Full specs1991 Buick Riviera specifications
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Applicable to the USA domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2743 mm | 108 inches | |
| Track/tread (front) | 1521 mm | 59.9 inches | |
| Track/tread (rear) | 1521 mm | 59.9 inches | |
| Length | 5037 mm | 198.3 inches | |
| Width | 1857 mm | 73.1 inches | |
| Height | 1344 mm | 52.9 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.84 | ||
| Kerb weight | 1585 kg | 3494 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | L27 | ||
| Cylinders | V 6 in 90° vee | ||
| Capacity | 3.8 litre 3791 cc (231.341 cu in) |
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| Bore × Stroke | 96.52 × 86.36 mm
3.8 × 3.4 in |
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| Bore/stroke ratio | 1.12 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 12 valves in total |
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| maximum power output (SAE net) |
172 PS (170 bhp) (127 kW) at 4800 rpm |
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| maximum torque (SAE net) |
298 Nm (220 ft·lb) (30.4 kgm) at 3200 rpm |
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| Specific output (SAE net) |
33.4 kW/litre 45.5 ps/litre 44.8 bhp/litre 0.73 bhp/cu in |
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| Specific torque (SAE net) |
78.61 Nm/litre
0.95 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 8.5:1 | ||
| Fuel system | SFI | ||
| bmep (brake mean effective pressure) | 987.8 kPa (143.3 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 631.83 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 108.75 PS/tonne (1000 kg) 0.11 PS/kg 79.98 kW/tonne (1000 kg) 0.08 kW/kg 107.26 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.5 kg/kW 20.88 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | transverse | ||
| Drive wheels | front wheel drive | ||
| Torque split | N/A | ||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | 3.300 | ||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 6 x 15 | ||
| Wheel size rear | 6 x 15 | ||
| Tyres front | P205/70 R 15 | ||
| Tyres rear | P205/70 R 15 | ||
| Brakes F/R | VeDi/Di-S | ||
| Front brake diameter | 260 mm | ||
| Rear brake diameter | 254 mm | ||
| Braked area | |||
| Gearbox | 4 speed automatic | ||
| Top gear ratio | 0.7 | ||
| Final drive ratio | 3.06 | ||
| general | |||
| Carfolio.com ID | 17963 | ||
| Production total | |||
| Model code | Z57 | ||
| Model family | 4E | ||
| RAC rating | 34.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1991 Buick Riviera added before December 1995. Last modified 2022-09-11. |
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Buick Riviera models
fixed-head coupé FF 3A 3791 cm3/231.3cuin 167 PS 165 bhp 123 kW 1553 kg
2 door fixed-head coupé FF 3A 3791 cm3/231.3cuin 152 PS 150 bhp 112 kW 1501 kg
2 door fixed-head coupé FF 4A 3791 cm3/231.3cuin 142 PS 140 bhp 104 kW 1501 kg
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