Sequential-Turbo Manifold

Wiki Article

Sequential turbocharging is a forced induction technique that optimizes engine performance by utilizing both a smaller (primary) turbocharger and a larger (secondary) turbocharger. This innovative approach ensures a swift and responsive initial boost, followed by a continuous supply of compressed air across the engine's power band.

In the sequential turbocharging process, all of the exhaust gas generated by the Internal Combustion Engine (ICE) is initially directed towards the primary turbocharger. After passing through the primary turbocharger, the exhaust gas flows seamlessly to the secondary turbocharger without interruption, known as the "secondary priming phase." During this phase, the primary turbocharger reaches its peak efficiency in terms of its compressor MAP (Manifold Absolute Pressure), while the secondary turbocharger enters its effective compressor MAP range.

Once the secondary turbocharger is efficiently primed according to its MAP, and the primary turbocharger can no longer effectively utilize additional exhaust gas according to its MAP, the bypass valve(s) on the sequential-turbo manifold gradually open. These valves respond to the pressure within the manifold and are designed to allow a high-volume, uninterrupted flow of exhaust gas towards the secondary turbocharger while bypassing the primary one. This intelligent valve operation ensures stable boost control and turbocharging efficiency throughout the engine's RPM range.

Prior to the introduction of the Patented Universal Hlava Sequential Turbo-Manifold, achieving this level of efficiency and effectiveness in sequential turbocharging was a challenge. While the concept of sequential turbocharging existed previously, it was primarily limited to OEM-designed applications and lacked universality across different engine types and fuel sources. With the Hlava Sequential-Turbo manifold, masterminded by Andrew Hlava, any forced-induction ICE engine, regardless of its fuel type, can now embrace Sequential Turbocharging. This advancement eliminates the need for additional components like wastegates or electronic boost control systems, making it a game-changer for turbocharging efficiency and performance.