Product information
*Even for the same vehicle model, it may not be possible to install the product depending on the grade and year. In addition, additional parts may be required for installation. Please be sure to check the detailed compatibility.HerePlease check more details.
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This is a specially designed product for the RX-7 that appropriately reduces the weight of mass-produced flywheels and reduces the moment of inertia by approximately 42%. It improves engine response while minimizing the impact on operability. Concerns about reduced durability due to the weight reduction have been addressed by using fully machined chrome molybdenum steel material with excellent thermal stability.>>Learn more
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Reduces the moment of inertia and contributes to improved response.
A flywheel is a part that absorbs torque fluctuations that occur during the engine's operating process and stabilizes rotation, and is attached to the rear end of the engine's crankshaft (or eccentric shaft in the case of an RE). In the case of lightweight flywheels for tuning, weight (mass) is generally used as an indicator of performance, but the magnitude of the moment of inertia, i.e., whether the mass is concentrated at the center of rotation or on the periphery, is the key to the engine's characteristics.
The moment of inertia is like a coefficient that determines the ease of rotation. If it is small, the response improves, but there are disadvantages such as stalling, lack of torque at low revolutions, and increased vibration. Conversely, if it is large, the rotation becomes smoother, but the response deteriorates. That's why it is difficult to strike a balance. In mass-produced cars, a large moment of inertia is unavoidable due to considerations of ease of handling and comfort, but there is room for improvement if the focus is on drivers who want a sense of unity with the car.
Our "sports flywheel" reduces the moment of inertia by 28-37% compared to mass production (for reciprocating engines). It is designed to provide quick accelerator response and stress-free operability that synchronizes with the driver's sensibility when driving on the street. It is made of chrome molybdenum steel, which has excellent thermal stability. If possible, we recommend installing it together with a clutch line to enhance the direct feeling when operating the clutch.
