General Specifications
Layout
2 steering frontwheels, 1 driving rearwheel
Bodywork
Selfcarrying; made of carbon, aramid and glass fibres, PVC-foam and Nomex-honeycomb
Lenght / Height
320 cm / 60 cm
Width ( body / total )
44 cm / 72 cm
Wheelbase / Track
174 cm / 61 cm
Frontal Area / Cd / Cd x V2/3
0.26 m2 / 0.14 / 0.09 (Cd & V measured without front wheels)
Weight
~38 kg (without driver)
Tyres
Michelin “Eco-Marathon Special”, size 44-406 (20”)
Brakes
2 x hydraulic Magura MTB on rearwheel
Driveline
1-stage 1-speed chaindrive to rearwheel; manual clutch on cranckshaft; freewheel (1-way bearing) on rearwheel; driveratio between 8.7 – 10.2
Vehicle Record
1689 km/l (0.0592 l/100km) ; 4771 mpg (U.K.) ; Nokia (FIN) 1998
Engine Specifications
Make
Selfmade prototype
Type
4-stroke petrol engine
Bore x Stroke / Volume
35 × 43 mm / 41 cm3
Combustion Chamber
Hemisphere
Valve layout
DOHC; 2 valves; roller followers
Valve timing
I.O. @ 5 deg BTDC
I.C. @ 25 deg ABDC
E.O. @ 35 deg BBDC
E.C. @ 5 deg ATDC
Compression ratio
15,0
Ignition System
ECU controlled twinspark
Sparkplugs
2 x Bosch UR4AS
Ignition Timing
ECU controlled by revs; 0 – 35 deg BTDS
Fuel Distribution
ECU controlled fuel injection with Bosh special nozzle; fuel pressure 4,8 bars
Lubrication
Wet sump; ~15 ml
ECU
Hestec engine control unit by Toijalan Autosähkö. Injection and ignition controlled depending on revs(300rpm steps), inlet manifold pressure, inlet and engine temperatures
Output
max. power: ~840 W @ 4000 rpm
max. torque: ~2.5 Nm @ 2200 rpm