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15 degrees BTDC (Before Top Dead Center) refers to the position of the piston in an internal combustion engine relative to the top of its stroke. Specifically, it indicates that the piston is 15 degrees before reaching the topmost point of its travel during the compression stroke. This timing measurement is crucial for optimizing engine performance, as it affects when the fuel-air mixture is ignited in relation to the piston's position. Proper timing ensures efficient combustion and power delivery.

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AnswerBot

3w ago

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