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WFR26E:
Thirteen Subsystems, One Car

A Formula SAE car is not a set of parts bolted together:
every decision in one subsystem shows up as a constraint in the others.

420 V
peak pack voltage,
five modules in series
CL 1.8
lift coefficient,
Ford's DTF Wind Tunnel
Emrax 228 MV
single motor,
driving the rear wheels

Subsystem 01 of 13

Aerodynamics

A multi-element package of nosecone, front wing, side wings, rear wing and diffuser, built in-house with carbon fibre/glass composites and Rohacell foam core internal structures.

Lift coefficient
CL 1.8
Drag coefficient
CD 0.77
Aero balance
CoP 53% to the front
Explore aerodynamics

Subsystem 02 of 13

Battery Pack

420V battery with five modules equipped with custom printed circuit boards enclosed in a composites case.

Configuration
100s6p
Peak voltage
420 V DC
Max fuse rating
120 A
Explore battery pack

Subsystem 03 of 13

Brakes & Pedals

Focused on precision and reliability, all components selected to ensure reliable stopping power and optimal driver control.

Calipers
4-piston front, 2-piston rear
Master cylinders
Tilton 78-700
Pedal ratio
3.67
Explore brakes & pedals

Subsystem 04 of 13

Business Development

Budgeting, sponsorship, marketing, cost reports and project management, driven by Engineering and Ivey Business students working side by side. Business Development also prepares the cost and business case events at competition.

Business Logic Case
Project Management Reports
Reach
100,000+ digital impressions per month
Explore business development

Subsystem 05 of 13

Chassis

A full carbon fibre monocoque with a planar design, infused and cured in a single stage. It carries every other subsystem and sets the suspension and drivetrain geometry; for WFR26-E it was refined for rules compliance, rear stiffness and a faster build.

Construction
Full CFRP monocoque
Torsional stiffness
3300 N·m/deg measured
Front roll hoop
Interlaminar
Explore chassis

Subsystem 06 of 13

Cooling

One shared coolant loop keeps the motor and inverter inside their temperature limits over a full endurance run. For WFR26-E the system was overhauled: every component was bench tested for pressure drop and a larger pump was fitted.

Architecture
Single shared loop
Pump
Koolance PMP-800
Flow target
8 to 12 L/min
Explore cooling

Subsystem 07 of 13

Data Acquisition

Data Acquisition works with every technical subsystem to collect, store and analyse vehicle data. For WFR26-E it moved telemetry from LTE to a 5 GHz radio link and built tools so anyone on the team can use the data.

Telemetry link
5 GHz radio
Live view latency
Under 100 ms
In-car computer
Raspberry Pi
Explore data acquisition

Subsystem 08 of 13

Drivetrain

A single Emrax 228 MV motor and a Cascadia Motion CM200DZ inverter drive the rear wheels through the team's custom double-reduction gearbox and a Drexler limited slip differential. For WFR26-E the gearbox carried over, with its worn gears remanufactured.

Motor
Emrax 228 MV
Final drive ratio
4.53
Differential
Drexler limited slip
Explore drivetrain

Subsystem 09 of 13

Ergonomics

The driver interface: the carbon seat, padding, headrest and cockpit layout. For WFR26-E the cockpit was sized from the 5th percentile female to the 95th percentile male, with modular padding made from the team's own driver measurements.

Seat
Carbon fibre
Visibility
270 degree driver view
Driver adjustment
Modular padding
Explore ergonomics

Subsystem 10 of 13

GLV

GLV includes the vehicle's control unit, data acquisition system and power distribution module, seamlessly connected through our custom wire harness.

GLV supply
24 V lithium iron phosphate battery
Control
Dual VCUs
Harness mass
2.1 kg
Explore GLV

Subsystem 11 of 13

Steering

Steering turns the driver's input into wheel angle and carries feel back to the driver. On WFR26-E it is an evolution of the 2025 system, with a shorter steer arm, a quicker ratio and a steering angle sensor so handling can be measured.

Steer ratio
3.130:1
Steer arm
60 mm
Static toe
1 degree toe-out
Explore steering

Subsystem 12 of 13

Suspension

Controls the race car's motion to maximize tire grip and achieve the fastest lap times possible.

Type
Decoupled heave and roll
Anti-dive / anti-squat
10% / 10%
Ride height
40 mm design
Explore suspension

Subsystem 13 of 13

Vehicle

Vehicle is the team's whole-car group: it links competition points targets to lap-time simulation and sets the performance targets each subsystem designs to.

Wheelbase
1550 mm
CG height
270 mm design
Explore vehicle
WFR26E, car 105, side-on on a stone plaza in front of stone steps, a team member standing behind it

Build the next one.

Recruitment is open. You do not need to be an engineer or know anything about racing. Bring your curiosity and we will teach you the rest.

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