Frequently Asked Questions (FAQs)
1. Will ram air increase horsepower?
Yes, ram air kits, including cold air intakes and short ram intakes, are designed to increase horsepower in a vehicle. They work by utilizing the dynamic air pressure created during vehicle motion to increase the static air pressure inside the intake manifold, allowing for a greater mass flow and ultimately increasing engine power.
2. What does a ram air kit do?
A ram air kit is an intake system that uses the vehicle's motion and ram pressure to increase the static air pressure inside the engine's intake manifold. By doing so, it allows for a higher mass flow of air through the engine, resulting in increased engine power and performance.
3. How much boost does ram air make?
Ram air can generate approximately 2 psi of air pressure, resulting in a barometric air pressure increase of around 4 inHg. When properly accounted for, this can lead to a potential increase of up to 10% in horsepower at the top end of the engine's performance.
4. What are the disadvantages of a cold air intake?
While a cold air intake provides denser air than the stock intake, it often comes with a higher price tag due to its longer and more complex routing. The installation process can also be more difficult and time-consuming due to the increased complexity of the system.
5. At what speed does ram air work?
Ram air starts to work at speeds around 200 mph. At this speed, the potential gain from ram air is just under 5%. However, realizing this potential requires the smooth deceleration of fast-moving intake air to convert its kinetic energy into pressure energy, which can increase engine performance.
6. Does ram air increase mpg?
No, ram air does not increase fuel efficiency. In fact, ram air and cold air intakes are performance modifications rather than economy modifications. The denser air provided by ram air requires more fuel to maintain the optimal air-fuel ratio. To improve fuel mileage, warm air at low pressure is preferable.