SPR21evo

Season 2021/2022

80 kW

Motor power

21 Nm

Torque

209 kgs

Total weight

Engine

Motor: AMK DD5-14-10-POW synchronous motors
Maximum motor torque: 21Nm
Maximum engine speed: 20000 rpm
Maximum engine power: approx. 35kW at 16000 rpm

Gearbox

All-wheel drive, reduced planetary gearbox (i=11.71)
Maximum wheel torque Tmax=246Nm
Maximum speed approx. 130km/h
Maximum system output: 80kW
Milled wheel carrier made from EN-AW7075
Cooling through SLS cooling jacket

Suspension

Stabilizers on front and rear axle -KW dampers
Pushrod system in which springs and dampers are arranged longitudinally to the vehicle (deflection by rocker).
The steering angle is variable thanks to several connection points on the wheel carrier
Steering: Self-developed steering gear – Wheel suspension: Double triangular wishbone made of CFRP
10-inch rims from OZ-Racing
Tires: Hoosier R25B 16×7.5-10

Electronics

CAN bus
Freely configurable HMI (Human Machine Interface)
Optimized cable routes (automotive standard)
Replaceable wiring harness
LV: 24V (via DCDC converter from the HV accumulator)
Data logging

Chassis

Monocoque with aluminum honeycomb core
Torsional rigidity: 4000 Nm/°
Aero- and weight-optimized
Firewall: 0.5 mm aluminum and aramid
Crashbox: Aluminum honeycomb

Aero

Newly developed aerodynamics package
14,1 kgs
Front & rear wing
Side boxes improve flow to the radiators
Downforce: 650N at 60km/h
Adjustable balance

A racing car rarely drives alone.