The use of a "3-way", thermostatic valve set at 48°C in the cooling circuit does not have a major impact on an engine's performance, but it offers significant technical benefits, optimizing overall engine performance and reliability. This component allows the engine to warm up more quickly in the first few laps you go out on the track (especially during winter, with weather conditions characterized by low temperatures) and allows you to more precisely manage the temperature of the powerplant itself, ensuring that it always operates within the ideal operating temperature range. The fact that it is "3-way", makes it possible to create a water circuit, alternative to the full circuit, which still allows water to flow through the engine and water pump, excluding only the radiator. This allows the volume of water in the engine to circulate by entering at the correct temperature (heat is removed from hotter areas such as the head and distributed to cooler areas, such as the crankcases). As the water temperature rises toward 48°C, the valve slowly opens the passage to the radiator, allowing the volume of cold liquid in the radiator to gradually begin circulating, thus mixing with the already partially heated water. In this way, the engine is not flooded with cold water abruptly, and this prevents deformation that could cause serious breakage. When the coolant reaches 48°, the valve closes access to the by-pass created with the pipe and tee fitting and diverts the entire flow to the radiator.

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