MTX4 Low Mass Flywheel MTX3-028 by 3Racing  [MTX3-028]

Mugen Seiki MTX4 Light Weight Fly Wheel - 3Racing MTX3-028
Price:
USD$14.90
Brand:
3Racing
Model:
MTX3-028
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Technical overview for MTX4 lightweight flywheel

This MTX3-028 flywheel is engineered as a lightweight replacement for the Mugen Seiki MTX4 platform. By lowering rotating mass the component reduces flywheel inertia, resulting in faster engine rev-up and a changed throttle transition profile useful for competitive tuning.

Service instructions: remove the bodywork and the clutch assembly per MTX4 service procedure, replace the original flywheel with MTX3-028, and secure using the original retainer hardware. After installation, perform a clutch timing verification and adjust torque settings to maintain consistent engagement under load.

Tuning implications: the reduced inertia alters clutch engagement rpm and transient response, which can improve throttle modulation when paired with appropriate clutch spring and shoe selections. Introduce changes incrementally and validate on the track to optimise drivability.

What is the primary effect on engine response?

Lower inertia reduces stored rotational energy, allowing the engine to accelerate faster during throttle application, which sharpens transient response.

How should clutch settings be changed?

Expect earlier engagement; consider slightly heavier springs or revised shoe timing to move engagement point back if required for traction and durability.

Any recommended break-in or checks?

Inspect the flywheel and hub for fit and runout after fitting, then perform controlled test runs while monitoring clutch behaviour and engine response.