Mini 4WD Hyper-Dash 3 Motor Guide
Hyper-Dash 3 (15477) is Tamiya's usual Mini 4WD race motor: 17,200-21,200 RPM, 1.4-1.9 mN·m, 1.6-3.0 A. Gear pairing, the PRO twin, and J-CUP 2026.
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Browse available alternativesThe Sprint-Dash Motor is a high-revving Mini 4WD motor intended for courses with long straights, where top speed matters more than acceleration off the line. It is identifiable by its grey end bell and uses carbon brushes for durable, consistent performance. It is catalogued as Mini 4WD Grade-Up Parts No.318.
It belongs to Tamiya's long-running "Dash" motor family — the same naming lineage as the Hyper-Dash and Atomic-Tune motors — one of the older, established lines in the Mini 4WD range, predating the newer AO spare-parts numbering. Unlike the metal-plate brushes used in more recent race-tuned motors such as the Torque-Tuned 2, the Sprint-Dash uses carbon brushes, an older and simpler design generally valued for quieter, more durable running rather than outright electrical efficiency. As a single-shaft, rear-can motor it's a straightforward swap into any standard chassis's single motor mount, and its Grade-Up Parts numbering places it among Tamiya's long-standing catalogue of individually-boxed upgrades rather than a limited, event-exclusive release.
Hyper-Dash 3 (15477) is Tamiya's usual Mini 4WD race motor: 17,200-21,200 RPM, 1.4-1.9 mN·m, 1.6-3.0 A. Gear pairing, the PRO twin, and J-CUP 2026.
Ultra-Dash (15307) publishes 24,000-27,500 RPM and 4-5 A. Why official Tamiya races exclude it, what it does to AA cells, and when a club may still allow it.
A practical Tamiya motor chart starts with the course, not a fastest claim. Compare motor families, current draw and gear matching, then confirm race legality.