Intercooler's cool the compressed, heated air charge before it enters the engine's combustion chamber. This cooled air charge increases the engine's horsepower.
Hot air is thinner and contains less oxygen than cold air does. By cooling the air, we increase the number of oxygen molecules in the charge.
Cooled air increases horsepower and prevents detonation. If a supercharged engine detonates while accelerating, an inspection of the intercooler is in order.
Liquid cooled intercooler's consist of the intercooler, a radiator and the piping and tubing in between. Their leak tested with a cooling system tester fitted with a special adapter.
Intercooler's are found between the supercharger and the engine's intake manifold. A leak in the intercooler can result in white colored exhaust. This is because coolant burns white in the combustion chamber.
Performance engine's stress and prematurely wear the engine oil as well. Most supercharged and many turbocharged applications require an oil cooler and an intercooler. Many parts on these engines are reinforced to withstand these additional pressures.