Grand Prix 2009 RB5

TYRES

• Compound: Slick Soft (S)
• Front Pressure: 24.5 PSI (FL/FR)
• Rear Pressure: 25.5 PSI (RL/RR)
• Camber: Front -3.0° / Rear -1.5°
• Toe: Front +0.05° toe-out / Rear +0.15° toe-in
• No tyre blankets in AC Evo

ELECTRONICS

• TC: 3 (reference lap used 4; 3 gives more exit drive for a single push lap)
• ABS: N/A (not fitted on the 2009 car)
• Engine Braking / Brake Magic: N/A
• Brake Bias: 54.0% front (see SUSPENSION)
• Notes: KERS is not modelled in the 2009 RB5, so there is no ERS map

SUSPENSION

• // FRONT
• Ride Height: 32 mm
• Wheel Rate FL / FR: 120,000 N/m / 120,000 N/m
• ARB: 40,000 N/m
• Brake Torque Multiplier: 100%
• Brake Bias: 54.0%
• // REAR
• Ride Height: 55 mm
• Wheel Rate RL / RR: 100,000 N/m / 100,000 N/m
• ARB: 30,000 N/m
• Diff Preload: 40 Nm
• Diff Coast: 0.4
• Diff Power: 0.3

DAMPERS

AERO

• Front Wing: 3 clicks (low drag, still enough front bite for the chicanes)
• Rear Wing: 2 clicks (minimum workable drag for the straights)
• Downforce Level: Low / Monza spec
• Brake Ducts: Front 2 / Rear 2 (minimal drag, single lap so brake temp is not critical)

KEY SETUP NOTE

• The RB5 is a low-downforce, low-drag car at Monza, so the lap is won by top speed plus front-end rotation at the Rettifilo, Roggia and Ascari chicanes. Brake bias moves forward from 52% to 54% for late, stable entries on a light single-lap fuel load. TC drops from 4 to 3 to maximise exit speed out of the Parabolica and Lesmos. Pressures sit 1 PSI under the reference hot values because the single-lap build-up is faster and the lap was green and cooler.

TRACK GUIDE

• Rettifilo (T1/2): Brake from the 340+ km/h straight at the 100 m board, trail-brake to the apex, and ride the inside kerb. Get the car straight early for the T2 exit onto the short run to Curva Grande.
• Curva Grande to Roggia (T3/4/5): Take Curva Grande flat with a smooth, early throttle commitment, then brake hard and late for the Roggia chicane. Rotate the car with brake release and use the exit kerb for a clean launch.
• Lesmos (T8/9): Carry maximum speed into Lesmo 1 and trail-brake to rotate. Tighten the line for Lesmo 2 and be patient with the throttle, since exit speed here feeds the Serraglio straight.
• Ascari (T11/12/13): Attack the left-right-left with a straight-line approach, using the kerbs aggressively without upsetting the platform. Be on full throttle early, because the run to Parabolica is long.
• Parabolica / Alboreto (T14): This is the lap-time corner. Brake late, trail in, and open the line to a wide exit. Squeeze the throttle progressively to avoid TC intervention and carry maximum speed onto the main straight.