High performance engines require upgraded and improved cooling systems for maximum reliability. Here’s a handy new part from Cosworth for Honda units such as the K20a.


One important component of the upgraded cooling system is a thermostat that opens to allow coolant passage through the engine and cooling system at reduced temperature compared to the original equipment thermostat. Reducing the temperature by approximately 10-15C compared with that of a standard thermostat, the Cosworth LowTemp Motorsport Thermostat for the Honda K20-K24 DC5, EP3 improves coolant circulation through the engine by starting the process earlier than the original equipment.
These thermostats are engineered with the optimum temperature range in mind for high performance racing use as it is very easy to over-cool the engine by either removing the thermostat completely or using a thermostat that is not designed for the specific application. Additionally, over-cooling can cause engine damage by preventing critical engine components from reaching their ideal operating temperature, altering the required clearances for safe operation.
Another important feature of Cosworth LowTemp Thermostats compared to other brands is the ability to precisely control the flow of coolant when the valve opens. Inferior brands allow the coolant to surge thereby causing unstable temperatures and even temperature fluctuation that can cause severe engine damage and make it difficult to properly tune or calibrate the engine.
More from www.cosworth.com or 01604 598 300 ENDS.