The Triumph 2.5-litre PI Mk II Estate is an estate/station wagon with 5 doors and a front mounted powerplant which delivers its power to the rear wheels.
The power is produced by a naturally aspirated engine of 2.5 litre capacity. This unit features overhead valve valve gear, 6 cylinder layout, and 2 valves per cylinder. It develops 132 bhp (134 PS/98 kW) of power at 5450 rpm, and maximum torque of 208 N·m (153 lb·ft/21.2 kgm) at 2000 rpm.
The engine powers the wheels compliments of a 4 speed manual gearbox.
The Triumph 2.5-litre PI Mk II Estate weighs a stated 1270 kg at the kerb.
Top claimed speed is 177 km/h (110 mph).
Full specs
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| bodywork | |||
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| Body type | 4/5 seater estate/station wagon | ||
| Number of doors | 5 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2692 mm | 106 inches | |
| Track/tread (front) | 1332 mm | 52.4 inches | |
| Track/tread (rear) | 1342 mm | 52.8 inches | |
| Length | 4502 mm | 177.2 inches | |
| Width | 1651 mm | 65 inches | |
| Height | 1422 mm | 56 inches | |
| Ground clearance | 150 mm | 5.9 inches | |
| length:wheelbase ratio | 1.67 | ||
| Kerb weight | 1270 kg | 2800 lb | |
| Weight distribution | |||
| fuel tank capacity | 64 litres | 14.1 [16.9] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Triumph | ||
| Engine code | |||
| Cylinders | Straight 6 | ||
| Capacity | 2.5 litre 2498 cc (152.437 cu in) |
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| Bore × Stroke | 74.7 × 95 mm
2.94 × 3.74 in |
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| Bore/stroke ratio | 0.79 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 12 valves in total |
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| maximum power output (DIN) |
134 PS (132 bhp) (98 kW) at 5450 rpm |
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| maximum torque (DIN) |
208 Nm (153 ft·lb) (21.2 kgm) at 2000 rpm |
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| Specific output (DIN) |
39.4 kW/litre 53.6 ps/litre 52.8 bhp/litre 0.87 bhp/cu in |
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| Specific torque (DIN) |
83.27 Nm/litre
1.01 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 9.5:1 | ||
| Fuel system | Lucas fuel injection | ||
| bmep (brake mean effective pressure) | 1046.4 kPa (151.8 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 416.33 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 7.5 s | ||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 17.5 s | ||
| Standing kilometre | |||
| Maximum speed | 177 km/h (110 mph) | ||
| Power-to-weight ratio | Higher is better 105.38 PS/tonne (1000 kg) 0.11 PS/kg 77.51 kW/tonne (1000 kg) 0.08 kW/kg 103.94 bhp/tonne (1000 kg) 0.1 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.9 kg/kW 21.55 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 | 4.000 | ||
| Turning circle | |||
| Front suspension | I.CS. | ||
| Rear suspension | I.CS. | ||
| Wheel size front | 5J x 13 | ||
| Wheel size rear | 5J x 13 | ||
| Tyres front | 185 SR 13 | ||
| Tyres rear | 185 SR 13 | ||
| Brakes F/R | Di/Dr-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | 1929 cm2 | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.45 | ||
| general | |||
| Carfolio.com ID | 86218 | ||
| Production total | |||
| Model code | |||
| RAC rating | 20.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1972 Triumph 2.5-litre PI Mk II Estate added before December 1995. Last modified 2020-07-12. |
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