What is the steering ratio of the Supra?
The steering system in the current Toyota Supra is a variable-ratio electric power steering setup, meaning there isn’t a single fixed steering ratio published by Toyota.
In everyday driving, the effective ratio typically sits in the mid-teens, and it tightens further in Sport modes for quicker response. Exact figures can vary by market, trim level, and wheel/tire package.
How steering ratio works in the Supra
Steering ratio measures how far the wheels turn relative to a turn of the steering wheel. A lower ratio yields quicker steering, while a higher ratio requires more wheel rotation for the same wheel movement. In modern performance cars like the Supra, electronic assist and steering calibration allow the ratio to change with drive mode and speed, without the driver noticing a fixed number on the dashboard.
Current Supra configuration and mode effects
The GR Supra uses an electric power steering system with variable ratio. Toyota does not publish a fixed unitless number, but reviews and technical briefings indicate the following typical ranges.
Mode-specific guidance
- Normal mode: roughly 15:1 effective ratio, offering a balanced feel for everyday driving.
- Sport mode: roughly 13–14:1 effective ratio, delivering a more direct, quicker steering response.
Note: Actual feel can vary with wheel size, tire type, and market; some models may feature slightly different target ranges depending on calibration.
Historical context and what to expect
In older Supra generations, steering systems varied between models but generally used assist systems that produced a mid-to-high teens ratio. The modern GR Supra emphasizes agility via its EPS calibration and drive-mode-dependent feel, rather than a single fixed ratio.
Summary
The Toyota Supra does not have a single fixed steering ratio. Its current GR Supra uses a variable-ratio electric power steering system that tightens from about 15:1 in Normal to around 13–14:1 in Sport, with possible minor variation by market and wheel setup. This design aims to balance ease of parking and highway stability with quick, responsive cornering on spirited drives.
