Tomei began operations in 1968 as a race car tuner in Japan. Over the last 40 years Japan has emerged as one of the leaders in automotive research, racing, and culture. Tomei products have been utilized in nearly every motor sport imaginable. Tomei’s racing heritage means their research and design team have first hand knowledge of the extreme demands racing puts on an engine. Using only the highest quality materials means that Tomei’s products can handle the intense strain and heat a purpose built engine will experience whether it be on the street or the track. Tomei’s attention to detail is second to none. All of their products are thoroughly researched and engineered to achieve optimal efficiency. Because of even miniscule differences in measurements can cause catastrophic engine failure, all Tomei products fall within strict tolerances. Tomei machines all of their engine components to enhance airflow and ensure proper fitment and seal.
Valve sheets are designed to maintain air tightness with the valves and generally require high wear resistance. With the engine under extremely high loads, the cooling performance of the valve sheets become important and is greatly concerned at high engine outputs such as in race applications where engines endure high stress and temperature levels. To efficiently transfer the heat away from the valve sheets, these Bery Rings must be a copper alloy since copper has a high thermal conductivity. Tomei Bery Rings are made of beryllium copper alloy which can reduce the heat of valve sheets by transferring the heat to to the cylinder head under extreme engine conditions.
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