How Superchargers Work

When race car designers and automotive engineers look at a car

, they usually want to get more horse power out of it without increasing engine size and weight. The best way to do this would be to optimize the engine and make it more efficient without adding bulky parts. One of the best ways to do this would be to install a supercharger or turbocharger. Superchargers and Turbochargers can provide 50-100% more horsepower with only a little added weight.

How Superchargers and Turbochargers Work

Internal combustion engines work by mixing fuel and air and creating explosions that drive pistons and thus the drive train. By increasing air pressure, you are able to add more air to the engine's combustion chambers and, in turn, you are able to add more fuel. An increase in fuel will increase the explosive power which increases the horse power of the engine without changing the actual engine. Superchargers and turbochargers are basically engine air compressors. The supercharger is powered by a engine belt or a chain from the crankshaft while a turbocharger gets its power from the engine's exhaust. The compressors are designed to spin at insanely high speeds, often much higher than any speed an engine reaches.

Supercharger Designs

The first supercharger designs are called the Roots Supercharger. This is the general air blower mechanic design that pushes more air into the engine. This is the least efficient design because it is large, heavy, and does not smoothly transfer the air. The twin-screw supercharger is a slightly more efficient design but is noisy and more intricate thus harder to manufacture and more expensive. The most common design is the centrifugal supercharger which is light weight and currently the most efficient.

Superchargers vs. Turbochargers

Since turbochargers use the engine exhaust to power the compression system there is sometime a lag between increasing the engine revolutions and feeling the equivalent boost in power. Superchargers are powered directly from the crankshaft and therefore do not have to worry about this. Also, turbochargers require a significant change to the exhaust system in order to be installed. Superchargers are installed simply on the top or front of the engine and do not require much restructuring of the engine leads. These are things to consider before purchasing a possible pricey supercharger or turbocharger.

Supercharger and Turbocharger Brands

Some of the most popular supercharger brands are Kenne Bell and Vortech. Kenne Bell is very efficient and popular for engines under 500 horsepower. This brand is commonly suggested for Ford Mustangs. If you're in the market for turbochargers you should check out Turbonetics or Tomei Amrs. Turbonetics is a popular brand that provides high performance at high RPMs while still deterring backpressures caused by powering the turbocharger.

Hopefully you are now more informed on your options in boosting horsepower in your engine. This is generally a mid-sized investment. Now you know how superchargers and turbochargers work, how they're designed, the difference between superchargers and turbochargers and, lastly, the popular brands to start your search. There are many online communities out there to help you further if you should need to ask questions and receive personalized responses.

by: Richards

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