Description
Koyorad Radiator Cap
This Koyo radiator cap has a higher pressure rating of 1.3 bar which increases the boiling point of water and relieves high performance engines of excessive heat. A genuine Koyo rad cap is recommended for use with all Koyorad performance radiators (when applicable). Koyo radiator cap are manufactured in Japan from high quality components to ensure longevity and performance from your Koyorad Racing radiator.
Why is increased Pressure Better?
It’s simple. When water is pressurized, its natural boiling point is increased. Most modern vehicles are equipped with a 0.9 Bar pressure cap. Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 ° Fahrenheit. That is nearly a 56 ° increase over water’s normal boiling point. By increasing the boiling point of water, an engine’s cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.
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