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About the car

The vehicle makes use of advanced materials and components such as carbon fiber composites, low rolling resistance prototype tires, and customized power delivery systems. Below, a full overview of the vehicle can be seen.

Vehicle Overview

    Wheels: Michelin prototype radial tires on 20x1.5” rims
    Wheel configuration: Two front wheel steer/one rear wheel drive
    Curb Weight: 40kg
    Wheelbase: 1800mm
    Trackwidth: 500mm
    Overall Length: 3018mm
    Engine: Custom designed, four-stroke, EFI
    Powertrain: Centrifugal clutch and fixed ration roller chain
    Structure: Carbon fiber monocoque with foam core
    Safety: 5-point harness; roll cage; disk and rim brakes
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The Engine

A custom designed single cylinder, four-stroke internal combustion engine running on Iso-Octane gasoline powers the vehicle. To conserve fuel, the engine is operated at wide open throttle for short bursts then switched off to let the vehicle coast. This cycle is repeated in what’s called the “burn and coast” method.

In order to improve the engine’s cold starting transient performance, a small displacement engine is used. This method provides a displacement which is only 1% of that found in typical small family sedans. The single-cylinder engine makes use of overhead cams, a 16:1 compression ratio and electronic fuel injection. Whereas conventional automobile engines are cooled, our engine is insulated to keep the engine warm in order to increase fuel vaporization and decrease heat loss.

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The Frame

To minimize the weight of the vehicle, the frame of the vehicle is made from a carbon fiber composite monocoque with a foam core. In a monocoque structure, the strength comes from the skin of the vehicle as opposed to a separate internal frame, much like the exoskeleton of an insect. This technology is found in exotic sports cars and professional race vehicles. The frame is optimized using finite element analysis.

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Aerodynamics

To reduce the air drag of the vehicle, the shell encloses the vehicle completely. Three small slits are left at the bottom for the wheels and a small opening for the engine exhaust. The driver is placed in a fully reclined position to drive the vehicle. This feature allows us to reduce the frontal area. Two molded hatches can be removed from the top of the vehicle for driver and engine access. The final shape of the vehicle was realized after many design iterations in computational fluid dynamics (CFD) software.

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