TSI stands for Turbocharged Stratified Injection. It is a fuel injection system that is used in some of Volkswagen’s gasoline engines. The TSI system was first introduced in 2006 and has since been used in a variety of VW models, including the Golf, Jetta, and Passat.
The TSI system combines the best features of both turbocharged and naturally aspirated engines. Like turbocharged engines, TSI engines have increased power and torque. However, unlike turbocharged engines, TSI engines do not have any lag when accelerating. This makes them more responsive and fun to drive.
How the TSI System Works
The heart of the TSI system is the turbocharger. The turbocharger uses exhaust gases to spin a turbine that forces more air into the engine. This extra air results in more power when combined with the right amount of fuel.
To prevent the engine from becoming overloaded with too much air, the TSI system uses a stratified charge. This means that the air-fuel mixture is injected directly into the combustion chamber in multiple stages. The first stage injects a small amount of fuel, which ignites and causes the air to expand. This expansion pushes some of the unburned fuel-air mixture out of the cylinder into what is called a pre-chamber.
In the second stage of injection, another small amount of fuel is injected into the pre-chamber. This ignites and causes a pressure wave that forces the remaining unburned mixture in the cylinder to detonate. This creates a more complete combustion that results in increased power and efficiency.
Volkswagen TSI System
TSI is an acronym that stands for Turbocharged Stratified Injection. It is a type of fuel injection system that is used in some Volkswagen gasoline engines. The TSI system was first introduced in 2006 and has since been used in a variety vehicles, such as Golfs, Jettas, and Passats. The benefits of a TSI engine include increased power and torque without experiencing any lag when accelerating. If you own a Volkswagen with a TSI engine, now you know what those letters mean!