Ginetta G55 GT4

TYRES

• Compound: GT4 Slick — Medium
• Front: 2.05 bar / Rear: 1.95 bar
• Tyre blanket temp: 80°C (if heaters permitted; otherwise cold-pressure target as above accounting for out-lap build-up)

ELECTRONICS

• TC: 3 (moderate slip allowance for aggressive corner exit)
• ABS: 2
• Engine Braking: Medium (4/6)
• Brake Pressure: 96%
• Brake Bias: F: 58% / R: 42%

DRIVETRAIN

• Fuel Map: Map 2 — balanced power/fuel consumption, allows aggressive stints without excessive deg on engine/fuel number for full race distance
• Gear Ratios:
• 1st: 3.083
• 2nd: 2.235
• 3rd: 1.720
• 4th: 1.390
• 5th: 1.160
• 6th: 0.970
• Final Drive: 3.846

SUSPENSION

• // FRONT
• Ride Height: 55 mm
• Wheel Rate FL / FR: 32000 N/m / 32000 N/m
• ARB: 22 N/mm
• Brake Torque Multiplier: 96%
• Brake Bias: 58%
• // REAR
• Ride Height: 58 mm
• Wheel Rate RL / RR: 28000 N/m / 28000 N/m
• ARB: 16 N/mm
• Diff Preload: 40 Nm
• Diff Coast: 0.5
• Diff Power: 0.6

DAMPERS

AERO

• Front Splitter: Level 3 (fixed-position, max allowed)
• Rear Wing: 4 (of 6 — balanced for Döttinger Höhe top speed vs GP-loop downforce)
• Downforce Level: Medium-High
• Brake Ducts: F: 2 / R: 3 (GP circuit has moderate braking load, long back straight for cooling recovery)

KEY SETUP NOTE

• The Nordschleife GP layout mixes the long Döttinger-style back straight (via the arena section) with tight, technical infield corners — run slightly softer rear ARB and additional rear ride height to maximize mechanical grip for rotation into Turn 1 (Yokohama-S) and the hairpin, while keeping enough rear wing to stabilize the car under braking from high speed into Turn 1 and the Mercedes Arena chicane.

TRACK GUIDE

• Turn 1 (end of pit straight): Heavy braking zone — brake late but straight-line, trail slightly to rotate the G55 into the tight right-hander; overtaking spot.
• Mercedes Arena (T4-T5 chicane): Second-gear chicane — sacrifice ultimate entry speed for a clean, early exit since it leads onto a flat-out section; aggressive kerb use on exit curb is fine, car handles curbs well.
• Dunlop-Hatch / Sector 2 esses: Momentum corners — minimize steering input, use the GT4's balanced chassis to carry speed through direction changes; avoid overdriving entry.
• Schumacher-S / final corners before pit straight: Traction is king — get on throttle early even if it costs peak rotation, since the long