Toyota GR86

TYRES

• Slick (dry compound), Front: 30.5 PSI, Rear: 30.0 PSI
• Optimal operating temperature window: 80–95°C for peak grip; qualifying lap target is to cross the line with tyres entering this window, front-left and rear-right loaded highest due to Oran Park's dominant right-hand/left-hand corner mix.

ELECTRONICS

• TC: 0 (off, single lap max attack)
• ABS: 1 (minimum intervention, if adjustable) — default fixed if non-adjustable in GR86
• Engine Braking / Brake Magic: N/A (GR86 — no adjustable engine braking map; rely on throttle technique)
• Brake Bias: 58% front

SUSPENSION

• // FRONT
• Ride Height: 105 mm
• Wheel Rate FL / FR: 26000 N/m / 26000 N/m
• ARB: 14000 N/m
• Brake Torque Multiplier: 100%
• Brake Bias: 58%
• // REAR
• Ride Height: 110 mm
• Wheel Rate RL / RR: 22000 N/m / 22000 N/m
• ARB: 9000 N/m
• Diff Preload: 40 Nm
• Diff Coast: 0.6
• Diff Power: 0.5

DAMPERS

AERO

• GR86 has no adjustable wing elements in stock iRacing spec — fixed OEM aero, no brake duct adjustment available. Focus is purely mechanical grip optimization.

KEY SETUP NOTE

• Oran Park GP's tight, low-speed nature (Turns 2-4 hairpin complex and final corner) rewards a stiffer front ARB with slightly softer rear to induce aggressive rotation on turn-in — sacrifice a touch of high-speed stability through Turn 1 for massive time gained in the slow technical middle sector where most of the lap is spent.

TRACK GUIDE

• Turn 1 (fast right kink): carry maximum speed, late apex brushing the kerb — this sets up the run into the braking zone for Turn 2.
• Turn 2-3 hairpin complex: this is the lap's defining zone — brake late and hard in a straight line, trail brake deep to rotate the car, get on power early even if it means slight understeer on exit to maximize drive down the back straight.
• Turn 4-6 esses: minimum steering input, use curbs aggressively on the inside to straighten your line — momentum carry is everything here, lift-and-coast kills lap time.
• Final corner onto front straight: this is the most important exit of the lap — sacrifice entry speed for a clean, early throttle application since it leads onto the longest straight.
• Overall: Oran Park GP rewards mechanical grip and rotation over outright aero/stability; brake pressure modulation on entry to the hairpin complex is where qualifying laps are won or lost.

THEORETICAL BEST LAP