normally aspirated engine was introduced in the 9000 and 9000 S models, producing.
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| 22. | This was the first race where the IRL used their brand new cars with normally aspirated engines.
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| 23. | Lotus, along with other competitors, now had to incorporate 3, 500 cc normally aspirated engines into their cars.
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| 24. | The locomotive weighed 70 tons on three axles and was powered by the Rolls-Royce DV8N naturally aspirated engine.
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| 25. | The IRL, in only its second year, is introducing all new chassis and normally aspirated engines this weekend.
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| 26. | Teams can choose to use the NGTC 2.0 litre turbocharged engine, or S2000 2.0 litre Naturally aspirated engine.
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| 27. | The BTCC Cruze used the 2.0-liter naturally aspirated engine found in the original variant of the WTCC Cruze.
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| 28. | It marked the introduction of a new production-based, normally aspirated engine formula as well as a new chassis design.
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| 29. | Using a stroker crankshaft from Toda Racing, the naturally aspirated engine displaced 3.5 liters and produced nearly 500 bhp.
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| 30. | And the consensus is that the naturally aspirated engine sounds sort of like a muscle car, circa late 1960s.
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