The engine is like an air pump; the more air that is allowed to flow through it, the more horsepower that you get out of it. In other words, if you have a free-flowing air intake and exhaust system in your average vehicle, you’ll get more horsepower because of the efficient flow of air into and out of the engine. Fuel requires air to burn and thus to produce energy. The more air that is available for combustion will also improve efficiency otherwise known as gas mileage.
The purpose is to research on the present common air flow systems in today’s automobiles, particularly cars. This will be too general and cover too wide of a topic, as a car also uses air for various other mechanical purposes. So I will focus my project on the exhaust gas flow in a naturally aspirated fuel injected vehicles. Thus, I will not cover turbos, superchargers and nitrous oxide systems . And since some other students are doing projects on the engine itself, I will not spend too much time on how the air undergoes combustion in the engine. In short, my whole project will be divided into 4 sections:
1. The Basic Theory Behind the Relation Between Performance and Air Flow.
2. Analysis of the Exhaust System in an Average Car.
3. Methods on How to Improve Efficiency and Power.
4. Future Technological Trends and A Sneak Peak at "Electronic Mufflers".
Hopefully after the review of this project the reader will get a better understanding of how an exhaust system works in a vehicle and how power and efficiency can be unleashed with some modifications. This project is in no way suggestive for getting a car prepped for illegal street racing.
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