The I-Mark LS is a rear wheel drive saloon (sedan) automobile with a front placed engine, sold by Isuzu.
Power is supplied by a single overhead camshaft, 1.8 litre naturally aspirated 4 cylinder powerplant, with 2 valves per cylinder that provides power and torque figures of 80 bhp (81 PS/60 kW) at 4800 rpm and 129 N·m (95 lb·ft/13.2 kgm) at 3000 rpm respectively.
The engine transmits power to the wheels by means of a 5 speed manual gearbox.
Claimed kerb weight is 999 kg.
Full specs
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Applicable to the USA domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2395 mm | 94.3 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 4336 mm | 170.7 inches | |
| Width | 1570 mm | 61.8 inches | |
| Height | 1359 mm | 53.5 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.81 | ||
| Kerb weight | 999 kg | 2202 lb | |
| Weight distribution | |||
| fuel tank capacity | 51.9 litres | 11.4 [13.7] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Isuzu | ||
| Engine code | G180Z | ||
| Cylinders | Straight 4 | ||
| Capacity | 1.8 litre 1817 cc (110.88 cu in) |
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| Bore × Stroke | 84 × 82 mm
3.31 × 3.23 in |
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| Bore/stroke ratio | 1.02 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 8 valves in total |
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| maximum power output | 81 PS (80 bhp) (60 kW) at 4800 rpm |
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| maximum torque | 129 Nm (95 ft·lb) (13.2 kgm) at 3000 rpm |
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| Specific output | 32.8 kW/litre 44.6 ps/litre 44 bhp/litre 0.72 bhp/cu in |
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| Specific torque |
71 Nm/litre
0.86 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | |||
| Fuel system | |||
| bmep (brake mean effective pressure) | 892.2 kPa (129.4 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 454.25 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 81.19 PS/tonne (1000 kg) 0.08 PS/kg 59.72 kW/tonne (1000 kg) 0.06 kW/kg 80.08 bhp/tonne (1000 kg) 0.08 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 16.75 kg/kW 27.97 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 | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 175/70 SR 13 | ||
| Tyres rear | 175/70 SR 13 | ||
| Brakes F/R | Di/Dr-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 5 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 856823 | ||
| Production total | |||
| Model code | |||
| RAC rating | 17.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1979 Isuzu I-Mark LS added 2026-06-15. Last modified 2026-06-16. |
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