HFS-01

Dimensions
Suspension
Powetrain
Frame and Ergonomics

Overall Length [mm]

1440

Overall Width [mm]

1440

Overall height [mm]

1315

Wheelbase [mm]

1600

Track width [mm]

1260

Weight  with 68 kg driver [kg]:

353

 Front

Rear

Suspension Type

Double unequal length A-Arm, direct acting spring and damper, active damping

Double unequal length A-Arm, direct acting spring and damper, active damping

Design ride height (chassis to ground) [mm]

84

75

Center of gravity design height [mm]

250

 

Suspension design travel - jounce [mm]

35

35

Suspension design travel rebound [mm]

35

35

Wheel rate (chassis to wheel center) [N/mm]

22.0

22.0

Roll rate (chassis to wheel center) [degrees/g]

1.47

 

Static toe [degrees]

1 degrees toe in

 

Static camber [degrees]

-1 deg

 -1 deg

Front caster angle [degrees]

3 deg

 

Front kingpin inclination [degrees]

5 deg

 

Kingpin offset [mm]

85.9

 

Anti dive / Anti lift [%]

0

0

Roll center position static (above ground) [mm]

17.5

38.3

Roll center position at 1g lateral acceleration [mm]

9.52mm above ground, 1.29mm towards unladen side

25.52mm above ground, 1.53mm towards unladen side

Other significant suspension parts

Active dampers

 

Wheels

6x10 ET-5, -5mm offset, 1pc, Al Rim

6x10 ET-5, -5mm offset, 1pc, Al Rim

Manufacture/Model

2004 Yamaha YZF-R6 4 cylinder

Bore [mm]

65.5

Stroke [mm]

44.5

Cylinders

4

Displacement [cc]

599.8

Compression ratio

12.4:1

Induction

N/A

Throttle body/mechanism

40mm, butter-fly throttle actuation

Max power design RPM

12500

Max torque design RPM

12000

Fuel system (manf'r, and type)

Mikuni Fuel injection, Batch fire

Fuel system sensors (used in

fuel mapping)

Air Temp, Coolant Temp, Throttle Position, Crank Position

Fuel pressure [bar]

5

Ignition system

OEM Quad-coil, Wasted spark, Digital Electric w/ 2 KMS Ignition Drivers

Ignition timing

3-D map, RPM and Throttle position

Oiling system (wet/dry sump, mods)

Chain driven wet sump / 1 pressure pump

Coolant system and radiator location

Side mounted radiator with 2 thermostatic controlled electric fans

Frame construction

Full Spaceframe

Material

S235JR steel round tubing 25x2.5 [mm]

Joining method and material

MIG Welding

Torsional stiffness [Nm/deg]

6200 Nm/deg

Torsional stiffness validation method

FEA

Bare frame weight with brackets and paint [kg]

57.5

Crush zone length [mm]

256

Crush zone energy capacity [Joules]

7350

Driver size Adjustments

Fixed seat, steering wheel and pedals. Custom seats and headrests for each driver

Shift actuator (type, location)

Manually actuated lever, left side cockpit mount

Clutch actuator (type, location)

Manually actuated lever attached to the shift actuator, left side cockpit mount

Electronics
Drivetrain
Steering system and Brake System/Hub & Axle

Driver aids

N/A

Data logging

Built-in ECU 38 channel 4Mb data logging

Telemetry system

N/A

Electric auxilliaries (fan, fuelpump, waterpump)

Electric fuel pump, 2 electric fans

CAN bus

Highspeed CAN 2.0 B

Battery

Lead Acid

Other significant electronic parts

Active Suspension

Drive type

530 O-ring Chain

Differential type

Quaife Limited Slip Chain Drive Differential

Final drive ratio

2.81

Vehicle speed @ max power rpm:

1st gear [km/h]

67

2nd gear [km/h]

97

3nd gear [km/h]

121

4nd gear [km/h]

142

5nd gear [km/h]

187

6nd gear [km/h]

206

Half shaft size and material

OEM 2005 Ford Fiesta driveshafts. 31mm OD 22mm ID, steel

Joint type

Ford Fiesta Rzeppa Joints - outer. Ford Fiesta Tripod Joints - inner

  Front

Rear

Steering ratio (steering wheel/outer wheel) [deg/deg]

4.5

N/A

Steering arm length [mm]

60

N/A

Rotors (incl. outer and inner diameter [mm] of friction surface)

Floating, 220mm outer diam, 160mm inner diam 4mm thick, vented

Floating, 310mm outer diam, xxxmm inner diam, 5mm thick, vented

Master cylinders (incl. diameters [mm])

Girling 5/8" bore front and rear master cylinders with adjustable bias bar

Calipers (incl. diameters [mm])

AP Racing CP4227-2SO. 25.4mm piston diam, 4 piston

2008 Yamaha YZF-R1 front caliper, 24mm piston diam, 6 piston

Hub bearings

SKF VKBA 3531 Ball Bearings

SKF VKBA 3531 Ball Bearings

ABS

N/A

HFS-02

Dimensions
Suspension
Powetrain
Frame and Ergonomics

Overall Length [mm]

2757

Overall Width [mm]

1456

Overall height [mm]

1047

Wheelbase [mm]

1550

Track width [mm]

1250

Weight  with 68 kg driver [kg]:

268

  Front

Rear

Suspension Type

Double unequal length A-Arm. Direct acting spring and damper

Double unequal length A-Arm. Direct acting spring and damper

Design ride height (chassis to ground) [mm]

70

70

Center of gravity design height [mm]

275

 

Suspension design travel - jounce [mm]

30

30

Suspension design travel rebound [mm]

30

30

Wheel rate (chassis to wheel center) [N/mm]

17.3; non adjustable

16.1; non adjustable

Roll rate (chassis to wheel center) [degrees/g]

1.57

 

Static toe [degrees]

1 degrees toe in

0 degrees

Static camber [degrees]

-1 deg

-1 deg

Front caster angle [degrees]

3.6 deg

 

Front kingpin inclination [degrees]

5.1 deg

 

Kingpin offset [mm]

62.29

 

Anti dive / Anti lift [%]

9.2% / 0%

0% / 5%

Roll center position static (above ground) [mm]

25

28

Roll center position at 1g lateral acceleration [mm]

29mm above ground, 120.56mm toward unladen side

35mm above ground, 125mm towards unladen side

Other significant suspension parts

Active dampers

Active dampers

Wheels

6x10 ET-5, -5mm offset, 1pc, Al Rim

6x10 ET-5, -5mm offset, 1pc, Al Rim

Manufacture/Model

2008 KTM LC4 690 one-cylinder stock

Bore [mm]

102

Stroke [mm]

80

Cylinders

1

Displacement [cc]

653.7

Compression ratio

11.8:1

Induction

N/A

Throttle body/mechanism

40mm, butterfly-valve, cable activated

Max power design RPM

7500

Max torque design RPM

6500

Fuel system (manf'r, and type)

2010 yamaha R1 original fuelpump, single Keihin injector(original KTM)

Fuel system sensors (used in

fuel mapping)

Air Temp, Coolant Temp, Throttle Pos, Crank pos(VR), Wideband Bosch lsu 4.2

Fuel pressure [bar]

3.12

Ignition system

Single coil

Ignition timing

3-D map, RPM and Throttle position, 25 deg BTDC max advance

Oiling system (wet/dry sump, mods)

Semi dry sump, 2 oil pumps

Coolant system and radiator location

Single original KTM radiator in the left sidepod, single ECU activated fan

Frame construction

Full Tubular Space Frame

Material

25x2.5mm S235, 25x1.6mm DP600, 25x1.2mm DC01, 14x1.5mm DP600

Joining method and material

TIG Welding

Torsional stiffness [Nm/deg]

2000 Nm/deg

Torsional stiffness validation method

FEA

Bare frame weight with brackets and paint [kg]

35

Crush zone length [mm]

256

Crush zone energy capacity [Joules]

7350

Driver size Adjustments

Fixed seat, steering wheel and pedals.Custom seats and headrests for each driver

Shift actuator (type, location)

Pneumatic cylinder actuated, paddles on steering wheel

Clutch actuator (type, location)

Hand Controlled, Hydraulicly actuated, Behind Steering Wheel

Electronics
Drivetrain
Steering system and Brake System/Hub & Axle

Driver aids

Not Applicable

Data logging

Built-in ECU 38 channel 4Mb data logging

Telemetry system

N/A

Electric auxilliaries (fan, fuelpump, waterpump)

Electric radiator fan, electric fuelpump

CAN bus

Highspeed CAN 2.0 B

Battery

LiFePo4

Other significant electronic parts

N/A

Drive type

Chain (size 520) and Sprockets

Differential type

Limited slip: Quaife QDF7ZR helical differential

Final drive ratio

2.78

Vehicle speed @ max power rpm:

1st gear [km/h]

45.5

2nd gear [km/h]

65.04

3nd gear [km/h]

85.57

4nd gear [km/h]

103.47

5nd gear [km/h]

118.56

6nd gear [km/h]

130.82

Half shaft size and material

23mm OD solid GKN shafts

Joint type

Tripod left/right

  Front

Rear

Steering ratio (steering wheel/outer wheel) [deg/deg]

3.92

N/A

Steering arm length [mm]

80

N/A

Rotors (incl. outer and inner diameter [mm] of friction surface)

Floating, Hub mounted, 160mm outer diam, 108mm inner diam

Floating, Hub mounted, 160mm outer diam, 108mm inner diam

Master cylinders (incl. diameters [mm])

QSP, 15.875mm bore front and rear, with adjustable bias bar

Calipers (incl. diameters [mm])

ISR, Dual piston, fixed, 25mm

ISR, Dual piston, fixed, 25mm

Hub bearings

Tapered roller bearings, SKF 32004 X_Q

Tapered roller bearings, SKF LM 29749_711

ABS

N/A