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monty37
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In what way does the VTG help reduce turbo lag at low speeds? and can the lag be eliminated completely?
monty37 said:The link says "VGTs have a minimal amount of lag, have a low boost threshold, and are very efficient at higher engine speeds" so that's what I asked. And may I know what you mean by geometry control being fine grained?
monty37 said:The control has mainly got to do with the ECU then right?
A VTG (variable turbine geometry) is a type of turbocharger that uses variable vanes to control the airflow into the turbine. This allows for faster spooling of the turbo, reducing the amount of time it takes for the engine to reach its peak power.
Turbo lag is the delay between when the driver presses the accelerator and when the turbocharger provides a noticeable increase in power. It is important to reduce because it affects the responsiveness and performance of the engine, making it less efficient and slower to accelerate.
A VTG is more effective at reducing turbo lag compared to other methods such as twin-scroll turbochargers or wastegates. This is because the variable vanes allow for precise control of the airflow, resulting in faster spooling and reduced turbo lag.
No, using a VTG does not have any negative effects on the engine. In fact, it can improve the engine's overall efficiency and performance by providing more power at lower RPMs.
One potential downside of using a VTG is the added complexity and cost compared to traditional turbochargers. Additionally, some drivers may experience a different driving feel due to the precise control of the variable vanes.