e04

With the introduction of the fourth generation of our racing car, we have developed a high-performance racing vehicle based on the knowledge gained from previous models. Particular attention was paid to reducing the weight of the vehicle by using smaller tyres. The implementation of these smaller tyres required a complete redesign of the suspension. New, weight-optimised wheel carriers were required at both the front and rear, and the gearbox on the rear axle was also revised. To further minimise the weight and focus the development on the wheel carriers, the suspension system was somewhat simplified compared to the e03. In combination with the revised battery design, we have achieved our goal of a significant weight reduction, bringing the total weight of the vehicle down to 216 kg.

THE
RACE CAR

With our e04, we have developed a competitive vehicle based on the experience of previous models. The focus here is on weight reduction through the use of smaller tyres, which requires a redesign of the suspension. At FS-Netherlands and FS-Austria, we have made innovative developments with this, in particular through weight-optimised wheel carriers and a revised battery design, resulting in an impressive overall weight reduction.

Overall vehicle

Weight: 216 kg
Dimensions: 3,1 x 1,45 x 1,2 m
Maximal speed: 120 km/h
Wheelbase: 1550 mm
Power: 72 kW (95 PS)

High-voltage accumulator

Eigenentwickeltes Akkusystem mit Fokus auf Reduktion von Gewicht
Voltage: 600 VDC (144s4p), capacity: 6.2 kWh
Self-developed battery management system

Chassis

Weight-reduced tubular steel frame
Better accessible firewall
Carbon seat customised for the driver

Suspension

10 inch rims
Newly developed, smaller and lighter wheel carriers
Pushrod independent suspension with double wishbones
Topology-optimised rocker on the rear axle

Aerodynamics

Downforce-optimised aero-dynamic package
Self-built front, side and rear wings made of carbon fiber
Closed undertray with diffuser

Powertrain

Independent PMSM wheel hub motors
Stepped planetary gearbox with a ratio of 13 for each motor
Total torque: 600 Nm
Water cooling through additively manufactured motor cooling housings and inverter cooling plates