The Chevrolet Corvette Grand Sport Convertible 1LT is a rear wheel drive motor car, with the engine located in the front, and a 2 door convertible/cabriolet bodyshell.
It forms part of Chevrolet's 1Y model series.
Power is supplied by an overhead valve, 6.2 litre naturally aspirated 8 cylinder motor, with 2 valves per cylinder that develops power and torque figures of 460 bhp (466 PS/343 kW) at 6000 rpm and 628 N·m (463 lb·ft/64 kgm) at 4600 rpm respectively.
The engine delivers its power through to the wheels via a 7 speed manual gearbox.
Its quoted weight at the kerb is 1582 kg.
Full specs
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Applicable to the USA domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2710 mm | 106.7 inches | |
| Track/tread (front) | 1600 mm | 63 inches | |
| Track/tread (rear) | 1567 mm | 61.7 inches | |
| Length | 4493 mm | 176.9 inches | |
| Width | 1877 mm | 73.9 inches | |
| Height | 1237 mm | 48.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.66 | ||
| Kerb weight | 1582 kg | 3488 lb | |
| Weight distribution | |||
| fuel tank capacity | 70 litres | 15.4 [18.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | LT1 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 6.2 litre 6162 cc (376.028 cu in) |
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| Bore × Stroke | 103.25 × 92 mm
4.06 × 3.62 in |
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| Bore/stroke ratio | 1.12 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (SAE net) |
466 PS (460 bhp) (343 kW) at 6000 rpm |
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| maximum torque (SAE net) |
628 Nm (463 ft·lb) (64 kgm) at 4600 rpm |
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| Specific output (SAE net) |
55.7 kW/litre 75.7 ps/litre 74.7 bhp/litre 1.22 bhp/cu in |
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| Specific torque (SAE net) |
101.91 Nm/litre
1.23 ft·lb/cu3 |
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| Engine construction | cast aluminum block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 11.5:1 | ||
| Fuel system | direct petrol injection | ||
| bmep (brake mean effective pressure) | 1280.7 kPa (185.8 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 770.25 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | Higher is better 294.81 PS/tonne (1000 kg) 0.29 PS/kg 216.83 kW/tonne (1000 kg) 0.22 kW/kg 290.77 bhp/tonne (1000 kg) 0.29 bhp/kg 0.13 bhp/lb |
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| Weight-to-power ratio | Lower is better 4.61 kg/kW 7.7 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 16/25 US MPG EPA city/highway | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 14.7/9.4 l/100km city/highway | ||
| km/litre | 6.8/10.6 km/l city/highway | ||
| UK MPG | 19.2/30.0 UK MPG city/highway | ||
| US MPG | 16.0/25.0 US MPG city/highway | ||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 10 x 19 | ||
| Wheel size rear | 12 x 20 | ||
| Tyres front | Michelin Pilot Super Sport P285/30 ZR 19 | ||
| Tyres rear | Michelin Pilot Super Sport P335/25 ZR 20 | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 320 mm | ||
| Rear brake diameter | 338 mm | ||
| Braked area | |||
| Gearbox | 7 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | 3.42 | ||
| general | |||
| Carfolio.com ID | 549241 | ||
| Production total | |||
| Model code | 1YW67 | ||
| Model family | 1Y | ||
| RAC rating | 52.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2018 Chevrolet Corvette Grand Sport Convertible 1LT added 2018-04-15. Last modified 2020-03-16. |
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