Parallel Twin Turbo

"Parallel Twin Turbo" refers to a specific configuration in turbocharged engines where two turbochargers are used in parallel to increase engine performance. Here's how it works:

1. Twin Turbo Configuration: In a twin turbo setup, two turbochargers are employed to compress air and force it into the engine's combustion chambers. This increases the amount of air (and hence oxygen) available for combustion, allowing more fuel to be burned and thus generating more power.
2. Parallel Configuration: In a parallel twin turbo setup, each turbocharger is responsible for boosting air intake for half of the engine's cylinders. For instance, in a V8 engine, each bank of four cylinders might be paired with its own turbocharger. This configuration helps to reduce turbo lag and improve throttle response compared to a single larger turbocharger.
3. Benefits: Parallel twin turbos can provide a balance between responsiveness (due to smaller turbochargers) and high-end power (due to increased airflow). They are often used in high-performance vehicles where quick acceleration and high power output are desired.
4. Examples: Many automotive manufacturers, such as BMW, Audi, and Porsche, have used parallel twin turbo setups in their engines to achieve a combination of performance and efficiency.

Overall, parallel twin turbochargers are a technology used to enhance the power and efficiency of internal combustion engines by increasing the amount of air delivered to the engine under pressure.