Intercooling reduces __________, creating a powerful air/fuel charge.

Intercooling reduces __________, creating a powerful air/fuel charge.

• A. Engine knock
• B. Intake air temperatures
• C. Fuel pressure
• D. Compressed air temperatures

Answer: (D)

Intercooling lowers the temperature of the air after it’s been compressed by the turbocharger or supercharger. Cooler, denser air means more oxygen mass can fit into each intake charge, so more fuel can be burned efficiently and more power can be produced. The intercooler’s job isn’t just cooling ambient intake air; it specifically targets the compressed air leaving the compressor, so the resulting compressed air temperatures drop. While reduced charge temperatures can help mitigate engine knock, the primary reason this creates a more powerful air/fuel charge is the increased air density from cooler compressed air.

Intercooling lowers the temperature of the air after it’s been compressed by the turbocharger or supercharger. Cooler, denser air means more oxygen mass can fit into each intake charge, so more fuel can be burned efficiently and more power can be produced. The intercooler’s job isn’t just cooling ambient intake air; it specifically targets the compressed air leaving the compressor, so the resulting compressed air temperatures drop. While reduced charge temperatures can help mitigate engine knock, the primary reason this creates a more powerful air/fuel charge is the increased air density from cooler compressed air.