Increasing Compression Ratio

The cycle of a typical internal combustion engine is called the four-stroke cycle. The piston rises and compresses the fuel air mixture before the spark ignites it. This increases the pressure and heat of the mixture near to its auto-ignition point. This will enable the mixture to burn at its fastest and consequently the fuels energy will be most efficiently harnessed. However if the compression ratio is increased too much then detonation could occur.

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