SPR19 – Holly
Ideal centre of gravity
- Water-cooled KTM 690 single cylinder with 654 cm³ displacement
- 3D printed intake system with intake manifold injection
- Engine control: MoTec M400
- Electromechanical circuit with ignition interruption
- Full sequential injection/ignition
- Wet sump lubrication
- 3D printed fuel tank
- Weight optimization
- Electromechanical clutch
- Electronic throttle valve with variable map and auto-intermediate gas
- Power transmission via chain
- Steel drive shafts
- Differential: Drexler Formula Student
- Adapted translation
- V: Direct Pushrod System with Öhlins damper (variable adjustable)
- H: Pushrod with Öhlins damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Optimized adjustment range
- Improved access
- Tyre manufacturer: Hoosier
- Rims: OZ Racing Centerlock
- Steering: Self-developed steering gear
- CAN bus
- Freely configurable HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- WLAN live telemetry and data logging
- Ergonomically optimized operation
- Hybrid Monocoque
- Structure and weight optimized
- Rear frame
- Material: Rust-proof steel
- Fire Wall: 1mm aluminium
- Crashbox: Aluminium honeycomb
- New developed aerodynamics package
- Lap time gain: Approx. 15
- front & rear wing
- Side boxes improve flow to the radiators
- Output: 360N at 60km/h
- More contact pressure through diffuser
Performance data
SPR18 – Mony
The light-weight
- Water-cooled KTM 690 single cylinder with 654 cm³ displacement
- 3D printed intake system with intake manifold injection
- Engine control: MoTec M400
- Electropneumatic circuit with ignition interruption
- Full sequential injection/ignition
- Wet sump lubrication
- Aluminium fuel tank
- Weight optimization
- Electropneumatic clutch
- Electronic throttle valve with variable map and auto-intermediate gas
- Power transmission via chain
- Steel drive shafts
- Differential: Drexler Formula Student
- Adapted translation
- V: Pushrod Monoshock System with Öhlins shock absorber (variable adjustable)
- H: Pushrod with KW-Formula Student damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Optimized adjustment range
- Improved access
- Tyre manufacturer: Hoosier
- Rims: OZ Racing Centerlock
- Steering: Self-developed steering gear
- CAN bus
- Freely configurable HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- XBee live telemetry and data logging
- Self-developed traction control
- Ergonomically optimized operation
- Hybrid Monocoque
- Structure and weight optimized
- Rear frame
- Material: S235JR
- Fire Wall: 1mm aluminium
- Crashbox: Aluminium honeycomb
- Further developed aerodynamics package
- Lap time gain: Approx. 15
- front & rear wing
- Underbody
- Output: 600N at 60km/h
- More contact pressure through side boxes
Performance data
SPR17 – Symphony
The game changer – new concept
- Water-cooled KTM 690 single cylinder with 654 cm³ displacement
- 3D printed intake system with intake manifold injection
- Engine control: MoTec M400
- Electronic circuit with ignition interruption
- Full sequential injection/ignition
- Wet sump lubrication
- Aluminium fuel tank
- Weight optimization
- Electronic clutch
- Electronic throttle valve with variable map and auto-intermediate gas
- Power transmission via chain
- Steel drive shafts
- Differential: Drexler Formula Student
- Adapted translation
- V: Pullrod with KW-Formula Student damper (variable adjustable)
- H: Pushrod with KW-Formula Student damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Optimized adjustment range
- Improved access
- Tyre manufacturer: Hoosier
- Rims: OZ Racing Centerlock
- Steering: Self-developed steering gear
- CAN bus
- Freely configurable HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- XBee live telemetry and data logging
- Self-developed traction control
- Ergonomically optimized operation
- Hybrid Monocoque
- Aerodynamically and structurally optimized
- Rear frame
- Material: S235JR
- Fire Wall: 1mm aluminium
- Crashbox: Aluminium honeycomb
- Further developed aerodynamics package
- Lap time gain: Approx. 15
- front & rear wing
- Underbody
- Output: 400N at 60km/h
- DRS (Drag Reduction System) in the rear wing
- More contact pressure through side boxes
- Aerodynamic stability during cornering
Performance data
SPR16 – Melody
Back to the combustion car
- Water-cooled in-line four-cylinder Suzuki GSX 600 R K3 with 599 cm³ displacement
- CFK/RP intake tract with intake manifold injection
- Compression ratio: 12.5 : 1
- Engine control: MoTec M400
- Electronic circuit with ignition interruption
- Optimized control times
- Fully sequential injection/ignition
- Adapted oil pan
- Aluminium fuel tank (5.5l) with integrated pump
- Weight optimization
- Power transmission via chain
- CFRP drive shafts
- Differential: Drexler Formula Student
- Adapted translation
- V: Push-Rod with air spring damper (variable adjustable)
- H: Push-Rod with air spring damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Optimized adjustment range
- Improved access
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: Linear Formula Seven steering gear
- CAN bus
- HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- LV: 12V
- WLAN live telemetry and data logging
- Traction control
- Structure-analysed, MIG/MAG-welded tubular grid frame
- Material: E235/E355
- Fire Wall: 0,5mm aluminium
- Crash box: Aluminium honeycomb
- Aerodynamically optimized CFRP outer skin
- Further developed aerodynamics package
- Lap time gain: Approx. 12
- front & rear wing
- Underbody
- Output: 500N at 60km/h
Performance data
SPR15e – Diana
The 5th generation of electric cars
- 1x YASA-750 brushless DC engine
- Control: Sevcon Gen4.Size8 and dSpace MAB II
- LiPo battery (90S2P, system developed in-house, 6.6 kWh, 46kg)
- Completely self-developed BMS (slave boards in HV battery, master implemented in MAB)
- Oil cooling with OptiCool fluid (all components in series)
- Power transmission via tripods
- CFRP drive shafts
- Differential: Drexler Formula Student
- Planetary gear (1.56 : 1)
- V: Push-Rod with air spring damper (variable adjustable)
- H: Push-Rod with air spring damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: Linear Formula Seven steering gear
- CAN bus
- Freely configurable HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- WLAN/GSM live telemetry
- Self-developed traction control
- Structure-analysed, MIG/MAG-welded tubular grid frame
- Material: E235/E355
- Fire Wall: 0.5mm GRP laminated with UL94V0 resin
- Crash box: Aluminium honeycomb
- Aerodynamically optimized CFK-GFK outer skin
- Newly developed aerodynamics package
- Lap time gain: Approx. 8%.
- front & rear wing
- Underbody
- Aerodynamic efficiency: 2.1
- Automatic DRS (Drag Reduction System) in the rear wing
- More contact pressure through side boxes
Performance data
SPR14e – Maja
Form follows function
- 1x YASA-750 brushless DC engine
- Control: Sevcon Gen4.Size8 and dSpace MAB II
- LiPo battery (96S2P, system developed in-house, 5.7 kWh, 46kg)
- Completely self-developed BMS (slave boards in HV battery, master implemented in MAB)
- Oil cooling with OptiCool fluid (all components in series)
- Power transmission via tripods
- CFRP drive shafts
- Differential: Drexler Formula Student
- Planetary gear (1.44 : 1)
- V: Push-Rod with 4-way damper (variable adjustable) with T-torsional stabilizer
- H: Push-Rod with 4-way damper (variable adjustable), damper directly connected
- Suspension: Double triangular wishbone made of CFK
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: PSS steering gear with progressive steering angle characteristic
- CAN bus
- Freely configurable HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- WLAN/GSM Live Telemetry
- Structure-analysed, MIG/MAG-welded tubular grid frame
- Material: E235/E355
- Fire Wall: 0.5mm GRP laminated with UL94V0 resin
- Crash box: Impaxx 700
- Aramid outer skin
Performance data
SPR13e – Gracy
Design goal: Reliability
- 1x YASA-750 brushless DC engine
- Control: Sevcon Gen4.Size8 and dSpace MAB II
- LiFePo battery (96S1P, system developed in-house)
- Completely self-developed BMS (slave boards in HV battery, master implemented in MAB)
- Oil cooling with OptiCool fluid (all components in series)
- Power transmission via tripods
- Differential: Drexler Formula Student
- Planetary gear (1.44 : 1)
- V: Pull-Rod with 4-way damper (variable adjustable)
- H: Push-Rod with 4-way damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: PSS steering gear with progressive steering angle characteristic
- CAN bus
- HMI (Human Machine Interface)
- Optimized cable routes (automotive standard)
- Exchangeable wiring harness
- LV: 12V
- Structure-analysed, MIG/MAG-welded tubular grid frame
- Material: E235/E355
- Fire Wall: 0.5mm GRP laminated with UL94V0 resin
- Crash box: Impaxx 700 covered with CFK
- GRP outer skin
- First aerodynamics package
- Front & rear wing
- Underbody
- Output: 240N at 60km/h
- DRS (Drag Reduction System) in the rear wing
Performance data
SPR12e – Elisa
The 2nd generation electric car
- 2x YASA-750 brushless DC engines
- Control: dSpace MAB II + embedded PC
- LiPo battery (84S1P, system developed in-house)
- Completely self-developed BMS (slave boards in HV battery, master implemented in MAB)
- Oil cooling with OptiCool fluid (all components in series)
- Fast, ergonomic changing system of the LiPo battery
- Power transmission via tripods
- Direct drive via CFRP drive shafts
- Differential: Electronic (Torque Vectoring)
- V: Push-Rod with 4-way damper (variable adjustable)
- H: Pull-Rod with 4-way damper (variable adjustable)
- Suspension: Double triangular wishbone made of CFK
- Wheel carrier: AL-7075
- Mass distribution (VA/HA) = 106 kg : 166 kg
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: PSS steering gear with progressive steering angle characteristic
- CAN bus
- HMI (Human Machine Interface)
- Optimized pipeline routes
- Exchangeable wiring harness
- LV: 12V via DC/DC converter
- Structure-analysed, MIG/MAG-welded tubular grid frame
- Torsional stiffness: 1420 Nm/deg
- Weight: 34,4 kg
- Material: E355
- Fire Wall: 0.5mm aluminium with UL94V0 insulation foil
- Crash box: Impaxx 700 covered with CFK
- Carbon outer skin
- Driver adjustments up to 100 mm through pedals, seat & steering wheel
Performance data
SPR11e – Tessie
The first electric car
- 2x Sineton brushless DC motors
- Control: Actua regulator box
- Li(NiCoMn)O2 batteries
- Power transmission via chain
- Differential: Electronic (Torque Vectoring)
- Suspension: Stainless steel double wishbones
- Damper linkage via pushrods
- All parameters adjustable
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: PSS steering gear with progressive steering angle characteristic
- Wire harness
- LV: 12V
- FE-analysed, TIG-welded tubular grid frame
- Weight: 42,5 kg
- Material: E355
- Fire Wall: Aluminium
- Carbon outer skin
Performance data
SPR10 – Lucy
Lightweight frame
- Water-cooled in-line four-cylinder Suzuki GSX 600 R K3 with 599 cm³ displacement
- CFK/RP intake tract with intake manifold injection
- Compression ratio: 12.5 : 1
- Engine control: Motec M400
- Electronic circuit with ignition interruption
- Optimized control times
- Fully sequential injection/ignition
- Power transmission via chain
- Differential: Drexler Formula Student 2010
- Slat lock
- Suspension: Stainless steel double wishbones
- Damper linkage via pushrods
- All parameters adjustable
- Tyre manufacturer: Hoosier
- Rims: OZ Racing
- Steering: PSS steering gear with progressive steering angle characteristic
- Wire harness
- LV: 12V
- FE-analysed, TIG-welded tubular grid frame
- Weight: 29,5 kg
- Material: E355
- Fire Wall: Aluminium
- Carbon outer skin
Performance data
SPR09
Weight optimization
- Water-cooled in-line four-cylinder Suzuki GSX 600 R K3 with 599 cm³ displacement
- CFK/RP intake tract with intake manifold injection
- Compression ratio: 12.5 : 1
- Engine control: Trijekt
- Electronic circuit with ignition interruption
- Optimized control times
- Fully sequential injection/ignition
- Power transmission via chain
- Differential: Drexler Formula Student 2008
- Slat lock
- Suspension: Carbon double wishbone
- Damper linkage via pullrods
- All parameters adjustable
- Tyre manufacturer: Dunlop
- Rims: Two-piece own construction
- Steering: PSS steering gear with progressive steering angle characteristic
- Wire harness
- LV: 12V
- FE-analysed, TIG-welded tubular grid frame
- Weight: 31 kg
- Material: 15CDV6
- Fire Wall: Aluminium
- Carbon outer skin
Performance data
SPR08
The first car
- Water-cooled in-line four-cylinder Suzuki GSX 600 R K3 with 599 cm³ displacement
- CFK intake tract with intake manifold injection (4 near, 4 far)
- Compression ratio: 13.5 : 1
- Engine control: Trijekt
- Electromagnetic circuit with ignition interruption
- Power transmission via chain
- Differential: Drexler Formula Student 2008
- Slat lock
- Suspension: Double wishbone
- Damper linkage via pullrods
- All parameters adjustable
- Tyre manufacturer: Dunlop
- Rims: BBS 7×13
- ET 23,3, three parts
- Wire harness
- LV: 12V
- FE-analysed, TIG-welded tubular grid frame
- Weight: 40 kg
- Material: E235 and S350
- Fire Wall: Aluminium
- Aluminium outer skin
Performance data