About the Circuit
Usui Pass is a historic mountain pass connecting Gunma with Nagano. It's the territory of Impact Blue, the all-female duo formed by Mako and Sayuki. Their Nissan Sileighty is perfectly adapted for the technical curves.
Track Layout
Real name: Usui Toge (碓氷峠)
Technical Specifications
Length
7.2 km
Elevation
380 meters
Corners
42 technical curves
Surface
Old but functional asphalt
Difficulty
High
Type
Technical medium-radius curves
History
Usui has been a crucial pass for centuries, used on the Nakasendo. Impact Blue chose this pass for its technical curves that favor light and agile vehicles.
Key Points of the Route
The Glasses Bridge - Iconic historic structure
The Love Curve - Where Mako and Sayuki perfected their technique
The Abandoned Tunnels - Old railway line
The Valley Viewpoint - Spectacular view
The Nagano Entrance - Final section
Skills to Master
Impact Blue Drivers
Mako Satō
Líder del Equipo y Piloto Principal
Vehicle
Nissan SilEighty
250 CV
Sayuki
Copiloto y Navegadora
Vehicle
Nissan SilEighty
250 CV
Circuit Dangers
Old road with irregular maintenance
Frequent blind curves
Truck traffic toward Nagano
Frequent frost in winter
Unlit areas
Trivia
- Impact Blue is composed only of women
- The Sileighty is Silvia front, 180SX rear
- Mako and Sayuki are childhood friends
- The pass has over 400 years of history
- The abandoned tunnels are now a tourist attraction