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Knowing the precise volume and capacity of combustion chamber is necessary to enhance combustion within the engine.
Traditional method used by GM Global Propulsion Systems expected dismantling and the cleaning up of the engine, in order to measure volume in dry conditions.

Innovative application of Ntek measurement system allowed to GM Global Propulsion Systems to measure capacity of every dimensions diesel engine, inserting an Injector in the cylinder head, in dry condition, in few seconds.
Instead of using the spark plug within the assembled engine, are used special adaptors to insert the injector and measure volume of combustion chamber through sinusoidal waves. This system has completely solved engine opening issue.