The 2½-Litre Mk I is a rear wheel drive convertible/cabriolet car with a front mounted engine, produced by Lagonda.
It is powered by a naturally aspirated engine of 2.6 litre capacity. This unit features double overhead camshaft valve gear, 6 cylinder layout, and 2 valves per cylinder. It has an output of 105 bhp (106 PS/78 kW) of power at 5000 rpm, and maximum torque of 180 N·m (133 lb·ft/18.4 kgm) at 3000 rpm.
Power is transferred to the wheels via a 4 speed manual transmission.
The Lagonda 2½-Litre Mk I weighs a quoted 1471 kg at the kerb.
It is said to be able to manage a maxiumum speed of 135 km/h which is 84 mph.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 4/5 seater convertible/cabriolet | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2883 | 113.5 | |
| Voies AV | 1432 | 56.4 | |
| Voies AR | 1442 | 56.8 | |
| Longueur | 4775 | 188 | |
| Largeur | 1727 | 68 | |
| Hauteur | 1626 | 64 | |
| Garde au sol | 178 | 7 | |
| 1.66 | |||
| Poids avec pleins | 1471 kg | 3243 | |
| Répartition poids AV | 48.5% front | ||
| Réservoir à essence | 86.4 litres | 19 [22.8] UK [US] gal. | |
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | |||
| maître-couple | |||
| SCx | |||
| naturally aspirated petrol | |||
| Constructeur du moteur | Aston Martin | ||
| Type moteur | |||
| Cylinders | Straight 6 | ||
| Cylindrée | 2.6 litre 2580 cc (157.441 cu in) |
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| Alésage × Course | 78 × 90 mm
3.07 × 3.54 in |
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| Rapport alésage / course | 0.87 | ||
| Distribution | double overhead camshaft (DOHC)
2 Soupapes par cylindre 12 Total vannes |
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| Puissance maximale | 106 PS (105 bhp) (78 kW) à 5000 tr/mn |
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| Couple maximale | 180 Nm (133 ft·lb) (18.4 kgm) à 3000 tr/mn |
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| Specific output | 30.3 kW/litre 41.3 ps/litre 40.7 bhp/litre 0.67 bhp/cu in |
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69.77 Nm/litre
0.84 ft·lb/cu3 |
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| Construction | |||
| Lubrification | |||
| Taux de compression | 6.5:1 | ||
| Carburant | 2 SU carbs | ||
| bmep (brake mean effective pressure) | 876.7 kPa (127.2 psi) | ||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 430 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalyseur | N | ||
| Performances | |||
| 0-80km/h | 12.7 s | ||
| 0-60mph | 18.8 s | ||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vitesse | 135 km/h (84 mph) | ||
| Power-to-weight ratio | Higher is better 72.37 PS/tonne (1000 kg) 0.07 PS/kg 53.23 kW/tonne (1000 kg) 0.05 kW/kg 71.38 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 18.79 kg/kW 31.38 lb/bhp |
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| Consommation | |||
| Consommation | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Emissions de CO₂ | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| Châssis | |||
| Emplacement de moteur | front | ||
| Engine layout | longitudinal | ||
| Traction | rear wheel drive | ||
| Répartition du couple | N/A | ||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | 11.60 m | ||
| Suspension AV | I.CS. | ||
| Suspension AR | dD.TB. | ||
| Roues AV | |||
| Roues AR | |||
| Pneumatiques AV | |||
| Pneumatiques AR | |||
| Freins AV/AR | Dr/Dr | ||
| Diamètre des freins AV | |||
| Diamètre des freins AR | |||
| Braked area | |||
| Transmission | 4 speed manual | ||
| Rapport de démultiplication supérieure | 1 | ||
| Rapport de pont | 4.60 | ||
| Généralités | |||
| Carfolio.com ID | 64779 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 22.6 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1946 Lagonda 2½-Litre Mk I added before December 1995. Last modified 2013-02-28. |
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