The air for combustion is drawn into the engine cylinders by the pressure of the surrounding atmosphere in a naturally aspirated engine. It works in opposition to a partial vacuum created by the piston as it descends towards the bottom dead center of the cylinder. In naturally aspirated cylinders, this occurs during the intake stroke of the engine.
What is a normally aspirated engine?
A naturally aspirated engine, also known as a normally aspirated engine or NA, is an internal combustion engine in which air intake is completely dependent on atmospheric pressure and does not use forced induction such as a turbocharger or a supercharger to increase performance. For the purpose of avoiding turbo lag, many sports vehicles are built with normally aspirated engines.
What happens when you put a turbo on a naturally aspirated engine?
Incorporating a turbocharger into a normally aspirated engine has no significant impact on how well the engine operates. In spite of this, air is still drawn into the combustion chamber, where it is combined with fuel and then combusted. The distinction is that the turbo is activated by the exhaust gases that are released by the vehicle.
What are the advantages and disadvantages of naturally aspirated engines?
The following are some of the advantages and disadvantages of a naturally aspirated engine in comparison to a similar-sized engine that uses forced induction: When opposed to forced induction engines, naturally aspirated engines experience more power loss at higher elevations (due to reduced air pressure). ask.cars.com, accessed September 02, 2008.
What is the difference between naturally aspirated and forced induction engines?
Advantage: A naturally aspirated engine requires minimal maintenance. A forced-induction engine is more sophisticated than a normally aspirated engine because of the forced-induction system. The fact that forced-induction uses hot exhaust air, and that compressed air is naturally hotter than non-pressurized air, necessitates the need for additional cooling.