What is the equivalent of a 1.4t engine to a naturally aspirated engine?
3 Answers
1.4t engine power is equivalent to a 1.4-liter naturally aspirated engine, with an additional turbocharging device. The cast iron cylinder block is used, while the EA211 1.4t turbocharged engine features an aluminum alloy cylinder block. The TSI engine utilizes turbocharging, direct fuel injection, and an AVS system to achieve cylinder deactivation. The AVS system changes the valve lift and timing under different operating conditions by switching between two cams with different angles. For a 1.4t engine, it is recommended to start slowly and accelerate gently. After starting a turbocharged engine vehicle, avoid pressing the accelerator pedal abruptly. Instead, let the engine idle for 3 to 5 minutes, allowing the oil pump sufficient time to deliver oil to all parts of the turbocharger. Meanwhile, as the oil temperature gradually rises, its fluidity improves, ensuring the turbocharger is fully lubricated.
From my understanding of mechanics, a 1.4T turbocharged engine uses a turbocharger to inject more air into the cylinders, resulting in stronger combustion and power output around 130 to 150 horsepower, which is similar to a naturally aspirated 1.8L engine. For example, Volkswagen's 1.4T model delivers power comparable to the older Honda 1.8L naturally aspirated engine, but with a smaller displacement and about 10% better fuel efficiency. It makes overtaking in city driving much easier. Turbocharging technology has truly advanced, allowing small cars to pack a punch. However, turbo components are prone to overheating, so during maintenance, it's important to check the fans and oil lines to prevent overheating and seizing. Overall, choosing a 1.4T is cost-effective—it delivers power comparable to larger engines without complicated maintenance, just requiring regular oil changes.
After driving my brother's 1.4T Volkswagen Sagitar, I felt an incredibly strong push-back sensation. It accelerates much faster from a standstill compared to my naturally aspirated car, with power equivalent to a 2.0L naturally aspirated engine. In actual driving, the acceleration on the highway is super smooth without any lag, and it's even more fuel-efficient, saving about 2 liters per 100 kilometers. My advice when choosing a car is not to focus solely on displacement. A 1.4T small-displacement engine with high horsepower is quite practical for city commuting. Maintenance-wise, the turbo might need replacement after a few years, but the power delivery is smooth and economical.
