1921 Roamer 4-75 E specifications

1921 Roamer 4-75 E data
 
bodywork
Body type
Number of doors
Designer
dimensions & weights
Wheelbase 3251 mm 128 inches
Track/tread (front) 1422 mm 56 inches
Track/tread (rear) 1422 mm 56 inches
Length
Width
Height
Ground clearance
length:wheelbase ratio
Kerb weight
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type naturally aspirated petrol
Engine manufacturer Rochester-Duesenberg
Engine code
Cylinders Straight 4
Capacity 5 litre
4962 cc
(302.8 cu in)
Bore × Stroke 101.8 × 152.4 mm
4.01 × 6 in
Bore/stroke ratio 0.67
Valve gear side valve (SV)
2 valves per cylinder
8 valves in total
maximum power output 76 PS (75 bhp) (56 kW)
at 1800 rpm
maximum torque
Specific output 11.3 kW/litre
15.3 ps/litre
15.1 bhp/litre
0.25 bhp/cu in
Engine construction
Lubrication
compression ratio
Fuel system 1 Stromberg carburettor
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings 2
Engine coolant Water
Unitary capacity 1240.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
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
Weight-to-power ratio
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
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front 32 x 4½
Tyres rear 32 x 4½
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4 speed manual
Top gear ratio
Final drive ratio
general
Carfolio.com ID215985
Production total
Model code
RAC rating 25.7
Insurance classification No information available
Tax band No information available
1921 Roamer 4-75 E added 2010-05-31.
Last modified 2013-02-28.

Roamer 4-75 models

tourer FR 5584 cm3/340.8cuin
Cars similar to the 1921 Roamer 4-75 E
tourer FR 3M 4730 cm3/288.6cuin 76 PS 75 bhp 56 kW 1465 kg
4 door tourer FR 4M 2994 cm3/182.7cuin 72 PS 71 bhp 53 kW 1778 kg
4 door tourer FR 3M 5332 cm3/325.4cuin 76 PS 75 bhp 56 kW
2 door roadster FR 4M 4160 cm3/253.9cuin 76 PS 75 bhp 56 kW 1700 kg
FR 3M 4530 cm3/276.4cuin
FR 3M 5438 cm3/331.8cuin 76 PS 75 bhp 56 kW
4 door tourer FR 4M 4766 cm3/290.8cuin 78 PS 77 bhp 57 kW 2350 kg
4 door tourer FR 3M 3670 cm3/224.0cuin
4 door tourer FR 3M 4730 cm3/288.6cuin 77 PS 76 bhp 57 kW
tourer FR 3M 3670 cm3/224.0cuin 1361 kg
FR 4M 5584 cm3/340.8cuin 76 PS 75 bhp 56 kW
4 door sedan/​saloon FR 3M 4968 cm3/303.2cuin 72 PS 71 bhp 53 kW
4 door tourer FR 3M 4968 cm3/303.2cuin 72 PS 71 bhp 53 kW 1703 kg
4 door tourer FR 3M 3670 cm3/224.0cuin
FR 4M 5703 cm3/348.0cuin 79 PS 78 bhp 58 kW 1882 kg