Free Setup Guide
Ray Formula 1600
Okayama International Circuit - Full Course
iRacing
Updated Jul 28, 2026
// AI Setup Engineer
TYRES
- Slick compound, Front 24.5 PSI, Rear 23.5 PSI, no tyre blankets available (car has no heaters) — target hot pressures 26–27 PSI front, 25–26 PSI rear after out-lap.
ELECTRONICS
- TC: N/A (car has no traction control), ABS: N/A (no ABS), Engine braking: fixed (no adjustment), Brake Bias: 54.0% front (cockpit adjustable, start point for qualifying lap)
SUSPENSION
- // FRONT
- Ride Height: 28 mm
- Wheel Rate FL / FR: 32000 N/m / 32000 N/m
- ARB: 1100 N/m
- Brake Torque Multiplier: 100%
- Brake Bias: 54.0%
- // REAR
- Ride Height: 45 mm
- Wheel Rate RL / RR: 28000 N/m / 28000 N/m
- ARB: 750 N/m
- Diff Preload: 30 Nm
- Diff Coast: 0.35
- Diff Power: 0.55
DAMPERS
| Slow Bump | Slow Rebound | Fast Bump | Fast Rebound | |||||
|---|---|---|---|---|---|---|---|---|
| FL | 3200 Ns | m | 4800 Ns | m | 1600 Ns | m | 2400 Ns | m |
| FR | 3200 Ns | m | 4800 Ns | m | 1600 Ns | m | 2400 Ns | m |
| RL | 2800 Ns | m | 4200 Ns | m | 1400 Ns | m | 2100 Ns | m |
| RR | 2800 Ns | m | 4200 Ns | m | 1400 Ns | m | 2100 Ns | m |
AERO
- Front Wing: 8 (of 10 clicks), Rear Wing: 9 (of 10 clicks), Ride height locked low front/rear for max ground effect — accept slight plank contact risk over Attack Point kerb for qualifying lap only
KEY SETUP NOTE
- Okayama's long Attack Point righthander (Turn 1) and the fast Esses reward high rear wing for rotation confidence, but the front straight into Turn 1 and the back straight demand you don't over-wing — run rear slightly higher than a pure balanced setup to maximize one-lap rotation through Turns 3-6, accepting a straight-line speed trade you can absorb since tyre wear/drag heat is irrelevant for a single lap.
TRACK GUIDE
- Turn 1 (Attack Point): Late brake deep on entry, trail brake to rotate the car early — this corner is taken almost flat in quali trim with the high wing setup, commit fully.
- Esses (Turns 3-6): Minimum steering input, let the aero platform do the work — smooth, precise inputs carry more speed than aggressive late apex here; a twitchy entry costs multiple corners of rhythm.
- Turn 9 (Hairpin): This is the biggest overtaking/lap time zone — brake as late as physically possible in a straight line, rotate hard on entry using trail brake and the diff coast setting, get back to power early for the run to the final corners.
- Final corner onto front straight: Traction is king — unwind steering early, prioritize a clean exit over apex speed since it feeds the longest flat-out section of the lap.
- Kerb usage: Okayama's kerbs at Turn 1 exit and the Esses can be used aggressively with this stiff setup for rotation, but avoid unsettling the rear on exit kerbs — a slide here costs
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