Will High Intake Air Temperature Affect Engine Power?

1 Answers
HectorLee
07/30/25 4:57am
High intake air temperature can indeed affect engine power. Elevated intake air temperature reduces the density of oxygen, which in turn leads to a decrease in engine power output. If the intake air temperature becomes excessively high, it may also cause engine knocking. Severe knocking can result in connecting rod deformation and piston fracture. Knocking is a highly detrimental abnormal combustion phenomenon in an engine. When the piston moves upward to compress the air-fuel mixture, both the pressure and temperature of the mixture increase. If the mixture ignites spontaneously before the spark plug fires, this is known as knocking. During this occurrence, the piston is moving upward while the combusting mixture exerts downward force on it, causing a reduction in engine power.
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