Why Doesn't Volkswagen Use Naturally Aspirated Engines?
2 Answers
Volkswagen does not have a 2.4-liter displacement, which is commonly used in naturally aspirated mid-size cars. Volkswagen has already made significant breakthroughs in turbocharged engines, so there is no need to develop new engines. Naturally Aspirated: This refers to an engine that relies on the air pressure generated by the downward movement of the piston, without using a supercharger, allowing atmospheric pressure to directly force air into the engine's combustion chamber. Advantages: Smooth power output, quick response, wide usable RPM range. Oil and coolant temperatures can be maintained within an optimal range for engine operation, resulting in longer engine life. Simple structure, low cost, and easy maintenance. Disadvantages: Naturally aspirated engines of the same displacement are weaker in power compared to engines equipped with superchargers.
I think Volkswagen's decision to phase out naturally aspirated engines is a smart move, primarily because driving nowadays demands higher performance and efficiency. While naturally aspirated engines are durable, they have lower specific output and higher fuel consumption, often feeling underpowered in urban driving conditions. After switching to turbocharging, even small-displacement engines can deliver high torque, making acceleration from a standstill much more satisfying and significantly enhancing the driving experience. For instance, when I drive on highways or climb hills, the rapid power response after the turbo kicks in feels like driving a completely different car. At the same time, fuel consumption has dropped by 10% to 20%, saving a considerable amount on gas in the long run. With increasingly stringent environmental regulations, naturally aspirated engines struggle to meet emission standards, while turbo technology paired with direct injection systems effectively addresses this issue. Overall, Volkswagen has taken a step to keep up with the times, making its products more competitive.
