| petrol | |
| diesel | |
| alcohol based | |
| gas (LPG, CNG) | |
| steam | |
| electricity |
(1927 model)
2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, OHV (overhead valve, I-head), 2916 cm3 / 177.9 cu in / 177.9 cu in, 41.0 kW / 55.0 hp / 55.0 hp @ 3600 rpm / 3600 rpm / 3600 rpm, manual 4-speed transmission, rear wheel drive, 122 km/h / 76 mph / 76 mph top speed
| Marque (make) | Sunbeam | Issued from | 1927 |
|---|---|---|---|
| Model | 20 | Issued until | |
| Serie | 20 | Number made | |
| Model family | Body construction | ||
| Model code | Body designation | ||
| Manufacturer | Sunbeam | Country | UK |
| Base platform | Number of doors | 2 | |
|---|---|---|---|
| Bodywork type | drophead coupé (convertible coupé) | Number of seats | 2 |
| Bodywork designer | Cargo capacity (volume) | ||
| Passenger space (volume) | Max. cargo capacity (volume) |
| Length | 4451 mm / 175.2 in / 175.2 in | Total (curb) weight | 1372 kg / 3025 lb / 3025 lb |
|---|---|---|---|
| Width | 1803 mm / 71.0 in / 71.0 in | Dry weight | |
| Height | Load capacity | ||
| Wheelbase | 3162 mm / 124.5 in / 124.5 in | Gross (max.) weight | |
| Track front | 1397 mm / 55.0 in / 55.0 in | Towing weight | |
| Track rear | 1397 mm / 55.0 in / 55.0 in | Weight distribution (front) | |
| Ground clearance | Fuel capacity | ||
| Length/wheelbase ratio | 1.41 |
| Drag coefficient (Cd, Cx, Cw) | Frontal area (A) | ||
|---|---|---|---|
| Aerodynamic coefficient (Cd×A) | Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph) |
| Engine Code | Total number of cylinders | 6 | |
|---|---|---|---|
| Engine Type | straight (inline) | Total number of valves | 12 |
| Engine Manufacturer | Sunbeam | Valves per cylinder | 2 |
| Engine construction | Bore | 75.0 mm / 2.95 in / 2.95 in | |
| Fuel | petrol (gasoline) | Stroke | 110.0 mm / 4.33 in / 4.33 in |
| Fuel details | Bore/Stroke ratio | 0.68 | |
| Fuel supply | 1 Claudel-Hobson carb | Engine displacement | 2916 cm3 / 177.9 cu in / 177.9 cu in |
| Engine Main bearings | Unitary capacity | 486.00 cm3/cylinder / 29.658 cu in/cylinder / 29.658 cu in/cylinder | |
| Cam Design | OHV (overhead valve, I-head) | Compression ratio | 5.5 : 1 |
| Sump | Max. output power | 41.0 kW / 55.0 hp / 55.0 hp at 3600 rpm / 3600 rpm / 3600 rpm | |
| Aspiration | natural | Max. torque | at |
| Compressor type | N/A | Maximum rpm | |
| Intercooler | no | Max. net output (power at the wheels) | 16.4 kW / 22.0 hp / 22.0 hp (est.) |
| Coolant | water | Specific output | 14.1 kW/l / 0.309 bhp/cu in / 0.309 bhp/cu in |
| Catalytic converter | no | Specific torque |
| Transmission type | manual | Number of gears | 4 |
|---|---|---|---|
| Wheel drive | rear wheel drive | Top gear (drive) ratio | 5.5 |
| Final gear (drive) ratio |
| Acceleration 0-50 mph (80 km/h) | Top (maximal) speed | 122 km/h / 76 mph / 76 mph | |
|---|---|---|---|
| Acceleration 0-60 mph (97 km/h) | Power-to-weight ratio | 40.1 kW/ton / 30.4 bhp/ton / 30.4 bhp/ton | |
| Acceleration 0-100 km/h | Fuel consumption, City (urban) | ||
| Acceleration 0-100 mph (160 km/h) | Fuel consumption, Road (extra-urban) | ||
| Acceleration 80-120 km/h (50-70 mph) in top | Fuel consumption, Mixed (combined) | ||
| Standing ¼mile time | Fuel consumption, Euro | ||
| Standing kilometer time | CO2 emissions | ||
| Range |
| Engine location | front | Engine alignment | longitudinal |
|---|---|---|---|
| Steering | Steering details | ||
| Turns lock-to-lock | Turning circle | ||
| Suspension front | Live axle, Semi-elliptic leaf springs | Suspension rear | Live axle, Semi-elliptic leaf springs |
| Wheels front | Wheels rear | ||
| Tyres front | 31 x 5.25 | Tyres rear | 31 x 5.25 |
| Brakes front | Brakes rear | ||
| Brake diameter front | Brake diameter rear | ||
| Brakes details | Braked area |
Technical specifications and performance data of Sunbeam 20
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