Tatuus FA1

TYRES

• Slick (sole compound), front 21.5 PSI cold / target ~26 PSI hot, rear 21.0 PSI cold / target ~25.5 PSI hot. No tyre blankets assumed — treat first lap as warm-up. Optimal operating window: 80–95°C, peak grip ~85–90°C.

ELECTRONICS

• No TC. No ABS. Engine braking: not adjustable (fixed map). Brake bias: 54.0% front (adjustable in cockpit, see below).

SUSPENSION

• // FRONT
• Ride Height: 30 mm
• Wheel Rate FL / FR: 62000 / 62000 N/m
• ARB: 110000 N/m
• Brake Torque Multiplier: 100%
• Brake Bias: 54.0%
• // REAR
• Ride Height: 35 mm
• Wheel Rate RL / RR: 58000 / 58000 N/m
• ARB: 80000 N/m
• Diff Preload: 35 Nm
• Diff Coast: 0.4
• Diff Power: 0.6

DAMPERS

AERO

• Front wing: 3 (of typical 0–4 range). Rear wing: 4. Downforce bias set slightly rearward for Campsa stability — this combination trades a little T1/T13 braking stability for the confidence needed through T10 and T16 flat-out.

KEY SETUP NOTE

• Campsa (T10) is taken at or near full throttle with slick-shod low-downforce cars — the rear wing setting above (4) is the minimum needed to keep the rear planted there without killing straight-line speed on the pit/main straights; running less will show up as a rear-end wobble exactly at Campsa's apex under aggressive late-throttle application, so don't be tempted to trim wing further even though T16 exit would love it.

TRACK GUIDE

• T1 Elf: brake late but in a straight line — the car has no ABS, so trail brake only gently; early rotation here sets up the Renault complex, don't sacrifice entry speed for an over-rotated exit.
• T3 Renault: this is where lap time is made or lost — commit flat or near-flat, trust the rear wing setting, and use smooth steering inputs; snapping the wheel here with aggressive lock unsettles the rear on inconsistent-temperature tyres.
• T7-T9 Wurth chicane: sacrifice a little mid-corner speed for a clean, straight exit — traction out of T9 feeds a long run to Campsa, so prioritize throttle application over outright rotation.
• T10 Campsa: stay committed, resist lifting; the banking helps but aggressive drivers who lift here lose more than they gain — trust the rear aero.
• T13/14 hairpin complex: this is your best overtaking and lap-time zone — late braking rewarded, get the car rotated early with trail-braking and prioritize traction on exit onto the back straight for T16 and the pit straight.