Turbocharged engine vs naturally aspirated engine

Administrator posted this 20 November 2018

If you are interested in, what is better - turbocharged engine or naturally aspirated engine? The answer would be - both are good, which to choose depends on your purpose. To see it clear you need to understand the main differences between these types of the engines, which is presenting in the table below. 


Turbocharged engine 

Naturally aspirated engine 


How does it work? 

There is turbocharger system installed, so the turbine uses exhaust gases to create high air pressure, as a result, more compressed air enters the chambers, the fuel mixture burns better and due to this, the turbocharged engines are more powerful up to 10% on average. 

In fact, this is a common engine. The pistons tighten the air goes through the filtration system, using a vacuum in the cylinder and with the participation of a carburetor or injector on modern cars, a fuel mixture is formed. 

Fuel consumption relative to horsepower 

Relatively speaking, the engine capacity of 1 liter, will be able to provide a capacity of 120 HP. 

To work at 120 HP, you need an engine capacity of 1.6 liters. 

That is, at the same horsepower, the volume of the turbocharged engine is less than that of the atmospheric. 


Powerful engine, it has better dynamics and low fuel consumption. 

The engine has low power, especially on rough terrain. Less fuel consumption. 


From the amount of engine normal aspirated 1.4-liter, will spend less than the 1.4-liter turbocharged engine, but at the same, it will cede power second. 


This engine is less wear-resistant due to high loads. The mileage threshold (haulage) is 150 000 km or 93 205 miles.  

The mileage threshold for cars with this type of engine is greater, and is 300 000 – 500 000 km., or 186 411 – 310 685 miles. Such a large mileage is provided by the resource of the engine.

Environmentally friendly 

Less harmful to the environment, due to the additional air boost the incoming fuel mixture burns almost without residue.

Due to the conditions of its own device, this type of engine makes more exhaust emissions.

Physical characteristics

Less noisy, small weight.

Has a high weight, makes more noise. 

Warm up in winter 

Winter is warming up longer than the aspirated engine.

Warms up quickly.

Fuel and liquids 

The turbocharged engine needs for frequent replacement of the oil filter and the oil itself. Moreover, this type of engine is very demanding on the quality of fuel and other consumables. 

Less picky about fuel and consumables.


A complex structure, which complicates maintenance and repair. 

Due to the simple design, they are easy to repair and operate. 

Therefore, naturally aspirated engineare more suitable for passenger cars and/or to move around the city. Turbocharged engines - for those who need a powerful car that will feel confident both in the city and off-road.