UoP5e

2015–2016
EMRAX 228 electric

UoP5e features a chassis made entirely from honeycomb aluminium panels, a unique choice among Formula Student teams, along with better driver ergonomics and impressive efficiency, while still performing strongly on track. The cut-and-fold monocoque is sustainable yet stiff and durable, fits a wide range of drivers and helps keep the power-to-weight ratio high. A fully electric powertrain is combined with a custom gearbox that optimises motor torque delivery, and an advanced aerodynamic package makes it as much a joy to watch as to drive.

80 kW

Power (100 kW motor, limited)

240 Nm

Torque

210 kg

Weight

Aluminium

Honeycomb panel monocoque

Specifications

Length / width / height / wheelbase

2900 / 1316 / 1145 / 1600 mm

Track (front / rear)

1165 / 1095 mm

Weight

210 kg

Tyres

18.0×7.5-10 Hoosier R25B slicks / 18.0×6.0-10 Hoosier intermediates

Wheels

7×10 in, 3-piece spun aluminium rim with self-designed Al7075 centre, single-lug, 46 mm offset

Suspension

Double unequal length carbon fibre A-arms with direct-acting Öhlins damper on the lower A-arm

Brake rotors (front / rear)

Floating cast iron, hub mounted, 180 mm outer dia., drilled; 5 mm / 4 mm thick

Brake calipers (front / rear)

ISR 22-048 OB four-piston, 25 mm pistons, radial mount / ISR 22-049 two-piston, 25 mm pistons, radial mount

Chassis

5-piece aluminium panel monocoque

Motor

Enstroj EMRAX 228 HV LC

Power / torque

100 kW at 5000 rpm (limited to 80 kW) / 240 Nm for 30 s

Transmission

Direct

Differential

Drexler limited slip differential