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.Titanium construction for added durabilityLightweight design, 4.4 Grams lighter than stock
Titanium valve spring retainers are an indispensable part or any high powered, high speed engine. The combination of Tomei high lift camshafts and oversized valves will greatly increase the fuel flow rate into the combustion chamber. When upgrading the Valves to cope with the new high lift camshafts it is also a requirement to upgrade the Valve Springs to suit the new setup. High engine speeds and the dynamic movement of the valve trains mass can cause unwanted stress loads. This can cause abnormal movements such as a Valve jump or Valve bounce which can cause engine failure. Tomei Retainers are made from Titanium alloy for added weight reduction whilst maintaining the high strength properties and precision required for the nature of its use. This will help keeping the Valves under control and secure the Valve in place during extreme race conditions. Failure to upgrade valve retainers can lead to increased engine wear and possibly catastrophic engine failure if the valve contacts the piston.
Mr. Seiichi Suzuki initially forged Tomei is a tuning factory for race cars back in 1968. From that day on, Tomei achieved excellent results in various motor sports categories. Tomei was then recognized for its technology, performance and reliability that we had cultivated into our own design products and had a large support base from motor sports end users and tuners.
With the new market trends and demands, motoring enthusiasts wanted better performance to suit the new modern lifestyle. This trend helped set the stage where originality can play an active part in the motor sports scene and personal motoring lifestyle.