ET1

ET1 2008

20080921b Fiorano

ET1 is the first racing car designed and manufactured by the E-Team Squadra Corse. After 9 months from the beginning of the project, the ET1 competed at the Formula SAE 2008 event in Fiorano (Italy) and achieved the first season goal: reliability.

Specifications

Model

Name: ET1
Year: 2008
Colours: Black, white and red

Dimensions

Lenght: 2910 mm
Width: 1383 mm
Height: 1286 mm
Mass: 280 kg
Wheelbase: 1600 mm
Front track: 1206 mm
Rear track: 1150 mm

Suspensions and tires

Suspension type: Unequal length double wishbone with push-rod activated spring-dampers
Tires: 6.2/20 R13 Avon Compound A54
Rims: 7” channel, Al-Mg cast rims
Hubs: FIAT components
Bearings: FIAT components
Uprights: 7075-Al, three parts (front). 7075-Al, two parts (rear)
Spring dampers: Marzocchi ROCO TST-R with 2 spring series
Anti-roll bars: 3 settings front and rear
Steering system: Pinion-rack system

Brake system

Rotors: Fixed cast iron 230mm diameter, mounted on aluminium hubs (front). Fixed cast iron 250mm diameter, differential mounted (rear)
Master Cylinder: Tilton 13/16″ bore (front). Tilton 1″ bore (rear)
Calipers: Tarox anticorodal 4-piston caliper, fixed (front). Tarox anticorodal 6-piston caliper, fixed (rear)

Frame

Frame construction: Tubular space frame
Material: ST37-4 steel round tubing 25mm dia and 25CrMo4 16 mm diameter
Joining method and material: TIG welding

Bodywork

Bodywork: Fiber glass

Engine

Model: 2008 Aprilia RX 5.5
Bore: 80 mm
Stroke: 55 mm
Cylinders: 2
Displacement: 550cc
Lubrification: Dry sump with external oil tank and separate gearbox lubrication
Compression ratio: 12:1
Throttle Body / Mechanism: 36 mm, butterfly throttle actuation
Fuel Type: 98 RON
Fuel System: Indirect injection, 2 injectors
Cooling system: One radiator with thermostatic controlled electric fans

Electronics

ECU (Engine Control Unit): Walbro TDD – HPUH-1 formula SAE
GCU (Gear Control Unit): DSP-based electronic control system for gear and clutch management, designed and developed by the E-Team
DLS (Data-logging System): PC-like device-based electronic system for dynamic data monitoring and storage, designed and developed by the E-Team
UI (User Interface): Commands and indicators, designed and developed by the E-Team

Drivetrain

Clutch: Wet multiple-disc, cable operated
Gearshift: 5-speed semiautomatic sequential gear, voice coil actuated
Differential: Bacci LSD with custom housing design
Final ratio: 15/36