Racing cars like Nascar and Formula 1 have loud engines but how are normal road car engines quite quiet?
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Regular cars have mufflers and are designed to be used in neighborhoods and around people.
Race cars are made to be as fast as possible. That’s it. So noise levels arnt a consideration. Mufflers are adding weight and I don’t think that’s a good idea for a race car. I’m not really a car expert but I’m pretty sure a muffler can restrict the airflow and hurt engine performance.
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