Used Car Warranties by Click4Warranty

There are those among us who will always see a car merely as a means of getting from A to B. For others, motoring can be a hobby, a passion and indeed a way of life. Somewhere in the middle are those of us who would be more interested in the intricacies of the modern motor vehicle, if only we knew just what it all meant! Here then, we begin a series of items which will attempt to demystify some of the terms which you may come across within your used car warranty policy. We hope that you find them illuminating reading...

A super charger, like a turbo, is a form of forced induction system. Usually, the supercharger is used for an internal combustion engine. The difference is that of its power supply. With a supercharger, there is a belt that connects it directly to the engine as it receives the power as a water pump or alternator would, therefore increasing the engine's power by pumping air into the combustion chambers. Combustion is not limited by the fuel being injected, but by the amount of air the engine can suck in to mix with the fuel. By forcing air into the engine's intake, it forms at a higher-than-atmospheric pressure, allowing more fuel to be burned, which results in increased power.

This is of a great advantage to the supercharger, because it will increase the power of an engine of any given size, making them useful in vehicles that wouldn't be able to hold a large engine. Unfortunately despite their ease in installation, they are often extremely costly, can be complex and they do decrease the fuel economy.

A supercharger can come in two different types - positive displacement and dynamic displacement. Positive displacement superchargers push air into the engine at a constant speed, while the dynamic supercharger uses velocity to manage the air pressure. In both cases, the oxygen is compressed as it is delivered to the engine. It therefore gives more power from every explosion in the combustion chambers. There are 3 sub- types; a root type supercharger and twin-screw type supercharger are positive displacement, and the centrifugal type supercharger is a dynamic supercharger.

A mechanically powered supercharger can cause a shortened engine life, particularly if it is installed incorrectly. A supercharger should never be installed into a normally aspirated car until the engine has been altered. This is due to the lower level of compression required because of the amount increased power. Before installing a supercharger, you should also research the possible effects the alteration will have on your extended warranty cover, if applicable.

A mechanically powered supercharger is usually more superior than a turbocharger. This is because the supercharger's power is derived directly from the engine itself, giving no delay before the device starts compressing the intake air, where as the turbocharger, has to wait for the exhaust gases to build up to power the compressor. A mechanically powered supercharger doesn't have the heat-related problems of a turbocharger, enabling it to run at a better and greater efficiency. A supercharger is potentially able to increase a car's mpg when used in a small car with a small engine.

Copyright © 2008 Click4Warranty
The opinions expressed are those of the author and are not necessarily held by the Click4Group unless specifically stated. The material is for general information only. Always obtain independent, professional advice for your own particular situation.

Extending a car warranty will help protect you the car buyer against the unforeseen costs of the unexpected failure of specified components of the car.

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What is a Super-Charger?