In which scenario would a high-performance supercharger typically require the use of an intercooler?

A high-performance supercharger typically requires the use of an intercooler under high load at elevated temperatures because of the increase in air temperature that results from compressing the intake air. Compressors raise the temperature of the air significantly as it is compressed, which in turn reduces its density and can lead to a higher likelihood of knocking and reduced performance. An intercooler cools this compressed air before it enters the engine's combustion chamber, thus increasing its density. This allows for a larger volume of air to enter the engine, improving combustion efficiency and enhancing overall performance.

In high load or elevated temperature scenarios, the need for an intercooler becomes critical to prevent potential engine damage and to maintain the desired performance characteristics. The intercooler works to lower the intake air temperature, improving the engine's volumetric efficiency and allowing the supercharger to operate effectively without negatively impacting performance or reliability.