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But how does cold weather affect the speed of turbo cars? Cold air, being denser than warm air, contains more oxygen molecules per unit volume. Since combustion requires oxygen , a turbocharged engine benefits from cold air because it allows more fuel to be burned, leading to increased performance.
This means that the parts of the engine and the turbo will suffer greater friction and therefore greater wear in use. As the temperature of the lubricant increases, it becomes more liquid and penetrates better into the parts so that they do not suffer damage when they rub against each other.
Feb 23, 2022 · According to GM TechLink, extremely cold weather conditions, that is, temperatures 0 degrees Fahrenheit / -18 degrees celsius or lower, may result in the charge air cooler (or CAC,...
Apr 28, 2024 · One critical aspect that can have a detrimental effect on turbos is heat. Manufacturers have developed advanced cooling systems to reduce the impact of high temperatures on turbos.
tl;dr: Cold dry air has a substantial effect on horsepower. This can be confirmed through experimentation on any modern car. I can think of two scientific reasons as to why this may be:
Cold temperatures affect your battery’s ability to deliver power to the starter motor, making it harder for the engine to crank. Additionally, chemical reactions within the battery that produce electricity needed to start your vehicle are slower in the cold.
