A1GP Car Manual Issue 1 3

7/27/2019 A1GP Car Manual Issue 1 3

http://slidepdf.com/reader/full/a1gp-car-manual-issue-1-3 1/99





Page 3 of 99

2.3.3. TOE...............................................................................................................................................................68

2.3.4. SPRINGS & DAMPERS................................................................................................................................ 69

2.3.5. 3rd SPRING...................................................................................................................................................75

2.3.6. ANTIROLL BAR STIFFNESS ..........................................................................................................................76

2.4. RIDE HEIGHT CHECK AND REFERENCES ........................................................................................... 78

2.4.1. GENERAL CAR DIMENSIONS....................................................................................................................79

2.4.2. REAR QUICK LIFT JACK AND STARTER ARCHITECTURE REFERENCES.................................................80

3. AERODYNAMICS................................................................................................................................82

3.1. FRONT WING ASSEMBLY...................................................................................................................... 82

3.1.1. FRONT WING MAIN PLANE ......................................................................................................................82

3.1.2. FRONT WING FLAP .................................................................................................................................... 83

3.1.3. FRONT WING END PLATE .......................................................................................................................... 84

3.2. MAIN BODY & UNDERWING............................................................................................................... 85

3.3. BARGE BOARDS.................................................................................................................................... 86

3.4. SIDEPODS............................................................................................................................................... 87

3.5. REAR WING ASSEMBLY ........................................................................................................................ 87 3.5.1. REAR WING.................................................................................................................................................88

3.5.2. REAR WING MAIN-PLANE AND FLAP IN POSITION 5 (HIGH DOWNFORCE) ....................................88

3.5.3. REAR WING MAIN-PLANE ADJUSTMENT RANGE..................................................................................89

3.6. AERODYNAMIC DATA......................................................................................................................... 90

3.7. POLAR DIAGRAM OF THE CAR.......................................................................................................... 91

3.8. AERO MAPS........................................................................................................................................... 92

3.8.1. LOW DOWNFORCE AERO MAP..............................................................................................................92

3.8.2. HIGH DOWNFORCE AERO MAP ............................................................................................................. 93

3.9. COOLING INLET BLANKING ................................................................................................................ 94 3.10. BRAKE DUCTS SELECTION ................................................................................................................... 94

3.11. POLAR DIAGRAM OF THE MAIN ADJUSTABLE DEVICES ................................................................ 95

3.11.1. FRONT FLAP ................................................................................................................................................ 95

3.11.2. REAR BI-PLANE ........................................................................................................................................... 96

4. CHASSIS ADJUSTMENTS .....................................................................................................................97

4.1. STEERING ASSEMBLY: ........................................................................................................................... 97

4.2. NOSE BOX MOUNT............................................................................................................................... 97

4.3. EXTRACTABLE SEAT............................................................................................................................... 97

4.3.1. CARBON SHELL AND LEG STRAP POSITION...........................................................................................97 4.3.2. CARBON SHELL .......................................................................................................................................... 98

4.3.3. QUICK RELEASE BLACK SOCKET POSITION............................................................................................99

4.3.4. SIDE BELTS....................................................................................................................................................99

4.3.5. DRIVER SEAT DIMENSION .........................................................................................................................99



Page 4 of 99

1. GENERAL INFORMATION

A1GP POWERED BY FERRARI CHASSIS MANUAL

1.1. GENERAL DISCLAIMER

Motor sport is HIGHLY DANGEROUS and consequently this manual sets out guidance to assist with

the safe and correct operation, use and maintenance requirements of the chassis of the A1GP

car . The nature of motor sport places the chassis under significant stress and pressure which can

create abnormal and extreme operating conditions, also accidents can happen. This manual isprovided as a guide only, without representation or warranty and is provided to users on the basis

that each user accepts all risks associated with driving a motor sport vehicle and taking part in a

motor sport event and to the fullest extent permitted by law, shall be solely responsible for all loss

or damage occurring to his or her person or property.

A1GP suggests that, under normal operating conditions, the structural components of the chassis

when new, would not show material failure before the A1GP car has completed in excess of 8000

Km. This mileage guide is provided subject to all necessary maintenance and regular safety

checks being undertaken as appropriate and provided the car is not involved in accidents. A1GP

is not responsible for incorrect chassis repairs, or for chassis repairs made outside of A1GP’s

designated factory, or by suppliers other than those appointed and recommended by A1GP or in

centres not authorized by A1GP. The chassis should be tested and inspected for structural failure

not less than 12 months after delivery from the A1GP factory and then each subsequent 12

months and/or upon completing more than 8000 Km and after any major accident. The chassis

should also be checked if A1GP or A1GP’s appointed suppliers advice as such. All testing and

material maintenance requirements of the chassis should be completed by A1GP or A1GP’s

appointed suppliers.

1.2. CONTROLLED PARTS

Teams are not allowed to use, test or run chassis parts not supplied by A1GP except for the parts related to

driver comfort in the cockpit.

Main controlled parts are the following ones:

• Springs (front: between 1000 and 1800 lb/in, rear: between 800 and 1500 lb/in with displacement spacers).

• PENSKE racing shocks, dampers VDP-45 (no packers, bump stops allowed)

• Differential ramps: 45°/65°; 30°/60°; only allowed

• Front and rear anti roll bar: Ø 6.5mm, Ø 9.0mm, Ø13.5mm and roll free bar; only allowed

• Roll free RHC 3rd spring system: rubber donuts and nylon spacer supplied by A1GP: only allowed• AP Carbon / Carbon Clutch (140mm diameter) part number CP7143-CE02-SC

• Brembo Carbon discs and carbon brake pads

• Brembo Brake master cylinders: Ø16mm, Ø17.4mm, Ø19mm, Ø20.6mm, Ø22.2mm

• Seat harness

• Steering Pinion gears : 6 teeth 37mm/rev, 7teeth 43.2mm/rev



Page 5 of 99

1.3. CHASSIS

Wheelbase: 3100 mm

Front Track: 1690.4 mm @ 3deg camber

Rear Track: 1632.0 mm @ 1.5deg camber

Weight: Approx 715kg including driver, race ready (excluding fuel) Weight: Approx 640kg painted, oil and water, no driver

Front and rear suspension: Double wishbone with pushrod operated coil over damper units.Adjustable ride height, cambers and toe, Non adjustable Geometry

Anti-roll bar: Multi adjustable, quick change front and rear roll bars Chassis: Carbon fibre skins, aluminium honeycomb core. Tested to meet allapplicable FIA crash safety standards

Bodywork: Light weight composite bodywork Gearbox: Xtrac A1GP Six-speed longitudinal sequential. Gear selection via a

Magneti Marelli paddle shift system Drive line: Pankl Tripod jointed driveshafts Brakes: Brembo carbon discs, six-pot aluminium calipers Dampers: Penske VDP-45, two-way adjustable Wheels: OZ Front 13” dia. X 12” Rear 13” dia. X 14” Steering: Titan angle drive bevel and two-pinion ratio’s Steering wheel: 280mm diameter carbon, with mounted LCD dash Instrumentation and display: Magneti Marelli mounted display unit

Multi-channel logging facility for engineering analyseSeat belt: FIA approved SABELT six-point safety harness Fuel cell: ATL fuel cell approximately 140-litres capacity and designed to take up

to 50 per cent ethanol Clutch: AP three-plate carbon/carbon with steel hub Tyres: Michelin control slick and treaded wet tyres

1.4. ENGINE

Configuration: 90 degree V8

Displacement: 4500cc Width: 666.5 mm (max L&R cam covers width)

Height: 446(from bottom plane to max cam covers height) Length: 569 mm (from front pulley bolt to rear plane engine block flange) Weight: 165kg Cylinder block: Die cast aluminium alloy

Cylinder head: Sand cast aluminium alloy

Valve train: Four overhead camshafts

Four valves per cylinder

Engine management: Bosch MED 9.6 Injection: Gasoline direct injection Spark plugs: NGK Fuel: Shell E10 102 RON

Max torque: 406 lbs ft 550 Nm @6250rpm Max power: 600 bhp 448 Kw @9000rpm

Max RPM 8200Max RPM Push to Pass 8700



Page 6 of 99

1.5. FLUIDS LEVELS AND CHARACTERISTICS

The Fluids levels and References are as follows:

Description CapacityMinimum

LevelManufacturer Notes

Engine Oil 4.5 litre 3.5 litre Shell Helix 10w-60 Capacity in oil tank

Gearbox Oil 2.0 litre Shell Helix 75w-90 Capacity from dry

Fuel 140 litre Shell LM 24

Cooling Fluid 10.2 litreShell Q Quench 4% in deionised

water

Brake Fluid Brembo LCF 600 Plus Recommended

Hydraulic Fluid Shell Donax TX

Clutch Fluid As hydraulic system

1.6. FRONT SUSPENSION

1.6.1. LOWER WISHBONE

Front Lower Wishbone Nominal Lengths are in mm:



Page 7 of 99

1.6.2. CASTOR

When the car is flat (front and rear ride height are identical ) and the front upright inclination is 0.00°

[APPARENT CASTOR ] the effective castor angle is 6.06° [BUILT-IN CASTOR ].

With different front to rear ride heights, castor angle changes because of the pitch angle of the car.

For instance, with 25 mm front and 55mm rear ride heights, measured at wheel axis, (wheelbase is 3100 mm)the pitch angle is 0.55° and castor angles (both apparent and total) are reduced.

Pitch angle : [(55-25)/3100] • 57.296 = 0.55°

Total Castor angle : 6.06° - 0.55° = 5.51°

Apparent Castor angle : 0.00° - 0.55° = -0.55°

There is no Castor Adjustment.



Page 8 of 99

1.6.3. FRONT ROCKER ASSEMBLY

The Front Rocker Assembly is:



Page 9 of 99

1.7. REAR SUSPENSION

1.7.1. DRIVESHAFT

The driveshaft assembly is as following:

The detailed section of the Upright Tripod:

Note: Front and rear uprights bearing assembly re-builds (servicing) will be undertaken by Pankl only.



Page 10 of 99

1.7.2. REAR ROCKER ASSEMBLY

The Rear Rocker Assembly is:



Page 11 of 99

1.8. FRONT SUSPENSION GEOMETRY RESULTS

Reference points: Z “0” Bottom of chassis (top of wooden skid)

Notations:

• Wheel Def. : Wheel movement

• Ride Height: The distance from the bottom of the chassis Z “0” line to the ground plane.

• R.C. Height: The distance from the roll centre to the ground plane.

• R.C. to 0-L : The distance from the bottom of the chassis Z “0” line to the roll centre, a

negative number denotes that the roll centre is above the chassis Z “0” line.

• R.C. Parity: The percentage of roll centre change in heave relative to the chassis, 100%

would mean the roll centre move the same distance as the chassis moves in heave, more

than 100% i.e. 120% means the roll centre movement is more then the chassis moves in

heave, and less than 100% i.e. 80% means the roll centre movement is less than the chassis

moves in heave.

• Cam. Angle: The camber angle of the wheel.

• Cam. Change: The camber angle change of the wheel.

• VSAL Lateral: The virtual swing axle length, lateral.

• VSAL Long: The virtual swing axle length, longitudinal.

• Scrub: The change in lateral wheel movement in heave from the centre line of the car.

• Unit Wheel rate: The Unit wheel rate is defined as the wheel rate for a spring rate of 1.

Mathematically it is defined as 1/VR2

.

• Rising Rate: The rising rate is defined firstly as the increase in wheel rate in heave expressed

as a percentage.

• Inst Rising Rate: The instant rising rate is defined as the rate of increase or gradient of the

rising rate curve.



Page 12 of 99

FRONT SPRING CHARTS

Wheel

Def.

Spring

Def.

Force

Ratio

Vel.

Ratio V.R.^2

n t

Wheel

Rate

Rising

Rate

nst

Rising

Rate

mm mm ratio ratio ratio ratio % %

-25.00 -25.31 1.03 0.97 0.94 1.06 6.13 -0.44

-20.00 -20.18 1.02 0.98 0.96 1.04 4.16 -0.35

-15.00 -15.09 1.01 0.99 0.97 1.03 2.61 -0.27

-10.00 -10.04 1.01 0.99 0.98 1.02 1.43 -0.20

-5.00 -5.01 1.00 1.00 0.99 1.01 0.58 -0.14

0.00 0.00 1.00 1.00 1.00 1.00 0.00 -0.09

5.00 5.00 1.00 1.00 1.00 1.00 -0.35 -0.05

10.00 9.99 1.00 1.00 1.00 1.00 -0.51 -0.02

15.00 14.98 1.00 1.00 1.00 1.00 -0.53 0.0120.00 19.98 1.00 1.00 1.00 1.00 -0.44 0.02

25.00 24.97 1.00 1.00 1.00 1.00 -0.30 0.03

30.00 29.97 1.00 1.00 1.00 1.00 -0.13 0.03

35.00 34.97 1.00 1.00 1.00 1.00 0.01 0.02

40.00 39.98 1.00 1.00 1.00 1.00 0.08 0.0045.00 44.99 1.00 1.00 1.00 1.00 0.04 -0.02

50.00 49.99 1.00 1.00 1.00 1.00 -0.16 -0.06

25.40 25.37 1.00 1.00 1.00 1.00 -0.28 0.03



Page 13 of 99

FRONT ARBs CHARTS

Heave

Def.

Def.

Def.

orce

Ratio 1

orce

Ratio 2

orce

Ratio 3

e .

Ratio1

e .

Ratio2

e .

Ratio3

mm mm mm mm ratio ratio ratio ratio ratio ratio-25.00 -24.95 -25.21 -25.47 1.00 1.02 1.04 1.00 0.98 0.97

-20.00 -19.93 -20.12 -20.31 1.00 1.01 1.03 1.00 0.99 0.97

-15.00 -14.93 -15.06 -15.19 1.00 1.01 1.02 1.00 0.99 0.98-10.00 -9.94 -10.02 -10.10 1.00 1.01 1.02 1.00 0.99 0.99

-5.00 -4.97 -5.00 -5.04 0.99 1.00 1.01 1.01 1.00 0.99

0.00 0.00 0.00 0.00 0.99 1.00 1.01 1.01 1.00 0.995.00 4.96 4.99 5.02 0.99 1.00 1.00 1.01 1.00 1.00

10.00 9.92 9.97 10.02 0.99 1.00 1.00 1.01 1.00 1.0015.00 14.89 14.95 15.01 0.99 1.00 1.00 1.01 1.00 1.00

20.00 19.86 19.93 20.00 1.00 1.00 1.00 1.00 1.00 1.00

25.00 24.84 24.91 24.98 1.00 1.00 1.00 1.00 1.00 1.0030.00 29.84 29.91 29.98 1.00 1.00 1.00 1.00 1.00 1.00

35.00 34.87 34.93 34.98 1.01 1.01 1.00 0.99 0.99 1.0040.00 39.93 39.97 40.01 1.02 1.01 1.01 0.99 0.99 0.99

45.00 45.02 45.04 45.05 1.02 1.02 1.01 0.98 0.98 0.99

50.00 50.17 50.15 50.14 1.03 1.03 1.02 0.97 0.97 0.9825.40 25.24 25.31 25.38 1.00 1.00 1.00 1.00 1.00 1.00

Heave V.R1.^2 V.R2.^2 V.R3.^2

Wheel

Rate 1

Wheel

Rate 2

Wheel

Rate 3

Rising

Rate 1

Rising

Rate 2

Rising

Rate 3

mm ratio ratio ratio ratio ratio ratio % % %-25.00 0.99 0.96 0.93 1.01 1.04 1.07 2.42 4.32 6.20

-20.00 1.00 0.97 0.95 1.00 1.03 1.06 1.77 3.21 4.63

-15.00 1.00 0.98 0.96 1.00 1.02 1.04 1.19 2.21 3.22-10.00 1.01 0.99 0.97 0.99 1.01 1.03 0.68 1.33 1.97

-5.00 1.01 1.00 0.98 0.99 1.00 1.02 0.28 0.59 0.89

0.00 1.01 1.00 0.99 0.99 1.00 1.01 0.00 0.00 0.005.00 1.02 1.01 1.00 0.98 0.99 1.00 -0.14 -0.42 -0.71

10.00 1.02 1.01 1.00 0.98 0.99 1.00 -0.12 -0.67 -1.2115.00 1.01 1.01 1.00 0.99 0.99 1.00 0.08 -0.73 -1.52

20.00 1.01 1.01 1.01 0.99 0.99 0.99 0.48 -0.57 -1.61

25.00 1.00 1.00 1.00 1.00 1.00 1.00 1.11 -0.19 -1.4730.00 0.99 1.00 1.00 1.01 1.00 1.00 1.98 0.42 -1.10

35.00 0.98 0.99 0.99 1.02 1.01 1.01 3.11 1.29 -0.49

40.00 0.97 0.98 0.99 1.03 1.02 1.01 4.55 2.44 0.3845.00 0.95 0.96 0.97 1.05 1.04 1.03 6.30 3.88 1.52

50.00 0.94 0.95 0.96 1.07 1.05 1.04 8.40 5.64 2.95

25.40 1.00 1.00 1.00 1.00 1.00 1.00 1.17 -0.15 -1.45



Page 14 of 99

FRONT 3RD SPRING CHARTS

Heave

ARB1

Def.

ARB2

Def.

ARB3

Def.

Force

Ratio 1

Force

Ratio 2

Force

Ratio 3

Vel.

Ratio1

Vel.

Ratio2

Vel.

Ratio3

mm mm mm mm ratio ratio ratio ratio ratio ratio

-25.00 -24.43 -24.68 -24.93 0.97 0.98 1.00 1.03 1.02 1.00-20.00 -19.58 -19.76 -19.95 0.97 0.98 1.00 1.03 1.02 1.00

-15.00 -14.71 -14.84 -14.96 0.98 0.99 1.00 1.02 1.01 1.00

-10.00 -9.82 -9.90 -9.98 0.98 0.99 1.00 1.02 1.01 1.00-5.00 -4.92 -4.95 -4.99 0.98 0.99 1.00 1.02 1.01 1.00

0.00 0.00 0.00 0.00 0.99 0.99 1.00 1.01 1.01 1.005.00 4.93 4.96 4.99 0.99 0.99 1.00 1.01 1.01 1.00

10.00 9.88 9.93 9.98 0.99 0.99 1.00 1.01 1.01 1.00

15.00 14.84 14.90 14.96 0.99 1.00 1.00 1.01 1.00 1.0020.00 19.81 19.88 19.95 1.00 1.00 1.00 1.00 1.00 1.00

25.00 24.79 24.86 24.93 1.00 1.00 1.00 1.00 1.00 1.0030.00 29.79 29.85 29.92 1.00 1.00 1.00 1.00 1.00 1.00

35.00 34.79 34.85 34.90 1.00 1.00 1.00 1.00 1.00 1.00

40.00 39.80 39.84 39.88 1.00 1.00 1.00 1.00 1.00 1.0045.00 44.83 44.84 44.86 1.01 1.00 1.00 0.99 1.00 1.00

50.00 49.87 49.85 49.84 1.01 1.00 1.00 0.99 1.00 1.00

25.40 25.19 25.26 25.33 1.00 1.00 1.00 1.00 1.00 1.00

Heave V.R1.^2 V.R2.^2 V.R3.^2WheelRate 1

WheelRate 2

WheelRate 3

RisingRate 1

RisingRate 2

RisingRate 3

mm ratio ratio ratio ratio ratio ratio % % %

-25.00 1.07 1.04 1.01 0.94 0.96 0.99 -3.53 -1.84 -0.15-20.00 1.06 1.03 1.01 0.94 0.97 0.99 -2.71 -1.39 -0.09

-15.00 1.05 1.03 1.01 0.95 0.97 0.99 -1.94 -0.99 -0.05

-10.00 1.04 1.02 1.01 0.96 0.98 1.00 -1.24 -0.63 -0.02-5.00 1.04 1.02 1.00 0.97 0.98 1.00 -0.60 -0.30 0.00

0.00 1.03 1.02 1.00 0.97 0.98 1.00 0.00 0.00 0.00

5.00 1.02 1.01 1.00 0.98 0.99 1.00 0.56 0.27 -0.0110.00 1.02 1.01 1.01 0.98 0.99 0.99 1.07 0.52 -0.03

15.00 1.01 1.01 1.01 0.99 0.99 0.99 1.57 0.75 -0.0520.00 1.01 1.01 1.01 0.99 0.99 0.99 2.03 0.96 -0.09

25.00 1.00 1.01 1.01 1.00 0.99 0.99 2.49 1.16 -0.14

30.00 1.00 1.00 1.01 1.00 1.00 0.99 2.93 1.35 -0.1935.00 1.00 1.00 1.01 1.00 1.00 0.99 3.37 1.54 -0.26

40.00 0.99 1.00 1.01 1.01 1.00 0.99 3.82 1.72 -0.33

45.00 0.99 1.00 1.01 1.01 1.00 0.99 4.28 1.91 -0.41

50.00 0.98 1.00 1.01 1.02 1.00 0.99 4.76 2.10 -0.4925.40 1.00 1.01 1.01 1.00 0.99 0.99 2.52 1.18 -0.14



Page 15 of 99

STEERING CHARTS (6t pinion)

Related to Steering Wheel Angle

Steer

Angle

Wheel

Ang

Camber

Ang

Camber

Gain

Heave

Gain

Heave

CL Roll Gain

deg deg deg deg mm mm deg

180 12.43 -4.25 -1.24 -1.43 0.166 0.109

160 11.03 -4.10 -1.10 -1.29 0.131 0.096

140 9.64 -3.96 -0.96 -1.14 0.100 0.084

120 8.26 -3.82 -0.82 -0.99 0.073 0.072

100 6.87 -3.68 -0.68 -0.84 0.051 0.060

80 5.50 -3.54 -0.54 -0.68 0.033 0.048

60 4.12 -3.40 -0.40 -0.51 0.018 0.036

40 2.75 -3.27 -0.27 -0.35 0.008 0.024

20 1.37 -3.13 -0.13 -0.18 0.002 0.012

0 0.00 -3.00 0.00 0.00 0.000 0.000

-20 -1.37 -2.87 0.13 0.18 0.002 -0.012

-40 -2.75 -2.74 0.26 0.36 0.008 -0.024

-60 -4.12 -2.61 0.39 0.55 0.018 -0.036

-80 -5.50 -2.49 0.51 0.74 0.033 -0.048

-100 -6.89 -2.36 0.64 0.94 0.051 -0.060

-120 -8.27 -2.24 0.76 1.14 0.073 -0.072

-140 -9.66 -2.12 0.88 1.34 0.100 -0.084-160 -11.06 -2.00 1.00 1.55 0.131 -0.096

-180 -12.46 -1.88 1.12 1.76 0.166 -0.109

Related to Steering Rack DisplacementSteer

Rack

Wheel

Ang

Camber

Ang

Camber

Gain

Heave

Gain

Heave

CL Roll Gain

mm deg deg deg mm mm deg

20 13.52 -4.36 -1.36 -1.54 0.196 0.118

18 12.15 -4.22 -1.21 -1.40 0.159 0.106

16 10.78 -4.08 -1.07 -1.26 0.125 0.094

14 9.42 -3.94 -0.93 -1.12 0.096 0.082

12 8.07 -3.80 -0.80 -0.97 0.070 0.071

10 6.72 -3.66 -0.66 -0.82 0.049 0.0598 5.37 -3.53 -0.53 -0.66 0.031 0.047

6 4.03 -3.39 -0.39 -0.50 0.017 0.035

4 2.68 -3.26 -0.26 -0.34 0.008 0.024

2 1.34 -3.13 -0.13 -0.17 0.002 0.012

0 0.00 -3.00 0.00 0.00 0.000 0.000

-2 -1.34 -2.87 0.13 0.18 0.002 -0.012

-4 -2.69 -2.75 0.25 0.35 0.008 -0.024

-6 -4.03 -2.62 0.38 0.54 0.017 -0.035

-8 -5.38 -2.50 0.50 0.73 0.031 -0.047

-10 -6.73 -2.38 0.62 0.92 0.049 -0.059

-12 -8.08 -2.26 0.75 1.11 0.070 -0.071

-14 -9.44 -2.14 0.86 1.31 0.096 -0.082

-16 -10.81 -2.02 0.98 1.51 0.125 -0.094-18 -12.18 -1.90 1.10 1.72 0.159 -0.106

-20 -13.56 -1.79 1.21 1.93 0.196 -0.118



Page 16 of 99

(7t pinion)

Related to Steering Wheel Angle

Steer

Angle

Wheel

Ang

Camber

Ang

Camber

Gain

Heave

Gain

Heave

CL Roll Gain

deg deg deg deg mm mm deg

180 14.62 -4.47 -1.47 -1.64 0.229 0.127

160 12.97 -4.30 -1.30 -1.49 0.181 0.113

140 11.33 -4.13 -1.13 -1.32 0.138 0.099

120 9.69 -3.96 -0.96 -1.15 0.101 0.085

100 8.07 -3.80 -0.80 -0.97 0.070 0.071

80 6.45 -3.64 -0.63 -0.79 0.045 0.057

60 4.83 -3.47 -0.47 -0.60 0.025 0.042

40 3.22 -3.31 -0.31 -0.41 0.011 0.028

20 1.61 -3.16 -0.16 -0.21 0.003 0.014

0 0.00 -3.00 0.00 0.00 0.000 0.000

-20 -1.61 -2.85 0.15 0.21 0.003 -0.014

-40 -3.22 -2.70 0.30 0.43 0.011 -0.028

-60 -4.84 -2.55 0.45 0.65 0.025 -0.042

-80 -6.46 -2.40 0.60 0.88 0.045 -0.057

-100 -8.08 -2.26 0.75 1.11 0.070 -0.071

-120 -9.72 -2.11 0.89 1.35 0.101 -0.085

-140 -11.36 -1.97 1.03 1.60 0.138 -0.099-160 -13.01 -1.84 1.17 1.85 0.181 -0.113

-180 -14.67 -1.70 1.30 2.10 0.229 -0.127

FRONT GEOMETRY CHARTS

Wheel

Def.

Ride

Height

R.C.

Height

R.C. to

O-L

R.C.

Parity

Cam.

Angle

Cam.

Change

VSAL

Lateral

VSAL

Long

Bump

Steer Scrub Anti-Dive

mm mm mm mm % deg deg mm mm deg mm %-25 60.01 46.03 13.98 85.01 -2.75 0.26 6355 14199 0.00 -1.05 21.84

-20 55.01 41.78 13.23 84.87 -2.79 0.21 6034 13691 0.00 -0.79 22.49

-15 50.01 37.54 12.47 84.72 -2.84 0.16 5743 13220 0.00 -0.55 23.16-10 45.01 33.31 11.70 84.57 -2.89 0.11 5478 12783 0.00 -0.34 23.84

-5 40.01 29.08 10.93 84.41 -2.95 0.06 5238 12377 0.00 -0.16 24.55

0 35.01 24.87 10.15 84.25 -3.00 0.00 5018 11999 0.00 0.00 25.29

5 30.01 20.66 9.35 84.09 -3.06 -0.06 4816 11647 0.00 0.13 26.04

10 25.01 16.46 8.55 83.92 -3.12 -0.12 4631 11317 -0.01 0.24 26.83

15 20.01 12.27 7.75 83.75 -3.18 -0.18 4459 11008 -0.01 0.33 27.6420 15.01 8.08 6.93 83.58 -3.25 -0.25 4299 10717 -0.01 0.39 28.48

25 10.01 3.91 6.10 83.40 -3.31 -0.31 4151 10443 -0.02 0.42 29.3530 5.01 -0.26 5.27 83.22 -3.38 -0.38 4011 10184 -0.02 0.43 30.25

35 0.01 -4.41 4.43 83.03 -3.46 -0.45 3881 9939 -0.03 0.42 31.18

40 -4.99 -8.56 3.57 82.84 -3.53 -0.53 3758 9707 -0.03 0.38 32.1545 -9.99 -12.70 2.71 82.65 -3.61 -0.61 3642 9487 -0.04 0.32 33.16

50 -14.99 -16.82 1.84 82.45 -3.69 -0.68 3535 9278 -0.05 0.23 34.21

+ in, - out



Page 17 of 99

1.9. REAR SUSPENSION GEOMETRY RESULTS

Reference points: Z “0” Bottom of chassis (top of wooden skid)

There is only one rear suspension geometry, designed around the Michelin tyres.

REAR SPRING CHARTS

Wheel

Def.

Spring

Def.

Force

Ratio

Vel.

Ratio V.R.^2

n t

Wheel

Rate

Rising

Rate

nst

Rising

Rate

mm mm ratio ratio ratio ratio % %

-25.00 -23.49 0.93 1.07 1.15 0.87 -2.63 0.05

-20.00 -18.81 0.94 1.07 1.14 0.88 -2.25 0.08

-15.00 -14.13 0.94 1.07 1.14 0.88 -1.77 0.09

-10.00 -9.43 0.94 1.06 1.13 0.88 -1.21 0.11

-5.00 -4.72 0.94 1.06 1.12 0.89 -0.61 0.11

0.00 0.00 0.95 1.06 1.12 0.90 0.00 0.11

5.00 4.74 0.95 1.05 1.11 0.90 0.57 0.10

10.00 9.49 0.95 1.05 1.10 0.91 1.08 0.0815.00 14.25 0.95 1.05 1.10 0.91 1.47 0.06

20.00 19.02 0.95 1.05 1.10 0.91 1.73 0.03

25.00 23.80 0.95 1.05 1.10 0.91 1.80 -0.0130.00 28.57 0.95 1.05 1.10 0.91 1.65 -0.05

35.00 33.33 0.95 1.05 1.10 0.91 1.25 -0.10

40.00 38.09 0.95 1.05 1.11 0.90 0.55 -0.15

45.00 42.82 0.94 1.06 1.12 0.89 -0.46 -0.21

50.00 47.53 0.94 1.07 1.14 0.88 -1.83 -0.28

25.40 24.18 0.95 1.05 1.10 0.91 1.79 -0.01



Page 18 of 99

REAR ARBs CHARTS

Heave

ARB1

Def.

ARB2

Def.

ARB3

Def.

Force

Ratio 1

Force

Ratio 2

Force

Ratio 3

Vel.

Ratio1

Vel.

Ratio2

Vel.

Ratio3


-20.00 -18.83 -19.44 -20.05 0.90 0.94 0.98 1.12 1.07 1.02-15.00 -14.28 -14.70 -15.13 0.92 0.96 0.99 1.09 1.05 1.01-10.00 -9.62 -9.88 -10.14 0.94 0.97 1.00 1.06 1.03 1.00

-5.00 -4.85 -4.97 -5.09 0.96 0.99 1.01 1.04 1.01 0.99

0.00 0.00 0.00 0.00 0.98 1.00 1.02 1.02 1.00 0.985.00 4.94 5.03 5.13 1.00 1.01 1.03 1.00 0.99 0.97

10.00 9.95 10.13 10.31 1.01 1.02 1.04 0.99 0.98 0.9615.00 15.04 15.28 15.52 1.03 1.04 1.05 0.97 0.97 0.96

20.00 20.21 20.49 20.77 1.04 1.05 1.05 0.96 0.95 0.95

25.00 25.46 25.77 26.07 1.06 1.06 1.06 0.94 0.94 0.9430.00 30.81 31.12 31.42 1.08 1.08 1.08 0.93 0.93 0.93

35.00 36.27 36.55 36.83 1.10 1.10 1.09 0.91 0.91 0.9240.00 41.85 42.09 42.32 1.13 1.12 1.11 0.89 0.89 0.90

45.00 47.57 47.74 47.90 1.16 1.14 1.13 0.86 0.87 0.89

50.00 53.46 53.53 53.59 1.20 1.17 1.15 0.84 0.85 0.8725.40 25.89 26.19 26.49 1.06 1.06 1.07 0.94 0.94 0.94

Heave V.R1.^2 V.R2.^2 V.R3.^2

Wheel

Rate 1

Wheel

Rate 2

Wheel

Rate 3

Rising

Rate 1

Rising

Rate 2

Rising

Rate 3

mm ratio ratio ratio ratio ratio ratio % % %-25.00 1.33 1.20 1.08 0.75 0.84 0.92 -21.53 -16.54 -11.78

-20.00 1.24 1.14 1.05 0.80 0.88 0.96 -16.19 -12.31 -8.62

-15.00 1.18 1.09 1.02 0.85 0.92 0.98 -11.45 -8.63 -5.94-10.00 1.12 1.06 0.99 0.89 0.95 1.01 -7.24 -5.41 -3.67

-5.00 1.08 1.02 0.97 0.93 0.98 1.03 -3.46 -2.57 -1.71

0.00 1.04 1.00 0.96 0.96 1.00 1.05 0.00 0.00 0.005.00 1.01 0.97 0.94 0.99 1.03 1.06 3.26 2.40 1.57

10.00 0.98 0.95 0.93 1.02 1.05 1.08 6.46 4.74 3.0915.00 0.95 0.93 0.91 1.05 1.07 1.09 9.74 7.15 4.67

20.00 0.92 0.91 0.90 1.09 1.10 1.11 13.26 9.75 6.4025.00 0.89 0.89 0.88 1.12 1.13 1.13 17.17 12.67 8.3930.00 0.86 0.86 0.86 1.17 1.16 1.16 21.64 16.05 10.75

35.00 0.82 0.83 0.84 1.22 1.20 1.19 26.88 20.04 13.60

40.00 0.78 0.80 0.82 1.28 1.25 1.22 33.08 24.80 17.06

45.00 0.74 0.76 0.79 1.35 1.31 1.27 40.48 30.51 21.27

50.00 0.70 0.73 0.76 1.43 1.38 1.32 49.32 37.36 26.37

25.40 0.89 0.88 0.88 1.13 1.13 1.14 17.50 12.92 8.56



Page 19 of 99

REAR 3RD SPRING CHARTS

Heave

ARB1

Def.

ARB2

Def.

ARB3

Def.

Force

Ratio 1

Force

Ratio 2

Force

Ratio 3

Vel.

Ratio1

Vel.

Ratio2

Vel.

Ratio3


-20.00 -18.12 -18.71 -19.30 0.85 0.89 0.92 1.18 1.13 1.08-15.00 -13.80 -14.21 -14.62 0.88 0.91 0.95 1.14 1.09 1.06-10.00 -9.33 -9.58 -9.84 0.91 0.94 0.97 1.10 1.07 1.03

-5.00 -4.73 -4.84 -4.96 0.93 0.96 0.98 1.07 1.04 1.02

0.00 0.00 0.00 0.00 0.96 0.98 1.00 1.05 1.02 1.005.00 4.84 4.94 5.04 0.98 1.00 1.01 1.02 1.00 0.99

10.00 9.79 9.97 10.14 1.00 1.01 1.03 1.00 0.99 0.9715.00 14.84 15.08 15.32 1.02 1.03 1.04 0.98 0.97 0.96

20.00 20.00 20.28 20.55 1.04 1.05 1.05 0.96 0.95 0.95

25.00 25.26 25.55 25.85 1.06 1.06 1.07 0.94 0.94 0.9430.00 30.62 30.91 31.21 1.08 1.08 1.08 0.92 0.93 0.93

35.00 36.09 36.36 36.63 1.10 1.10 1.09 0.91 0.91 0.9240.00 41.67 41.89 42.12 1.13 1.12 1.10 0.89 0.90 0.91

45.00 47.37 47.52 47.68 1.15 1.14 1.12 0.87 0.88 0.89

50.00 53.20 53.25 53.31 1.18 1.16 1.13 0.85 0.86 0.8825.40 25.68 25.98 26.28 1.06 1.07 1.07 0.94 0.94 0.94

Heave V.R1.^2 V.R2.^2 V.R3.^2

Wheel

Rate 1

Wheel

Rate 2

Wheel

Rate 3

Rising

Rate 1

Rising

Rate 2

Rising

Rate 3

mm ratio ratio ratio ratio ratio ratio % % %-25.00 1.50 1.36 1.23 0.67 0.74 0.81 -27.26 -22.93 -18.85

-20.00 1.39 1.27 1.17 0.72 0.79 0.86 -21.19 -17.71 -14.42

-15.00 1.29 1.20 1.12 0.77 0.83 0.90 -15.46 -12.83 -10.35-10.00 1.21 1.14 1.07 0.82 0.88 0.93 -10.04 -8.28 -6.61

-5.00 1.15 1.09 1.03 0.87 0.92 0.97 -4.90 -4.01 -3.17

0.00 1.09 1.04 1.00 0.92 0.96 1.00 0.00 0.00 0.005.00 1.04 1.01 0.97 0.96 0.99 1.03 4.72 3.81 2.95

10.00 1.00 0.97 0.95 1.00 1.03 1.06 9.32 7.48 5.7415.00 0.96 0.94 0.92 1.04 1.06 1.08 13.87 11.06 8.40

20.00 0.92 0.91 0.90 1.08 1.10 1.11 18.46 14.62 11.0025.00 0.89 0.88 0.88 1.13 1.13 1.14 23.17 18.24 13.5930.00 0.85 0.86 0.86 1.17 1.17 1.16 28.09 21.98 16.24

35.00 0.82 0.83 0.84 1.22 1.21 1.19 33.32 25.93 19.01

40.00 0.79 0.80 0.82 1.27 1.25 1.22 38.98 30.17 21.97

45.00 0.75 0.78 0.80 1.33 1.29 1.25 45.18 34.80 25.19

50.00 0.72 0.75 0.78 1.39 1.34 1.29 52.06 39.91 28.75

25.40 0.88 0.88 0.88 1.13 1.13 1.14 23.55 18.53 13.80



Page 20 of 99

REAR GEOMETRY CHARTS

Wheel

Def.

Ride

Height

R.C.

Height

R.C. to

O-L

R.C.

Parity

Cam.

Angle

Cam.

Change

VSAL

Lateral

VSAL

Long

Bump

Steer Scrub Anti-Lift

Anti-

Squat

mm mm mm mm % deg deg mm mm deg mm % %-25 90.01 109.62 -19.61 121.55 -0.96 0.55 2692 12735 0.01 -2.94 25.84 41.52

-20 85.01 103.55 -18.54 121.33 -1.07 0.44 2677 12594 0.00 -2.28 25.80 40.79

-15 80.01 97.49 -17.48 121.11 -1.18 0.33 2662 12455 0.00 -1.65 25.75 40.05

-10 75.01 91.44 -16.43 120.90 -1.29 0.22 2647 12319 0.00 -1.07 25.71 39.29

-5 70.01 85.40 -15.39 120.69 -1.40 0.11 2631 12184 0.00 -0.51 25.66 38.50

0 65.01 79.37 -14.36 120.48 -1.51 0.00 2616 12052 0.00 0.00 25.62 37.69

5 60.01 73.35 -13.34 120.28 -1.62 -0.11 2600 11921 0.00 0.48 25.58 36.86

10 55.01 67.34 -12.33 120.08 -1.73 -0.22 2585 11791 0.00 0.92 25.54 36.01

15 50.01 61.34 -11.33 119.89 -1.85 -0.34 2569 11664 0.00 1.33 25.49 35.13

20 45.01 55.35 -10.34 119.69 -1.96 -0.45 2554 11538 0.00 1.70 25.45 34.22

25 40.01 49.38 -9.36 119.50 -2.08 -0.57 2538 11414 0.01 2.04 25.41 33.28

30 35.01 43.40 -8.39 119.31 -2.19 -0.68 2522 11292 0.01 2.34 25.37 32.31

35 30.01 37.44 -7.43 119.13 -2.31 -0.80 2507 11171 0.01 2.60 25.33 31.31

40 25.01 31.49 -6.48 118.94 -2.42 -0.91 2491 11052 0.02 2.83 25.29 30.27

45 20.01 25.55 -5.54 118.76 -2.54 -1.03 2475 10934 0.02 3.03 25.25 29.19

50 15.01 19.62 -4.60 118.58 -2.66 -1.15 2459 10818 0.02 3.18 25.22 28.07

+ in, - out

Note: Ride Height is to “0” line



Page 21 of 99

x6 x5 x4 x3 x2 x Const

Spring Deflection -7.09E-08 7.67E-06 -2.28E-04 1.00E+00 0.00E+00

Spring Force Ratio -2.83E-07 2.30E-05 -4.57E-04 1.00E+00

Spring (Force Ratio)^2 8.03E-14 -1.30E-11 7.88E-10 -5.88E-07 4.62E-05 -9.15E-04 1.00E+00

Spring Rising Rate 4.82E-13 -6.52E-11 3.15E-09 -1.77E-06 9.25E-05 -9.15E-04

ARB1 Deflection 3.32E-08 4.65E-06 -1.06E-04 9.93E-01 0.00E+00

ARB1 Force Ratio 1.33E-07 1.40E-05 -2.13E-04 9.93E-01

ARB1 (Force Ratio)^2 1.76E-14 3.71E-12 1.38E-10 2.58E-07 2.78E-05 -4.22E-04 9.86E-01

ARB2 Deflection 2.50E-08 5.43E-06 -2.54E-04 9.99E-01 0.00E+00ARB2 Force Ratio 1.00E-07 1.63E-05 -5.09E-04 9.99E-01

ARB2 (Force Ratio)^2 1.00E-14 3.26E-12 1.64E-10 1.83E-07 3.28E-05 -1.02E-03 9.98E-01

ARB3 Deflection 1.68E-08 6.21E-06 -4.02E-04 1.01E+00 0.00E+00ARB3 Force Ratio 6.72E-08 1.86E-05 -8.05E-04 1.01E+00

ARB3 (Force Ratio)^2 4.52E-15 2.51E-12 2.39E-10 1.05E-07 3.81E-05 -1.62E-03 1.01E+00

3rd Spr1 Deflection 1.13E-08 -1.44E-06 2.83E-04 9.85E-01 0.00E+00

3rd Spr1 Force Ratio 4.51E-08 -4.31E-06 5.67E-04 9.85E-01

3rd Spr1 (Force Ratio)^2 2.04E-15 -3.90E-13 6.98E-11 8.41E-08 -8.18E-06 1.12E-03 9.71E-01




3rd Spr3 Deflection 9.31E-10 -3.80E-07 -7.83E-07 9.98E-01 0.00E+00

3rd Spr3 Force Ratio 3.72E-09 -1.14E-06 -1.57E-06 9.98E-01

3rd Spr3 (Force Ratio)^2 1.39E-17 -8.48E-15 1.28E-12 7.43E-09 -2.27E-06 -3.12E-06 9.95E-01

RC Heave 8.65E-11 2.56E-07 1.61E-04 -8.43E-01 2.49E+01

RC to OL 8.65E-11 2.56E-07 1.61E-04 1.57E-01 -1.01E+01Camb Angle -5.72E-11 4.78E-10 -4.62E-05 -1.14E-02 -3.00E+00

Camber Change -5.72E-11 4.75E-10 -4.62E-05 -1.14E-02 0.00E+00

VSAL Lat 1.82E-05 -3.24E-03 3.65E-01 -4.21E+01 5.02E+03

VSAL Long 1.69E-05 -3.52E-03 5.04E-01 -7.29E+01 1.20E+04

Bump Steer -4.48E-11 3.49E-08 -1.26E-05 -3.80E-04 0.00E+00

Scrub -8.15E-11 7.33E-08 -5.00E-04 2.94E-02 0.00E+00

Antidive 6.58E-09 1.62E-06 4.88E-04 1.49E-01 2.53E+01

x6 x5 x4 x3 x2 x Const

Spring Deflection -5.75E-08 -1.08E-06 2.82E-04 9.46E-01 0.00E+00

Spring Force Ratio -2.30E-07 -3.24E-06 5.63E-04 9.46E-01

Spring (Force Ratio)^2 5.29E-14 1.49E-12 -2.49E-10 -4.39E-07 -5.82E-06 1.07E-03 8.96E-01

Rising Rate 3.18E-13 7.46E-12 -9.95E-10 -1.32E-06 -1.16E-05 1.07E-03

ARB1 Deflection 2.32E-07 -8.28E-06 1.63E-03 9.79E-01 0.00E+00

ARB1 Force Ratio 9.28E-07 -2.49E-05 3.27E-03 9.79E-01

ARB1 (Force Ratio)^2 8.61E-13 -4.61E-11 6.69E-09 1.65E-06 -3.80E-05 6.40E-03 9.59E-01

ARB2 Deflection 1.98E-07 -6.66E-06 1.23E-03 1.00E+00 0.00E+00

ARB2 Force Ratio 7.91E-07 -2.00E-05 2.47E-03 1.00E+00

ARB2 (Force Ratio)^2 6.25E-13 -3.16E-11 4.30E-09 1.48E-06 -3.39E-05 4.94E-03 1.00E+00

ARB3 Deflection 1.68E-07 -5.36E-06 8.32E-04 1.02E+00 0.00E+00

ARB3 Force Ratio 6.72E-07 -1.61E-05 1.66E-03 1.02E+00

ARB3 (Force Ratio)^2 4.51E-13 -2.16E-11 2.49E-09 1.32E-06 -3.01E-05 3.40E-03 1.05E+00







3rd Spr3 Deflection 9.71E-08 -8.90E-06 1.53E-03 1.00E+00 0.00E+00

3rd Spr3 Force Ratio 3.89E-07 -2.67E-05 3.06E-03 1.00E+00

3rd Spr3 (Force Ratio)^2 1.51E-13 -2.07E-11 3.09E-09 6.14E-07 -4.40E-05 6.11E-03 1.00E+00

RC heave 5.20E-10 -2.13E-07 2.04E-04 -1.20E+00 7.94E+01

RC to OL 5.20E-10 -2.13E-07 2.04E-04 -2.05E-01 1.44E+01

Camb Angle -1.80E-11 -1.81E-08 -1.42E-05 -2.23E-02 -1.51E+00

Camber Change -1.79E-11 -1.81E-08 -1.42E-05 -2.23E-02 0.00E+00

VSAL Lat -1.85E-09 2.59E-06 -1.40E-03 -3.08E+00 2.62E+03

VSAL Long 9.45E-08 -6.52E-05 3.68E-02 -2.64E+01 1.21E+04

Bump Steer 1.55E-11 -8.64E-09 9.28E-06 3.77E-05 0.00E+00

Scrub -3.62E-10 1.59E-07 -7.21E-04 9.94E-02 0.00E+00

Front polynomials with heave

Rear polynomials with heave





Page 23 of 99

1.10. BRAKES ASSEMBLY

CALIPERS TECHNICAL DETAILS

Introduction

The aim of this document is to inform the A1GP Teams about the caliper features and its components givingalso information about when and how service it.

Caliper technical details

P6 28/30/36 Aluminium Mono-block.

Front left p/n XA8.35.01

Front right p/n XA8.35.02

Rear left p/n XA8.35.11

Rear right p/n XA8.35.12

Maximum stack: 78mm

Caliper service

The recommended working temperature for the A1GP caliper is < 210°C.

Over 210°C the seals fitted into the caliper can be overheated and they will not guarantee the right

performances of the caliper (sealing, roll back, fluid absorption,…).

In order to keep under control the caliper temperature Brembo suggests to use its thermo-tape:

scale 132°C/210°C p/n 025168.10

scale 210°C/260°C p/n 025168.13

If the caliper temperature goes over 210°C the seals have to be opportunely refreshed.

After 2000km the caliper has to be serviced changing the following components:

1. pistons

2. seals

3. pad abutments

4. bleed screws

Ti insert

The caliper has fitted Ti inserts in order to reduce the heat exchange between the pads and the caliper

body/brake fluid. The thickness of the Ti inserts is 4mm. The Ti inserts are just clipped on the pistons.

Even when the Ti inserts are fitted on the pistons the maximum carbon stack is 78mm.



Page 24 of 99

Pad

abutment

(side)

Ti insert

Bleed screw

Pad

abutment

(Bottom)

Screw M5

for the padabutment

(bottom)

Screw M4

for the pad

abutment

(side)

Pad

abutment

(under

central

bridge)



Page 25 of 99

Component

Quantity

per

caliper

p/n Mounting instruction

Inlet nipple 1 06.3710.20 Mounting torque 25Nm (fit it with copper seal) @ cold

Copper seal 1 06.2196.13

Bleeding screw 2 05.2812.13 Mounting Torque 15Nm @ cold

Piston Seal Ø 28 2 05.5955.52

Before the assembly plunge it in the assembly fluid for at least 24

hours and no longer the 48 hours

Piston Seal Ø 30 2 05.5955.53Before the assembly plunge it in the assembly fluid for at least 24


Piston Seal Ø 36 2 05.5955.56Before the assembly plunge it in the assembly fluid for at least 24


Assembly fluid 250ml - 04.8164.90 Use only for new piston seals

Brake fluid 500cl

(20 bottles)

- 04.8164.11

Piston Ø 28 2 20.8650.12

Piston Ø 30 2 20.8650.13

Piston Ø 36 2 20.8650.16

Ti insert Ø 28 2 20.8204.23

Ti insert Ø 30 2 20.8204.24

Ti insert Ø 36 2 20.8204.27

Elastic ring for the insert Ø 28 2 05.2091.30



Conical spring for the piston Ø 28 2 05.4360.42

Conical spring for the piston Ø 30 2 05.4360.43

Conical spring for the piston Ø 36 2 X93.41.09

Pad abutment

(Under central bridge)

1 20.7268.47

Pad abutment (Side) 4 20.7268.30

Fit it using the correspondent screw (p/n XA0.03.50). The back of

the pad abutment has to touch in all its points the caliper body. The

distance between the two pad abutment of each pad has to be

161mm MIN!

Compass lower Ø23,5 1 XA1.G7.60

Compass higher 1 X98.82.80

Pad abutment (Bottom) 4 20.7269.22 Fit it using the correspondent screw (p/n 05.4424.61).

Screw M4x6 for the pad

abutment (side)4 XA5.K0.50 Mounting torque 4Nm @ cold

Screw M5x12 for the pad

abutment (bottom)8 XA0.03.51 Mounting torque 8Nm @ cold



Page 26 of 99

CARBON-CARBON BRAKES

Introduction

The aim of this document is to help the A1GP Teams on managing the carbon friction material. Because of

wear rate and performance are strictly related with the pads and the disc working temperature in the next

rows the brake system cooling will be focused.

Carbon technical details

Disc

Carbon material: MBC 100

Brembo p/n: XA7.88.B2

Dimensions: 278mm x 28mm x 44 mm

Ventilation holes. 30x10 mm oblong holes

Minimum thickness: 17mm

Pad

Carbon material: CCR 400

Brembo p/n: 07.9206.41

Dimensions: 25mm x 44mm

Back plate: 12mm

Minimum thickness: 12mm

Carbon material working temperature

In order to have the best performances from the carbon material MBC 100 the disc working temperature at

the beginning of the braking phase (it is what Brembo calls “Initial Temperature”, measurable in the end ofthe straight before touching the brakes) have to be in the range of 350°C-550°C.

Use the Brembo paint (p/n 02.5711.10) on the discs in order to check the disc temperature. In a normal use it

should be:

the green paint completely turn to white (T> 430°C);

the red paint turn to white just close to the friction surface (T>610°C);

do not remove paint as it erode the surface when removed;

On a green track, during the first practice, Brembo suggests to start always with partially blanked ducts

(from 20% to 50% it depends on the circuit duty). After the first run adjust the duct blanking in order to

guarantee the correct working temperature of carbon material and caliper.

Bedding

With new discs and pads it is necessary generate a high temperature in order to guarantee the quick

bedding of the disc and pad contact surfaces. On the out lap the driver has not to be too gentle on the

brakes in order to avoid any glazing problem.

Brake ducts: about 50% blanked.



Page 27 of 99

Glazing

The “glazing” is a physical phenomenon that happens when the carbon material is used in low

temperature/energy conditions. If the disc and the pads are glazed the friction coefficient drop

dramatically creating problem on the brake balance and on the braking performance.

It is quite easy recognize a disc or a pad glazed: the surface looks shiny and touching it with a finger it

remains normally quite clean (or cleaner than with the carbon not glazed!).

On the A1GP car the rear axle is more sensible to the glazing because of the balance distribution and the

brake system cooling, this is the reason why Brembo suggests to the teams to consider always a partial rear

duct blanking on the light duty tracks.

The glazing is a degenerative phenomenon, if it starts it is possible trying to recover blanking the ducts and

asking the driver to push hard on the brakes. In this case the best thing to do is glass paper the disc and/or

the pads in order to remove the glazed layer.

In case of rain / cold conditions / extremely light track

Carbon can be used in raining condition without any problem, but a blank of the air ducts of about 50% is

recommended in order to have the initial disc temperature higher then 300-350°C.

The same procedure has to be followed if the track is extremely light on brakes or if it is in low grip condition.

New pads on a used disc

It could happen it is necessary fit new pads on a used disc or vice versa, in these cases for the first laps the

pedal could feel a bit longer because of the pad and the discs surfaces have to be bedded.

In this case Brembo suggest to follow the same procedure recommended for the “bedding”.

Remember that disc and pads must be changed when the minimum thicknesses are:

DISCS PADS

New Minimum thickness New Minimum thickness

28mm 17mm 25mm 12mm

The Minimum thickness is based on piston travel and covers the situation where 2 pads are at 12mm and

disc at 17mm, then the caliper pistons are still within the caliper seals. If the pads are thicker, the disc could

be thinner.

Disc resurfacing

The discs can be resurfaced in order to have flat rubbing surfaces and the disc holes centred in the disc

thickness (the disc wear could not be even between the two half of the disc).

The disc resurface is not easy and if it is not done properly the disc could generate judder. If you are going

to resurface the discs Brembo recommends to contact Brembo and send the discs to the Brembo factory in

order to be machined.



Page 28 of 99

Storing

Carbon discs and pads must be stored in appropriate boxes in order to avoid any possible damage during

transportation.

Contamination

Carbon discs and pads do not have to go in touch with lubricants, brake fluids, hydrocarbons, solvents or

acids.

Notes

The thickness of the discs and pads to start a Race is a different situation; the wear prediction has to be

calculated from the practice sessions.

Brake balance: 56% starting setting

DISC BELL CAP HEAD BOLTS TIGHTENING TORQUE

Disc Bell Cap Head Bolts Tightening Torque is:

Disc Bell Cap Heads Toque: 5 Nm



Page 29 of 99



Page 30 of 99

1.11. WHEEL NUTS

Wheel Nut Tightening Torque and Wheel Gun pressures are:



Page 31 of 99

1.12. PEDALS

The Pedals Assembly is as follows:

To have the correct direction for the Brake Bias balance adjuster, the Front and Rear master cylinder have

to be placed in the correct position.



Page 32 of 99

Adjustments can be made for different height drivers. Different parts are required depending in the position.

An Extra tall driver kit can be ordered:

Brake pedal and pad

Throttle pedal and pad

Steering column mount

Extraction seat



Page 33 of 99

1.13. STEERING

1.13.1. STEERING WHEEL POSITION

Steering Wheel position can be adjusted by changing a part of the Steering Column:

1.13.2. STEERING RACK PINION GEARS

Steering Rack is available with two ratio options:

- 37mm per revolution (6 teeth)

- 43.3mm per revolution (7 teeth)

The layout is the following:



Page 34 of 99



Page 35 of 99

1.13.3. STEERING WHEEL

The Steering Wheel layout is as follows:



Page 36 of 99

1.13.4. SWITCH PANNEL

Switch panel layout is the following:



Page 37 of 99

1.14. OIL SYSTEM

The Oil System has the following parts:

The layout of the system as follows:



Page 38 of 99

In the Oil Tank there is a foam baffle in the top and a pick up filter in the bottom. These have to be checked

on a regular basses:

The measurements for the oil tank capacity are the follows:





Page 40 of 99

1.15. HYDRAULIC SYSTEM

Hydraulic system layout as shown:

Capacity:

As described in Section 1.5, level and characteristics for the Oil Tank are:

Description CapacityMinimum

LevelReference Notes

Hydraulic Fluid 50mm Above the baffle plate



Page 41 of 99

The Different connections in the Hydraulic System are:

The Valve Block Mounting Bracket is assembled with components laid out as shown:

From the Valve Block to the Oil Tank





Page 43 of 99

The Rest of the connections of the Valve Block are the following:

CLUTCH

VALVE

UP

VALVE

DW VALVE PRESSURE

SENSOR

EMERGENCY

VALVE

TO PUMP

BLUE

HOSE

TO

ACCUM

GREEN

HOSE

TO HYDR

TANK

RETURN

RED HOSE SAFETY

VALVE 80

Bar

DON’T

TOUCH

CLUTCH

PINK

HOSE

EMERGENCY

ACCUM

BROWN HOSE

DW YELLOW HOSE

UP

VIOLET

HOSE

DW YELLOW

HOSE

PRESSURE

SENSOR

YELLOW HOSE

BETWEEN HYDR

TANK AND PUMP

THE WIRES

WITHOUT

FASTON

BECAUSEARE INSIDE

OF THE

CONNECTOR







Page 46 of 99

1.17. COOLING SYSTEM

The Cooling System is divided in to Engine Cooling and Gearbox Cooling. The layout is as follows:



Page 47 of 99

Connections in the Left Hand Radiator are as follows:

And in the Right Hand radiator:

Engine Cooling is done by the Water System



Page 48 of 99

1.17.1. WATER SYSTEM

The Water system layout is as follows:

Header Tank Level

The Header Tank Level has to have a water volume of 475cc at 80ºC Temperature. Different

References can be taken:







Page 51 of 99

Top Engine Mounts and tie Bar

A section of the Top Engine Mounts:

A tie bar is used to increase the lateral beam stiffness of the engine. Shims are supplied to adjust

the assembly length of the tie bars:



Page 52 of 99

Engine side view:

Note: It may necessary to shim the

rod end joint to remove vertical play.





Page 54 of 99



Page 55 of 99



Page 56 of 99

1.20. SAFETY WHEEL TETHERS

FRONT TETHERS – WHEEL SIDE FRONT TETHERS – CHASSIS SIDE

REAR TETHERS – WHEEL SIDE REAR TETHERS – GEARBOX SIDE

Wheel side installation:

• Front: eyelet trapped around tether bobbins on upright.

• Rear: eyelet trapped around tether dog bones mounted on upright.

Chassis side installation:

• Front: front tether eyelet trapped around lower wishbone front & rear leg central bracket;

• Rear: front and rear eyelet trapped around dog bones mounted to gearbox case.



Page 57 of 99

1.21. EXTINGUISHER SYSTEM LAYOUT





Page 59 of 99



Page 60 of 99





Page 62 of 99

2. SET-UP

2.1. MICHELIN TYRE INFORMATION

Tyre dimensions depend on tyre pressure, rim width and camber angle.

The stiffness values are based on the recommended inflating pressure (hot tyres).

Front Tyres

Description Left Hand Side Right Hand Side

Design Cambers -3.0° -3.0°

Design Tyre DiameterTyre Size

640mm

26/64R13

640mm

26/64R13

Tyre Static Loaded Radius(155Kg per axle)

307mm @ 22 lbs/in²

1.5bar

307mm @ 22 lbs/in²

1.5bar

Note:- Front total axle load 682lbs 310Kg @ 43.8% weight distribution with driver and 45litres fuel.

Rear Tyres

Description Left Hand Side Right Hand Side

Design Cambers -1.5° -1.5°

Design Tyre DiameterTyre Size

660mm

35/66R13

660mm

35/66R13

Tyre Static Loaded Radius

(436lbs 198Kg per axle)

317mm @ 22 lbs/in²

1.5bar

317mm @ 22 lbs/in²

1.5bar

Note:- Rear total axle load 871lbs 395Kg @ 56.2% weight distribution with driver and 45litres fuel.



Page 63 of 99

2.2. SUGGESTED SETUP

The set-up considers the complete car, with all fluids [water, oil], driver and 45 kilograms of fuel, ready to

race.Generic Starting

EVENT Test CIRCUIT Silverstone DATE

DRIVER LAP DIST Km CHASSIS A1GP-F01

DIFF POWERFLOW ENG. NO FUEL 30 Kg Litres 40.5

PLATES 6 plates Active per side MILEAGE 0 Km RACK 6 TOOTH

RAMPS 65°power 45°off power DISCS 28mm carbon

PRE-LOAD 35Nm PADS carbon

SKID FRT 10mm jabroc BRAKE BAL 54 % BALLAST Kg

M/C FRONT 17.4mm Ø M/C REAR 19mm Ø RAD EXIT Chimney V1 Louvers 0

RATIOS 1st 13 : 36 2nd 14 : 30 3rd 15 : 27 4th 18 : 28 5th 18 : 25 6th 18 : 23 DROP 27 : 16 BEVEL 15 : 23

M.P.H. 82.3 106.4 126.6 146.6 164.1 178.4 FINAL 16 : 51 RPM 8700

K.P.H. 132 170 203 234 263 285

FRONT WING

TYPE Std

° ANGLE °

0 mm GURNEY 0 mm

Main Pain Ex mm

Height to "0" Line Front mm End Plate Height to "0" Line Rear mm

TILT

0.00

Std GEOMETRY Std

- 3.0 ° CAMBER - 3.0 °

LEFT FRONT 0.00 ° CASTER 0.00 ° RIGHT FRONT

TOE 2.0 mm OUT 1.02 INS 26.0 MM RIDE HT 1.02 INS 26.0 MM TOE 2.0 mm OUT

Ride HT at Skid 1.06 INS 26.8 MM

TRACK ROD 603 mm 1500 lbs/in SPRINGS 1500 lbs/in TRACK ROD 603 mm

Bar COLD PSI 16.7 1500 lbs/in W. RATE 1500 lbs/in Bar COLD PSI 17.1

Bar HOT PSI 23.2 1.00 RR 0.0% M. RATIO 1.00 RR 0.0% Bar HOT PSI 23.2

DUCTS D2 27.99% % FRONT 27.99% DUCTS D2

PUSH ROD 654.9 mm Penske VDP-45 DAMPERS Penske VDP-45 PUSH ROD 654.9 mm

CAN PSI 7 bar B = 5 R = 5 SETTINGS B = 5 R = 5 CAN PSI 7 bar

TYRE comp 505 253 mm DAMPER C/C 253 mm TYRE comp 505

WB Length FWD mm 1 flat 0.6 mm ride height Pushrod 1 turn 4.1 mm ride height WB Length FWD mm

WB Length RWD mm DONUTS 2 3rd SPRING GAP 8mm WB Length RWD mm

ROLL BAR DIA. 13.5 mm

3 2 1 Pos'n T,bar Pos'n 1 2 3 FRONT WR % 55.99%

Soft Mid Hard RAKE Hard Mid Soft TOTAL WR 53580.203 ° REAR WR % 44.01%

R-01 GEOMETRY R-01

- 2.2 ° Shim 4.38 CAMBER - 2.2 ° Shim 4.38

LEFT REAR 1.52 INS 38.5 MM RIDE HT 1.52 INS 38.5 MM RIGHT REAR

Drop HT MM Ride HT at Skid 1.49 INS 37.8 MM

TOE 2.0 mm IN 1300 lbs/in SPRINGS 1300 lbs/in TOE 2.0 mm IN

TOE LINK 582 mm 1179 lbs/in W. RATE 1179 lbs/in TOE LINK 582 mm

Bar COLD PSI 15.1 1.05 M. RATIO 1.05 Bar COLD PSI 15.1

Bar HOT PSI 21.8 22.01% % REAR 22.01% Bar HOT PSI 21.8

TYRE DIA 647.95 mm Penske VDP-45 DAMPERS Penske VDP-45 TYRE DIA 25.51 inch

DUCTS D1 B = 5 R = 5 SETTINGS B = 5 R = 5 DUCTS D1

PUSH ROD 505.0 mm mm DAMPER C/C mm PUSH ROD 505.0 mm

CAN PSI 7 bar 1 flat 1.0 mm ride height Pushrod 1 turn 6.4 mm ride height CAN PSI 7 bar

TYRE comp 505 DONUTS 2 3rd SPRING GAP TYRE comp 505

ROLL BAR DIA. 6.5 mm

3 2 1 Pos'n T,bar Pos'n 1 2 3

Soft Mid Hard Hard Mid Soft

REAR WING

TYPE 2 element

ANGLE Main Plain 9 ° 58.3 °

HOLE 5

GURNEY 10 mm

8

Length 52.5

15.5

1.18

1.60

1.04

1.50

794.5

785.5

1.15

1.60

1.04

1.50

794.5

785.5

447.5

21.021.0

Flap

313.5313.5

10.0



Page 64 of 99

2.3. SETUP ADJUSTMENT

The different adjustments that can be made in the car are the following:

- Ride Height

- Camber

- Toe

- Damper’s setting

- 3rd Spring

- ARB

The changes are set as following:

Positive Change in: Means:

Ride height Car moves up

Camber Upper part of rim moves outwards

Toe Toe Out

2.3.1. RIDE HEIGHT

The starting point set-up gives ride heights at the front and rear axle centrelines at the plane of thebottom of the plank (Z = -10.0mm), as per the wind tunnel data. The ride height is defined as the

distance between that plane and the road surface.

For the adjustment of the Ride Height the pushrod adjusters are used. Both Front and Rear have the same

pitch 5/8 – 24 UNEF, what it means a change of 2.117mm per turn.

FRONT

Adjustment Pushrod Change Ride Height Change Camber Effect Toe Effect

Ride Height +1 turn +4.2mm +0.05degs 0mm

Ride Height +1 flat +0.7mm +0.008degs 0mm



Page 65 of 99

REAR

Adjustment Pushrod Change Ride Height Change Camber Effect Toe Effect

Ride Height +1 turn +6.35mm +0.14degs 0mm

Ride Height +1 flat +1.06mm +0.023degs 0mm





Page 67 of 99

REAR CAMBER ADJUSTMENT

Adjustments in Track Rod and Pushrod to maintain same Ride Height and Toe with a Camber Change:

• 1 shim less (-1 shim) -0.875 mm

Camber change +0.224 degs

Track Rod Adjustment

Track Rod change -0.540 mm

Track Rod change -0.255 turnsTrack Rod change 0 turn 1.53 flats Shorter

Pushrod Adjustment

Pushrod change 0.175 mm

Pushrod change 0.083 turns

Pushrod change 0 turn 0.50 flats Longer





Track Rod change -0.510 turns

Track Rod change 0 turn 3.06 flats Shorter

Pushrod Adjustment








Track Rod change -0.765 turns

Track Rod change 0 turn 4.59 flats Shorter

Pushrod Adjustment




Shim Thickness @ design ride height 55mm

Camber Angle Total Shim

Degrees 0.875 1.75 3.5 Pack mm

1/2 3 10.50

3/4 1 1 2 9.63

1 1 2 8.75

1 1/4 1 2 7.88

1 1/2 2 7.00

1 3/4 1 1 1 6.13

2 1 1 5.25

2 1/4 1 1 4.38

2 1/2 1 3.50

2 3/4 1 1 2.63

3 Max 1 Max 1.75

3 1/4 1 0.88

3 1/2 No Shims 0.00

Shim Thickness

N o o f S h i m s R e q u i r e d



Page 68 of 99

2.3.3. TOE

Adjustment in Front and Rear Toes are made with the Toe Link adjusters. The change in toe are as follows:

FRONT

For 1 mm of toe change 2.8 Flats change

REAR

For 1 mm of toe change 1.6 Flats change



Page 69 of 99

2.3.4. SPRINGS & DAMPERS

FRONT

Front Springs

Front Spring Range is from 1000 lb/in to 1800 lb/in in 100 lb/in steps. Each Spring Rate has its own

Displacement Spacer designed to keep the same static damper length and Static Ride Height. Blue

Spacers are for the Front.

FRONT DAMPER SPRING SPACER

Finish: BLUE ANODISE

Part Number Spring (Lb/in) Spacer Thickness (mm)

F01-F35-003 1000 7.35

F01-F35-004 1100 6.68

F01-F35-005 1200 6.12F01-F35-006 1300 5.65

F01-F35-007 1400 5.25

F01-F35-008 1500 4.90

F01-F35-009 1600 4.59

F01-F35-010 1700 4.32

F01-F35-011 1800 4.08

REAR



Page 70 of 99

Rear Springs

Rear Spring Range is from 800 lb/in to 1500 lb/in in 100 lb/in steps. The same concept as the front

displacement spacers are designed for the Rear, the spacers are in red for the rear.

REAR DAMPER SPRING SPACER

Finish: RED ANODISE

Part Number Spring (Lb/in) Spacer Thickness (mm)

F01-F37-001 800 15.06

F01-F37-002 900 13.70F01-F37-003 1000 12.61

F01-F37-004 1100 11.72

F01-F37-005 1200 10.97

F01-F37-006 1300 10.34

F01-F37-007 1400 9.81

F01-F37-008 1500 9.34



Page 71 of 99

DAMPERS ADJUSTMENT

Dual Bleed Shaft

The Dual-Bleed Adjuster consists of two knobs in series that are internally sprung against each other to

provide positive detent feel when making adjustments. They are adjusted radially in a clockwise direction

to add damping in compression and rebound.

STIFFER COMPRESSION (+)STIFFER REBOUND (+)

(-) SOFTER COMPRESSION(-) SOFTER REBOUND

STIFFER COMPRESSION (+)STIFFER REBOUND (+)

(-) SOFTER COMPRESSION(-) SOFTER REBOUND

Dual Bleed Compression Adjustment

The Compression Bleed Adjuster affects the low-speed region of the compression curve (from 0-2in/sec)

and will be more effective the higher the overall low-speed forces (i.e. the more low-speed compression

built into the damper). Range: (30) clicks

COMPRESSIONADJUSTER



Page 72 of 99

Dual Bleed Rebound Adjuster

The Rebound Bleed Adjuster affects the low-speed region of the rebound curve (from 0-2in/sec) and will be

more effective the higher the overall low-speed forces (i.e. the more low-speed rebound built into the

damper). Range: (30) clicks

REBOUNDADJUSTER

Dual Bleed Needle Assembly

JT-DBCOMP.

This is a break down of the needle assembly. This part is purchased fully assembled.

If the shock is not adjusting properly there may be a problem with this assembly. It is usually related to the

poppets inside the needle. If re-assembling the needle, be sure to use brown loctite to seal cap.

NEEDL CAP

SPRING

SP-17POPPET

HOUSING

0R-2007-B



Page 73 of 99

Front Damper Characteristics







Page 76 of 99

2.3.6. ANTIROLL BAR STIFFNESS

There are three different diameters of Anti Roll Bars and a Roll Free system:

• Roll Free System

• Ø6.5mm

• Ø9.0mm

• Ø13.5mm

The links to the T bar can be fitted in three different positions depending on the required stiffness.

At Full soft (Position 3) the links fitted in the most outboard position.

At Full Stiff (Position 1) the links fitted in the most inboard position.

Dimensions

Dimensions of the different components are:

• Top element (T bar):

• Ø6.5mm bar.



Page 77 of 99

• Ø9.0mm

• Ø13.5mm

Front

Velocity ratio: 0.99

Bar system wheel rate, pure roll Kg/mm

Bar diameter Wheel rate P1 Wheel rate P2 Wheel rate P3

6.5mm 4 2.6 1.8

9.0mm 15 9.6 6.7

13.5mm 73 47 33

Rear

Velocity ratio: 0.97

Bar diameter Wheel rate P1 Wheel rate P2 Wheel rate P36.5mm 4.4 2.9 2

9.0mm 16 10.5 7.4

13.5mm 79 51.3 36.3



Page 78 of 99

2.4. RIDE HEIGHT CHECK AND REFERENCES

Ride heights are critical for setting and changing the aerodynamic performance of the car.

It could be difficult to measure the ride heights directly, so we provide alternative references.

The example shown is the car in the design configuration with front ride height 25mm and rear ride height

55mm (at the wheel axis under the skid). Pitch angle in the design configuration is 0.554°. (3100 wheelbase)

Measuring front ride height:

[ 1 ] There are two flat areas provided on the top of the Monocoque aligned with the front wheel centre

line, at 576mm from the bottom of the car, (under side of skid (plank), 10mm below the “0” line).

Their distance from the ground is 601 – 576 = 25mm.

[ 2 ] A flat surface is about 216.4 mm behind the front wheel centre line (front of the skid). You can calculate

the ride height at the wheel as follows:

measured 27.1 – 216.4 * tan (pitch angle) = 25mm

Measuring rear ride height:

[ 1 ] There is a machined area provided on the gearbox, aligned with the rear wheel centre line, at 409mm

from car bottom, (under side of skid, (plank) 10mm below the “0” line).

Its distance from the ground is 464 – 509 = 55mm.

[ 2 ] Under the flat bottom, about 200mm ahead of the rear wheel axis, there is a flat surface (Rear of the

Skid Plate). You can measure the ground clearance and calculate the ride height at the rear centre line as

follows:

measured 53.1mm + 200 * tan ( pitch angle ) = 55 mm

For a more general procedure:

• Define your desired ride heights, front and rear ( F & R ) [mm]

• Calculate the pitch angle 57.29 * ( R – F ) / 3100.

• Calculate which value you should measure from the reference you choose.





Page 80 of 99

2.4.2. REAR QUICK LIFT JACK AND STARTER ARCHITECTURE REFERENCES.

References for the Starter motor spigot position are:



Page 81 of 99



Page 82 of 99

3. AERODYNAMICS

The Aerodynamic features of the car are as follows:

3.1. FRONT WING ASSEMBLY

The different Parts of the Front Wing Assembly are:

3.1.1. FRONT WING MAIN PLANE

The Front Wing Mainplane height on its bottom surface lowest point is:

To set these values, different Shims with thickness of 0.5, 1 and 2 mm are provided (nominal

distance is 2mm) for assembling it to the pylons:



Page 83 of 99

The angle of the Mainplane is fixed to 1.5 degs referenced to the 0 line.

3.1.2. FRONT WING FLAP

Flap angles can be adjusted with the Flap adjuster. One complete turn of the adjuster is one

degree in Flap angle.

The angle range of the Flap is from 15 degs to 27 degs.

A gurney can be fitted on the gurney to obtain an extra front downforce and balance, the

gurney is attached by means of double sided tape:





Page 85 of 99

3.2. MAIN BODY & UNDERWING

The different parts of the Main Body are as follows:

Reference dimensions of the Underwing are the following:



Page 86 of 99

3.3. BARGE BOARDS

The Barge Boards are fitted to the Monocoque and front side pods with their respective mounts.

Reference dimensions for the assembled barge boards are as follows:



Page 87 of 99

3.4. SIDEPODS

Lateral view of the Sidepods with the elements assembled is:

3.5. REAR WING ASSEMBLY

The different Parts of the Rear Wing Assembly are as shown:





Page 89 of 99

3.5.3. REAR WING MAIN-PLANE ADJUSTMENT RANGE

The Adjustment of the main-plane assembly is made using the five holes located in the End Plates:

- The adjustment goes from the lower incidence in P1 (top hole) to High incidence in P5 (lower hole).

- Low Downforce configuration is based in the range from P1 to P3 without gurney.

- High Downforce configuration is based in the range from P3 to P5 with the 10mm gurney.

- An Extra Downforce position can be achieved with the 20mm gurney in P5.



Page 90 of 99

3.6. AERODYNAMIC DATA

This data is to be used in conjunction with the VDP (Vehicle Dynamics Program) to aid set-up of

the A1GP-F01 car.

The information given in this report has been taken from data recorded from accurate modelling

of a 40% scale model in a closed section constant Reynolds number wind tunnel at Southampton

University. Track testing of the A1GP-F01 car has given a close track to wind tunnel correlation of

aerodynamic forces and radiator cooling information.

Notations

• All forces are quoted in Kilograms (Kg) @ 240kph assuming ISA conditions. • All dimensions are full scale in mm.

• Ride heights are quoted in mm from the ground to 10mm below and perpendicular to the

reference plane (“0” line) the under side of the plank at the front and rear axle centrelines.

• Radiator data is given as a delta percentage of velocity from the base line configuration.

• All front wing angles are quoted in degrees.

• All rear wing angles are quoted in hole positions.

Aero values are given @ the following ambient conditions;

Temperature = 15°C

Pressure = 1013 mbHumidity = 0% (dry air)

Aerodynamic forces are function of air temperature, pressure and humidity because they affect

the air density.

Typically,

Higher Air Temperature by 10° F ( 5.5 °C) reduces downforce and drag by 3.0 %

Higher Air Pressure by 1” Hg increases downforce and drag by 3.0%

Higher Air Relative Humidity by 50% increases downforce and drag by 0.5%

Drag: Total drag of the car including the contribution of front and rear wheel withTyre profiles.

Downforce: Total downforce generated by the car, excluding wheels.

Front Downforce: Downforce acting on the front tyre contact point.

Rear Downforce: Downforce acting on the rear tyre contact point.

Front Balance %: Downforce percentage spilt on front tyre contact point (=100*Lf /Lt)

Efficiency: Total Downforce divided by the total Drag L/D



Page 91 of 99

3.7. POLAR DIAGRAM OF THE CAR

For a Ride Height Reference in the Front of 15mm and in the Rear 28mm:

Polar Diagram

1080

1100

1120

1140

1160

1180

1200

1220

380 390 400 410 420 430 440

Drag (kg)

D o w n f o r c e ( k g )

1

98

76

4

5

32

Points FW FlapRW Fish

PlateRW

PositionRW

GurneyBalance Drag Downforce

angle angle mm % kg kg

Low Downforce 1 15.5 15 1 0 38.1 385 1102

2 16.5 17 2 0 38 393 1124

3 17.5 19 3 0 38 400 1140

4 18 15 1 10 37.9 400 1142

5 19.5 17 2 10 38.3 408 1161

6 20 19 3 10 38.1 415 11787 20.5 21 4 10 37.9 421 1189

High Downforce 8 21 23 5 10 38 429 1202

with 20mm Gurney 9 22.5 23 5 20 38.2 434 1213



Page 92 of 99

3.8. AERO MAPS

3.8.1. LOW DOWNFORCE AERO MAP

The Low Downforce Aero Map was obtained with the following settings:

Rear Wing

Position

Rear Wing

Gurney

Front Wing Flap

Angle

Front Wing Flap

GurneyCooling Brake Ducts

P1 No 15.5 No Only chimney D2 (Large)

TOTAL DOWNFORCE Max 1196 Min 1006 M-m 190 Avg 1099

0 5 10 15 20 25 30 35 40 45 50-1 1 08 3 1 11 8 1 14 6 1 17 1 1 19 1 1 21 0 1 22 3 1 23 5 1 24 5 1 25 1 1 25 6

2 1 05 0 1 08 8 1 11 8 1 14 3 1 16 5 1 18 4 1 19 7 1 21 0 1 21 9 1 22 6 1 23 6

5 1025 1060 1094 1117 1142 1159 1175 1 18 7 1 19 6 1 20 7 1 21 8

8 1008 1039 1069 1098 1120 1139 1153 1164 1177 1189 1200

11 9 95 1 02 5 1 05 3 1 08 0 1100 1119 1135 1147 1159 1170 1181

14 9 87 1 01 4 1 04 0 1 06 3 1 08 4 1101 1116 1129 1141 1152 1161

17 9 78 1 00 3 1 02 8 1 04 9 1 06 8 1 08 6 1100 1112 1122 1134 1143

20 968 993 1 01 6 1 03 7 10 55 1 071 1085 1097 1108 1116 1125

23 960 984 1 00 6 1 02 6 10 43 1 058 1071 1 08 2 1093 1102 1110

26 953 976 99 7 1 01 5 10 29 1 043 1056 1 06 9 1 08 0 10 87 1 095

29 949 971 98 8 1 00 2 10 16 1 030 1043 1 05 6 1 06 8 10 77 1 083

FRONT BALANCE Max 42 Min 33 M-m 9 Avg 38

0 5 10 15 20 25 30 35 40 45 50-1 39.87 40.52 40.98 41.48 42.06 42.67 43.36 44.02 44.61 45.07 45.41

2 38.54 39.39 40.02 40.52 41.10 41.67 42.32 42.97 43.49 43.91 44.32

5 37.33 38.18 38.97 39.58 40.06 40.66 41.37 41.92 42.41 42.90 43.35

8 36.32 37.11 37.84 38.54 39.13 39.70 40.35 40.92 41.46 41.98 42.41

11 35.36 36.16 36.89 37.57 38.21 38.82 39.40 40.01 40.59 41.06 41.53

14 34.50 35.25 35.98 36.66 37.32 37.97 38.59 39.15 39.72 40.23 40.70

17 33.63 34.37 35.09 35.79 36.50 37.17 37.83 38.43 38.96 39.51 39.91

20 32.76 33.50 34.23 34.99 35.74 36.47 37.15 37.78 38.33 38.81 39.24

23 31.88 32.63 33.44 34.29 35.10 35.82 36.44 37.03 37.83 38.32 38.69

26 30.98 31.86 32.80 33.68 34.43 35.14 35.76 36.51 37.16 37.74 38.25

29 30.23 31.29 32.26 33.08 33.80 34.46 35.13 35.90 36.58 37.24 37.78

TOTAL DRAG Max 391 Min 376 M-m 15 Avg 384

0 5 10 15 20 25 30 35 40 45 50-1 370 373 377 380 383 385 387 389 391 394 396

2 371 373 376 380 382 385 387 389 391 394 396

5 371 374 376 379 382 384 386 389 391 393 395

8 371 374 37 7 37 9 382 384 386 389 391 393 395

11 371 374 376 379 382 384 386 388 391 3 93 395

14 371 374 376 379 382 384 386 388 390 393 395

17 371 374 377 379 382 384 386 388 390 3 92 395

20 372 374 377 380 382 384 386 388 390 392 395

23 372 375 378 380 381 383 385 387 389 3 91 39426 373 376 378 379 381 383 385 387 389 391 393

29 375 376 377 379 381 383 385 386 388 390 392

EFFICIENCY M ax 3 .057 Mi n 2 .663 M-m 0.394 Avg 2.865

0 5 10 15 20 25 30 35 40 45 50-1 2.928 2.996 3.039 3.081 3.113 3.144 3.161 3.175 3.182 3.178 3.170

2 2.834 2.916 2.972 3.012 3.050 3.078 3.096 3.112 3.116 3.116 3.122

5 2.759 2.838 2.910 2.948 2.990 3.017 3.040 3.052 3.057 3.068 3.081

8 2.713 2.779 2.839 2.898 2.934 2.966 2.985 2.996 3.011 3.025 3.036

11 2.678 2.743 2.796 2.850 2.884 2.914 2.939 2.953 2.968 2.977 2.989

14 2.659 2.712 2.762 2.805 2.840 2.868 2.891 2.908 2.922 2.932 2.940

17 2.634 2.682 2.728 2.765 2.800 2.828 2.850 2.866 2.875 2.889 2.894

20 2.607 2.652 2.693 2.731 2.765 2.792 2.813 2.831 2.842 2.847 2.852

23 2.578 2.622 2.663 2.702 2.734 2.760 2.780 2.794 2.810 2.816 2.817

26 2.551 2.597 2.640 2.675 2.700 2.724 2.743 2.765 2.780 2.784 2.787

29 2.533 2.581 2.618 2.644 2.667 2.691 2.713 2.735 2.753 2.762 2.762

REAR DOWNFORCE Max 689 Min 664 M-m 25 Avg 680

0 5 10 15 20 25 30 35 40 45 50-1 651 665 676 685 690 694 693 691 689 687 685

2 645 659 671 680 686 691 691 690 689 688 688

5 642 655 667 675 685 688 689 689 689 689 690

8 642 654 664 675 682 687 688 688 689 690 691

11 643 655 664 674 680 684 688 688 689 689 691

14 646 657 666 674 679 683 685 687 688 688 689

17 649 658 667 673 679 682 684 685 685 686 687

20 651 660 668 674 678 680 682 683 683 683 684

23 654 663 669 674 677 679 681 682 679 680 680

26 658 665 670 673 675 677 678 679 679 677 676

29 662 667 669 670 672 675 677 677 678 676 674

REAR RIDE HEIGHT

F R O N T R I D E H E I G H T

REAR RIDE HEIGHT


REAR RIDE HEIGHT


REAR RIDE HEIGHT

F R

O N T R I D E H E I G H T

REAR RIDE HEIGHT


0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

900

950

1000

1050

1100

1150

1200

1250

REARFRONT

1200-1250

1150-1200

1100-1150

1050-1100

1000-1050

950-1000

900-950

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

34

36

38

40

42

44

REARFRONT

42.00-44.0040.00-42.00

38.00-40.00

36.00-38.00

34.00-36.00

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

376378380382384386388390392394396398400402404406

404-406

402-404

400-402

398-400

396-398

394-396

392-394

390-392

388-390

386-388

384-386

382-384

380-382

378-380

376-378

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

2.5

2.6

2.7

2.8

2.9

3.0

2.910-3.010

2.810-2.910

2.710-2.810

2.610-2.710

2.510-2.610

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

600

620

640

660

680

700

680-700

660-680

640-660

620-640

600-620

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

9009209409609801000102010401060108011001120114011601180120012201240126012801300

REARFRONT

1280-13001260-1280

1240-1260

1220-1240

1200-1220

1180-1200

1160-1180

1140-1160

1120-1140

1100-1120

1080-1100

1060-1080

1040-1060

1020-1040

1000-1020

980-1000

960-980

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

30.030.531.031.532.032.533.033.534.034.535.035.536.036.537.037.538.038.539.039.540.040.541.041.542.042.543.043.544.044.545.045.546.0

REARFRONT

45.50-46.00

45.00-45.50

44.50-45.00

44.00-44.50

43.50-44.00

43.00-43.50

42.50-43.00

42.00-42.50

41.50-42.00

41.00-41.50

40.50-41.00

40.00-40.50

39.50-40.00

39.00-39.50

38.50-39.00

38.00-38.50

37.50-38.00

0

1 0

2 0

3 0

4 0

5

0 - 1

5

1 1

1 7

2 3

2 9

368370372374376378380382384386388390392394396398

REARFRONT

396-398

394-396

392-394

390-392

388-390

386-388

384-386

382-384

380-382

378-380

376-378

374-376

372-374

370-372

368-370

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

2.5302.5502.5702.5902.6102.6302.6502.6702.6902.7102.7302.7502.7702.7902.8102.8302.8502.8702.8902.9102.9302.9502.9702.9903.0103.0303.0503.0703.0903.1103.1303.1503.1703.190

REARFRONT

3.170-3.190

3.150-3.170

3.130-3.150

3.110-3.130

3.090-3.110

3.070-3.090

3.050-3.070

3.030-3.050

3.010-3.030

2.990-3.010

2.970-2.990

2.950-2.970

2.930-2.950

2.910-2.930

2.890-2.910

2.870-2.890

2.850-2.870

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

640645650655660665670675680685690695700

REARFRONT

695-700

690-695

685-690

680-685

675-680

670-675

665-670

660-665

655-660

650-655

645-650

640-645



Page 93 of 99

3.8.2. HIGH DOWNFORCE AERO MAP

The High Downforce Aero Map was obtained with the following settings:

Rear Wing

Position

Rear Wing

Gurney

Front Wing Flap

Angle

Front Wing Flap

GurneyCooling Brake Ducts

P5 10mm 21 No Only chimney D2 (Large)

TOTAL DOWNFORCE Max 1291 Min 1119 M-m 172 Avg 1201

- 1 183 1 21 3 12 39 1 266 1 29 0 1 31 5 1 33 4 1 34 8 1 35 6 13 54 1 346

2 1 158 1 19 0 12 17 1 241 1 26 5 1 28 8 1 30 3 1 31 7 1 32 1 13 19 1 318

1137 1168 1197 1219 1244 1261 1279 1288 1291 1295 1300

1123 1150 1176 1202 1223 1239 1254 1261 1271 1278 1283

1111 1138 1161 1186 1205 1220 1234 1244 1254 1260 1268

1103 1127 1150 1171 1188 1204 1216 1228 1237 1246 1254

17 1 095 1 11 7 11 39 1 157 1 17 4 1 18 8 1199 1210 1220 1229 1240

1 086 1 10 8 11 28 1 146 1 16 1 1 17 2 1 18 3 1192 1202 1212 1223

1 079 1 10 1 11 19 1 134 1 14 6 1 15 7 1 16 7 1 17 7 1182 1192 1204

1 075 1 09 4 11 10 1 121 1 13 0 1 14 0 1 15 0 1 15 8 1 16 6 11 73 1 183

29 1 073 1 08 8 10 97 1 105 1 11 4 1 12 4 1 13 4 1 14 1 1 15 0 11 56 1 163

FRONT BALANCE Max 42 Min 34 M-m 8 Avg 38

- 39.80 40.21 40.58 41.06 41.77 42.59 43.53 44.25 44.71 44.75 44.52

2 38.84 39.41 39.89 40.31 40.91 41.64 42.33 43.01 43.27 43.30 43.38

37.88 38.47 39.04 39.59 39.97 40.61 41.41 41.78 42.00 42.30 42.61

36.99 37.58 38.13 38.69 39.18 39.68 40.30 40.68 41.15 41.54 41.87

36.11 36.71 37.28 37.80 38.37 38.89 39.41 39.92 40.40 40.76 41.19

35.26 35.84 36.43 36.98 37.54 38.09 38.63 39.17 39.64 40.16 40.59

17 34.41 35.01 35.59 36.18 36.75 37.31 37.85 38.40 38.94 39.45 39.95

33.58 34.19 34.80 35.40 35.98 36.55 37.11 37.64 38.19 38.73 39.28

32.77 33.40 34.04 34.65 35.24 35.80 36.33 36.87 37.47 38.02 38.57

32.00 32.67 33.32 33.92 34.48 35.04 35.58 36.14 36.69 37.28 37.85

31.30 32.00 32.62 33.19 33.74 34.27 34.81 35.38 35.94 36.51 37.10

TOTAL DRAG Max 437 Min 418 M-m 19 Avg 428

-1 415 418 421 424 428 431 435 438 441 442 443

2 415 418 421 424 427 431 434 437 439 440 442

5 415 417 420 423 426 430 433 435 437 439 442

414 417 420 423 426 429 432 434 437 439 441

414 417 420 423 426 428 431 434 436 438 441

413 416 419 422 425 428 431 433 436 438 440

17 413 416 419 422 425 428 430 433 435 438 440

412 415 419 422 424 427 430 432 435 437 439

412 415 418 421 424 427 429 432 434 436 439

412 415 418 421 424 426 429 431 434 436 438

413 416 418 421 423 426 428 431 433 436 438

EF FICIENCY Ma x 2.959 Min 2.6 74 M -m 0.285 Avg 2.807

-1 2.850 2.904 2.945 2.985 3.016 3.048 3.066 3.076 3.077 3.063 3.038

2 2.791 2.848 2.893 2.930 2.962 2.992 3.004 3.016 3.012 2.998 2.984

5 2.743 2.797 2.847 2.878 2.917 2.935 2.955 2.959 2.953 2.949 2.945

2.711 2.757 2.800 2.842 2.870 2.890 2.903 2.906 2.911 2.911 2.909

2.686 2.731 2.768 2.807 2.831 2.849 2.862 2.869 2.874 2.874 2.877

2.671 2.709 2.744 2.774 2.795 2.813 2.824 2.833 2.839 2.845 2.847

17 2.653 2.687 2.719 2.743 2.764 2.779 2.789 2.796 2.804 2.809 2.818

2.634 2.667 2.695 2.717 2.735 2.745 2.753 2.759 2.766 2.774 2.783

2.618 2.649 2.674 2.692 2.703 2.711 2.719 2.726 2.722 2.731 2.744

2.607 2.634 2.652 2.662 2.668 2.675 2.683 2.685 2.689 2.691 2.698

2.601 2.618 2.624 2.627 2.632 2.640 2.647 2.648 2.652 2.653 2.656

REAR DOWNFORCE Max 750 Min 728 M-m 22 Avg 742

-1 712 725 736 746 751 755 753 752 750 748 747

2 708 721 731 741 747 752 751 750 749 748 746

5 707 719 730 736 747 749 750 750 749 747 746

707 718 728 737 744 748 748 748 748 747 746

710 720 728 738 742 746 748 748 747 746 746

14 714 723 731 738 742 745 746 747 747 746 745

17 718 726 734 739 743 745 745 745 745 744 745

20 721 729 736 740 743 744 744 743 743 743 743

725 733 738 741 742 743 743 743 739 739 740

731 737 740 741 741 741 741 740 738 736 735

737 740 739 738 738 739 739 738 737 734 731

REAR RIDE HEIGHT


REAR RIDE HEIGHT





0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

900

950

1000

1050

1100

1150

1200

1250

REARFRONT

1200-1250

1150-1200

1100-1150

1050-1100

1000-1050

950-1000

900-950

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

34

36

38

40

42

44

REARFRONT

42.00-44.00

40.00-42.00

38.00-40.00

36.00-38.00

34.00-36.00

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

376378380382384386388390392394396398400402404406

404-406

402-404

400-402

398-400

396-398

394-396

392-394

390-392

388-390

386-388

384-386

382-384

380-382

378-380

376-378

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

2.5

2.6

2.7

2.8

2.9

3.0

2.910-3.010

2.810-2.910

2.710-2.810

2.610-2.710

2.510-2.610

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

600

620

640

660

680

700

680-700

660-680

640-660

620-640

600-620

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

105010701090111011301150117011901210123012501270129013101330135013701390

REARFRONT

1370-1390

1350-1370

1330-1350

1310-1330

1290-1310

1270-1290

1250-1270

1230-1250

1210-1230

1190-1210

1170-1190

1150-1170

1130-1150

1110-1130

1090-1110

1070-1090

1050-1070

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

31.031.532.032.533.033.534.034.535.035.536.036.537.037.538.038.539.039.540.040.541.041.542.042.543.043.544.044.545.0

REARFRONT

44.50-45.00

44.00-44.50

43.50-44.00

43.00-43.50

42.50-43.00

42.00-42.50

41.50-42.00

41.00-41.50

40.50-41.00

40.00-40.50

39.50-40.00

39.00-39.50

38.50-39.00

38.00-38.50

37.50-38.00

37.00-37.50

36.50-37.00

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

412414416418420422424426428430432434436438440442444

REARFRONT

442-444

440-442

438-440

436-438

434-436

432-434

430-432

428-430

426-428

424-426

422-424

420-422

418-420

416-418414-416

412-414

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

2.6002.6202.6402.6602.6802.7002.7202.7402.7602.7802.8002.8202.8402.8602.8802.9002.9202.9402.9602.9803.0003.0203.0403.0603.080

REARFRONT

3.060-3.080

3.040-3.060

3.020-3.040

3.000-3.020

2.980-3.000

2.960-2.980

2.940-2.960

2.920-2.940

2.900-2.920

2.880-2.900

2.860-2.880

2.840-2.860

2.820-2.840

2.800-2.820

2.780-2.800

2.760-2.780

2.740-2.760

0

1 0

2 0

3 0

4 0

5 0

- 1

5

1 1

1 7

2 3

2 9

700705710715720725730735740745750755760

REARFRONT

755-760

750-755

745-750

740-745

735-740

730-735

725-730

720-725

715-720

710-715

705-710

700-705



Page 94 of 99

3.9. COOLING INLET BLANKING

Polar Diagram of Cooling

RH REFERENCE 15/28 FW set at 21 degs. No Gurney. Large Brake ducts (D2).

RW in P5 with 10mm FS Gurney

Tot Drag Front lift Rear Lift Balance

kg kg kg %

Std (only chimney) Ref 429 454 748 37.8Louvers Opened 428 454 739 38.1

∆Vrad/V0 Tot Drag Front lift Rear Lift Balance

% kg kg kg %

Std (only chimney) Ref Ref 429 454 748 37.8

Louvers Opened +13.7 -1 0 -9 0.3

3.10. BRAKE DUCTS SELECTION

Polar Diagram of Brake Ducts

RH REFERENCE 15/28 FW set at 21 degs. No Gurney. Cooling only chimney.

RW in P5 with 10mm FS Gurney

Tot Drag Front lift Rear Lift Balance

kg kg kg %

Std (D2) Large Ref 429 453 746 37.8

Small ducts (D1) 428 454 750 37.7



Page 95 of 99

3.11. POLAR DIAGRAM OF THE MAIN ADJUSTABLE DEVICES

3.11.1. FRONT FLAP

RW Position P5. Gurney 10mm FS.

Large Brake ducts (D2). Cooling only chimney.

FW Flap Tot Drag Front lift Rear Lift Balance

angle kg kg kg %

Ref 15 427 412 765 3518 428 430 756 36.3

21 429 452 750 37.6

24 430 474 744 38.9

27 431 490 731 40.1

Gurney 27 431 499 726 40.8

FW Flap Tot Drag Front lift Rear Lift Balance

angle kg kg kg %

Ref 15 427 412 765 35

18 1 18 -9 1.3

21 2 40 -15 2.6

24 3 62 -21 3.927 4 78 -34 5.1

Gurney 27 4 87 -39 5.8

34

35

36

37

38

39

40

41

14 17 20 23 26 29

Flap Angle

GurneyP



Page 96 of 99

3.11.2. REAR BI-PLANE

FW set at 21 degs. No Gurney.

Large Brake ducts (D2). Cooling only chimney.

HIGH DF RW RW Tot Drag Front lift Rear Lift Balance

angle position kg kg kg %

20mm Gurney Max HD 23 5 432 452 754 37.6

10mm Gurney Ref 23 5 429 453 750 37.7

10mm Gurney 21 4 422 454 740 3810mm Gurney 19 3 415 455 728 38.5

10mm Gurney 17 2 409 454 714 38.9

10mm Gurney 15 1 402 456 702 39.4

HIGH DF RW RW Tot Drag Front lift Rear Lift Balance


20mm Gurney Max HD 23 5 3 -1 4 -0.1

10mm Gurney Ref 23 5 429 453 750 37.7

10mm Gurney 21 4 -7 1 -10 0.3

10mm Gurney 19 3 -14 2 -22 0.8

10mm Gurney 17 2 -20 1 -36 1.2

10mm Gurney 15 1 -27 3 -48 1.7

LOW DF RW RW Tot Drag Front lift Rear Lift Balance


No Gurney Ref 23 5 415 457 726 38.6

No Gurney 21 4 408 457 714 39

No Gurney 19 3 401 457 701 39.5

No Gurney 17 2 395 459 688 40

No Gurney 15 1 386 459 672 40.5

LOW DF RW RW Tot Drag Front lift Rear Lift Balance


No Gurney Ref 23 5 415 457 726 38.6

No Gurney 21 4 -7 0 -12 0.4

No Gurney 19 3 -14 0 -25 0.9

No Gurney 17 2 -20 2 -38 1.4

No Gurney 15 1 -29 2 -54 1.9

1100

1120

1140

1160

1180

1200

1220

380 390 400 410 420 430 440

Drag

HD

LD20mm Gurney



Page 97 of 99

4. CHASSIS ADJUSTMENTS

4.1. STEERING ASSEMBLY:

The steering wheel, using the column assembly can be adjusted to three different positions depending on

the spacer used.

4.2. NOSE BOX MOUNT

Dimensions for nose box quick release

4.3. EXTRACTABLE SEAT

In order to keep a high level of safety for the driver, the following

4.3.1. CARBON SHELL AND LEG STRAP POSITION

In case of a serious crash, the driver should be extracted in the extractable seat with no harm and no

difficulties. In order to achieve that, the following instructions have to be followed:



Page 98 of 99

- The seat must to be correctly fitted in the carbon shell.

- The holes for the leg straps in the carbon shell and those in the seat must to be aligned.

- The leg straps have to exit in front of the driver’s crotch.

- Check that when the driver is in the car, he is not sitting on the leg straps.

OK INCORRECT

The hole made in the driver seat to pass the lower seat belts must be large enough.

4.3.2. CARBON SHELL

In order to keep the extractable seat characteristics, NO MODIFICATION IS ALLOWED ON THE CARBON SHELL.



4.3.3. QUICK RELEASE BLACK SOCKET POSITION

The black sockets must be maintained in position on the edge of the carbon shell in order to allow quick

fitting of the extraction tools.

4.3.4. SIDE BELTS

It is recommended that the side belts of the carbon shell are attached together to avoid them being

trapped between the shell and the chassis.

4.3.5. DRIVER SEAT DIMENSION

Driver seat must not exceed the carbon shell length and width.

Documents

A1GP Car Manual Issue 1 3