Cooling Fans
At speed, most performance vehicles get enough airflow through the grille to keep the engine cool. But even race cars are driven slowly and idle at times, and during such intervals the airflow through the radiator generated by the factory cooling fan may be insufficient to dissipate the heat produced by high compression or forced induction high RPM engines. As a result, too much heat will remain in the radiator and engine coolant, which can result in an overheated engine and expensive component damage.
A performance cooling fan will provide the airflow needed for optimal heat transfer, and no matter whether you want to change over from a belt-driven fan to an electric fan, or upgrade your present electric fan to a larger, higher CFM (Cubic Feet per Minute) unit, we have the performance cooling fans for the job. Our selection includes single and dual electric fans, in a range of sizes and CFM ratings, as well as mechanical fans with flexible and rigid blades, and for use with a fan clutch.
Electric fans provide superior cooling airflow at low engine RPM when a belt-driven fan is turning slowly. They operate in response to engine cooling needs, not according to engine speed, which allows the engine to come to operating temperature faster and then remain within the optimal temperature range for efficient engine operation. Plus an electric fan eliminates the mechanical fan’s load on the engine, allowing more horsepower to be sent to the drive wheels, and reducing strain on the water pump. Electric fans can be mounted as “pusher” fans in front of the radiator, which is typical when used to supplement a mechanical fan, or more commonly on the engine side of the radiator, as “puller” fans.
An electric fan’s CFM airflow rating should be matched to the engine’s power output, with a mild street engine generally needing less CFM than a mega horsepower track beast. A single fan should cover as much of the radiator core as possible, and if radiator dimensions make this impossible then a dual fan may be a better choice. Electric fans are available with and without shrouds. Fan controllers can be set up to enable fan actuation within a wide range of temperatures, to automatically turn the fan on when A/C is activated, and to allow manual override. We offer both direct fit and universal electric fans, and many are thin, low profile designs that enable mounting where space is at a premium.
But if you have a belt-driven fan, you don’t have to switch to an electric fan to improve airflow through the radiator. We have larger diameter fans, many with more blades than standard fans, for fan clutches, in standard and reverse rotation. If you want to eliminate the fan clutch and potential slippage, we offer both flex and rigid fans in a range of diameters, in both standard and reverse rotation. Flex fan blades, available in stainless steel or aluminum, are curved to provide airflow at low RPM, and then flatten out when the engine revs to reduce drag and improve performance. Our rigid fans will improve airflow at all RPMs, and we have spacers to ensure the fan is properly located in the shroud.