What is forced induction

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Two clicks install ». Quiz Are you a words master? Like a supercharger, a turbocharger is designed to increase the amount of compressed air into an engine. Think of it like this, a turbocharger is, more or less, like a mouth blowing air onto a fire to get a flame going. Typically, both a turbocharger and supercharger will pump around eight pounds per square inch 8psi of compressed air into the engine. This is around twice normal atmospheric air pressure which is The pressurised and compressed air produced is then forced into the cylinders which, along with more fuel being injected allows more power to be produced because of the bigger explosion.

Older turbochargers tended to be larger and thus slower to spin up. Modern units, on the other hand, are smaller, have reduced friction because of new engineering processes and materials used and thus start spinning sooner.

Go too small with the turbocharger, though, and it can become its own worst enemy, spinning too fast as engine speeds increase. Some car makers have taken to fitting their engines with two turbochargers twin charging , a smaller one to provide boost at lower speeds and a larger one that takes over as speed increases.

Both petrol and diesel engines are what we call internal combustion engines. But the combustion is produced in different ways. As diesel has a much higher burning point than petrol, a diesel engine relies on the compression of the fuel and air mixture, inside the cylinder, anywhere from 14 to 20 times its original volume a petrol engine tends to compress its fuel and air mixture much less than that.

This compression causes a spontaneous combustion and forces the piston back down. No spark plug required. That said, older model diesel engines used to feature glow plugs to pre-warm the air in the cylinders. Fuel consumption can also be reduced. Because of their design and combustion methods, diesel engines tend to produce their power and torque lower in the rev range below rpm than an equivalent petrol car which tends to produce peak power and torque higher in the rev range above rpm.

There are widely considered to be three basic benefits to turbocharging an engine. What mods and how much will depend on the engine and the application.

Street engines, on the other hand, spend most of their time running under relatively light loads and only occasionally are called upon to produce maximum power. But they are expected to last tens of thousands of miles without any major problems. So it can be argued that engine durability is just as important for both types of power adder applications. The upgrades that are necessary to handle power adders will depend on the engine and the power level the engine is built to produce.

Most stock block V8s can safely handle to extra horsepower on the street without encountering any major problems. Hydro-boost brake boosters use the pressure of the power steering pump to power the brake booster. These systems can be mysterious to the untrained technician because part-swapping will not solve some brake issues.

Hydro-boost was first introduced to solve issues associated with…. Adding on a larger carburetor, throttle body or multiple carburetors that can flow more cubic feet per minute cfm of air, or maybe boosting airflow with a turbocharger or…. Related Information. Hydro-Boost: The Non-Vacuum Booster Hydro-boost brake boosters use the pressure of the power steering pump to power the brake booster. Read More. Quality Brands.