![]() ![]() This is the delay between putting your foot on the accelerator, and the exhaust gases spinning up the turbine to a level that produces boost. However, turbochargers suffer what’s known as turbo lag. This is essentially using what was waste energy to add power to the engine, eliminating the parasitic loss inherent in supercharging.īecause they’re not running in lockstep with engine RPM, turbos can create large boost throughout the rev range if set up properly, making it easier to provide low-end torque without sacrificing as much top-end power. Turbochargers also compress air to feed into the engine, but instead of being run by a belt, the compressor wheel is spun by a turbine fed by the engine’s exhaust gases. A diagram of a typical turbocharger install on a gasoline engine. As the RPM of the supercharger changes with engine speed, if it’s set up to produce just enough boost up top, it’ll be a little underwhelming at low RPM. They also tend to have a powerband issue. It’s obviously less power than they add, but it is a parasitic loss that must be accounted for. Superchargers come with a drawback, however – they require a significant amount of power from the engine to run. Installation is also usually simple – involving an intake pipe, a few brackets and running a new belt and pulley. As your engine spins faster, the supercharger spins faster, producing more air pressure, or boost pressure, thus giving the engine more air to work with.īecause the supercharger’s output changes with engine speed, they’re great for providing a power boost while maintaining a predictable, linear power delivery from the engine. Superchargers are essentially air compressors that run off a belt connected to the engine’s crankshaft. Note the large toothed belt which turns the supercharger – this helps avoid belt slip. A large supercharger installed on a V8 engine in a drag racing car. We’ll be using the common automotive vernacular here, so those eager to bicker about terminology from the early 20th century aircraft industry best do it in the comments. The two most common ways of doing this are supercharging and turbocharging. With more air available, it’s possible to fully combust more fuel, creating more power. ![]() When we talk about forced induction, we’re talking about forcing more air into the engine under pressure. For those with a naturally aspirated car, here’s how you go about converting to forced induction. In addition to more grunt, you get a whole bunch of fun new noises, too. For those chasing a bigger number, forced induction is one of the most effective ways to achieve it. For those addicted to automotive thrills, there’s always an underlying lust for more power. ![]()
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