Is it possible for a 1.8L engine to be turbo?

Yes, it is possible for a 1.8L engine to be turbocharged. Turbocharging is a method of increasing the power output of an internal combustion engine by compressing the intake air before it enters the combustion chamber. This increased pressure allows more oxygen to be forced into the cylinder, resulting in a more powerful combustion event.

Turbochargers are typically driven by the exhaust gas from the engine, which spins a turbine wheel that is connected to the compressor wheel. As the exhaust gas flows through the turbine, it causes the turbine wheel to spin, which in turn drives the compressor wheel. The compressor wheel then compresses the intake air and forces it into the engine's cylinders.

Turbocharging is a common performance upgrade for many different types of engines, including 1.8L engines. By increasing the boost pressure, it is possible to significantly increase the power output of a 1.8L engine.