What is the difference between displacement with t and without t?

[McJosiah]

The difference between displacement with t and without t: 1. Different meanings: Displacement with t refers to a turbocharged engine, while without t refers to a naturally aspirated engine. 2. Different structures: The engine with t has an additional supercharging device besides the basic engine structure; the engine without t only has the basic configuration. 3. Different working principles: The engine with t increases the intake air volume through a turbocharger, forming a mixture with fuel. Due to the larger air volume, the combustion after ignition is more complete; the engine without t relies on the naturally formed pressure difference to intake air and form a mixture with fuel gas, which is then ignited.

[CamilaLee]

The difference between models with and without a "T" mainly lies in power and efficiency. The "T" indicates turbocharging, which uses exhaust gases to drive a turbine, increasing air intake and thereby delivering more horsepower and torque from the same displacement. When driving such a car, you can feel a stronger push-back sensation, especially during highway acceleration, which is exhilarating. However, non-turbocharged cars rely on natural aspiration, offering smoother response and sufficient power for city commuting. The downside of turbocharged engines is potential turbo lag—a slight delay in power delivery after pressing the accelerator—and more complex components, leading to higher maintenance costs. Personally, I prefer turbocharged engines as they enable small-displacement cars to deliver high-performance power, satisfying the thrill of driving. Overall, turbocharged models suit those seeking driving excitement, while non-turbocharged ones are more economical. From a modern trend perspective, many manufacturers promote turbocharging to reduce emissions and improve fuel efficiency.

[DiGemma]

I carefully compared turbocharged (T) and naturally aspirated engines when choosing a car. Turbocharged engines, due to their turbochargers, allow greater air intake, enabling smaller displacement engines to deliver stronger performance—for example, a 1.5T engine can match the power of a 2.0L naturally aspirated engine. In daily driving, turbocharged engines respond quickly, making them ideal for overtaking. However, naturally aspirated engines are more reliable, simpler, and cheaper to maintain, making them better suited for long-term use. In terms of fuel consumption, turbocharged engines are more efficient on highways but may consume more fuel in congested city driving due to less frequent turbo engagement. I recommend deciding based on your driving habits: choose turbocharged for power, or naturally aspirated for cost savings and durability. Additionally, turbocharged engines help meet environmental regulations, but hybrid options are also gaining popularity.

[EmmettMarie]

The difference is simple: models with a T denote turbocharged engines, where exhaust gases drive a turbine to increase air intake and pressure, thereby boosting power. Those without a T are naturally aspirated, lacking this forced induction process, resulting in lower efficiency. For example, a 1.5T engine typically delivers 20%-30% more horsepower than a 1.5L naturally aspirated one. However, turbocharging comes with turbo lag, potentially requiring higher RPMs for optimal response. Considering these factors when purchasing a car will help you make the right choice.

[SanHadley]

Driving a car with a turbo (T) and one without feels noticeably different. With a turbo, a quick press on the accelerator leads to a significant boost in thrust once the turbo kicks in, making uphill climbs or overtaking effortless. Naturally aspirated engines, on the other hand, offer a smoother transition, ideal for city roads or relaxed driving. Turbocharged engines excel in power, appealing to those who enjoy excitement. However, turbo engines have more complex systems, slightly higher failure risks, and costlier maintenance, especially in older cars where turbo cooling requires attention. Non-turbo engines are simpler and more durable. I often use turbocharged cars for long trips to save fuel, but for short daily commutes, I prefer the stable feel of naturally aspirated engines.