Friday, March 2, 2012

COMPRESSION RATIO

What is a compression ratio??
                                              An engine is basically a pump which squeezes in air/fuel mixture and then ignites it. So that it expands back and produces mechanical energy. The compression ratio is basically telling you how much the engine squeezes a certain volume of air that it intakes. So a bike with a compression ratio of 12:1 means that for every 12 ounce volume of air that is sucked in, the piston squeezes that air to 1 ounce volume. the more air that is squeezed into the piston the more energy that is produced per engine capacity on the expansion stroke.

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