What is an aftermarket super charger and why you might want one.


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What is an Aftermarket Super Charger?

A Wikipedia definition is: A super charger is an air compressor used for forced induction of an internal combustion engine. Wow. What does that mean? If you want more power from your accord, read on. Let's take a look at some background information. As you may know both air and fuel are delivered, by various means, to the cylinders of an automobile. Once in the cylinders pistons compress the mixture and then the sparkplug or glow plug on a diesel engine ignites the mixture which pushes down the piston and produces power from the engine.

Putting more fuel alone in the engine may be one way to increase power, but there is a better way. Air contains oxygen, which is what helps the fuel to burn. The super charger forces more air with more oxygen into the engine, and the fuel system adds more fuel. You therefore get a more powerful explosion or burning in the cylinders and more power is produced with the super charger. So bottom line, if you want more power from an engine, adding a super charger is one way to do so.

A super charger is typically powered by the engine usually with a drive belt. Some super charger systems have used a chain or a gear to drive the super charger.
There are some potential problems with installing an aftermarket super charger. If the installation is not done correctly it may shorten engine life. Another potential problem with supercharging is the compression ratio of the engine. Typically a super charger engine should have a lower compression ratio than a naturally aspired vehicle. The problem is that sometimes the super charger is added without changing the compression ratio of the pistons. This can lead to major engine damage if the initial engine compression, before the super charger installation, was too high.
On the plus side, besides an increase in power, a super charger application, like adding one to a small car with a small engine, can result in an increase in gasoline mileage. This is even after the increase in fuel use while the super charger is compressing the air.

Yahoo Automotive News

7/29/2010 -	Toyota recalls 412,000 cars in US, 16,000 in Japan (AP) AP - Toyota is recalling 412,000 passenger cars, mostly the Avalon model, in the U.S., and another 16,420 vehicles in Japan for steering problems, the automaker said Thursday.
7/29/2010 -	Volkswagen's Q2 profit up strongly at $1.6B (AP) AP - Sales at Volkswagen AG motored ahead in the second quarter, thanks in part to strong demand from China and helping to push earnings sharply higher to euro1.25 billion ($1.6 billion), the company said Thursday.
7/29/2010 -	China govt approves Geely acquisition of Volvo (AP) AP - Geely Holding Group has received final Chinese government approval to acquire Volvo Cars from Ford Motor Co., the Commerce Ministry said Thursday.
7/29/2010 -	Nissan posts $1.22 bln first quarter profit (AFP) AFP - Japan's number three automaker Nissan Motor on Thursday announced a soaring quarterly net profit on sales of cars in Asia, stronger auto demand in the United States and cost cuts.
7/29/2010 -	Nissan returns to profit, Mitsubishi reduces loss (AP) AP - Nissan Motor Co. veered back into the black in its latest quarter as global car sales rebounded while its smaller rival Mitsubishi Motors Corp. narrowed its quarterly loss.
7/29/2010 -	Toyota says to recall 412,000 cars in the U.S. (Reuters) Reuters - Japan's Toyota Motor Corp said on Thursday it would recall 412,000 high-end passenger cars in the United States to fix steering problems.
7/29/2010 -	Nissan returns to profit on sales growth (AP) AP - Nissan Motor Co. veered back into the black in its latest quarter as global auto sales rebounded, putting the company on track to meet its yearly profit target.
7/29/2010 -	Nissan and Hyundai profits soar as U.S. and China seen slowing (Reuters) Reuters - Nissan Motor Co (7201.T) and Hyundai Motor Co's (005380.KS) forecast-beating quarterly profits may prove tough to match in the second half as robust sales in China and elsewhere start to slow.