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Riley MPH

(1934 model)

Brief specs of 1934 Riley MPH

2-door 2-seater roadster, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, OHV (overhead valve, I-head), 1726 cm3 / 105.3 cu in / 105.3 cu in, 41.8 kW / 56.1 hp / 56.1 hp @ 4800 rpm / 4800 rpm / 4800 rpm, manual 4-speed transmission, rear wheel drive, 143 km/h / 89 mph / 89 mph top speed

units: metric UK US

Basic (general) data

Marque (make)RileyIssued from1934
ModelMPHIssued until
SerieMPHNumber made
Model familyBody construction
Model codeBody designation
ManufacturerRileyCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typeroadsterNumber of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3658 mm / 144.0 in / 144.0 inTotal (curb) weight914 kg / 2015 lb / 2015 lb
Width1460 mm / 57.5 in / 57.5 inDry weight
HeightLoad capacity
Wheelbase2477 mm / 97.5 in / 97.5 inGross (max.) weight
Track frontTowing weight
Track rearWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.48  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders6
Engine Typestraight (inline) Total number of valves12
Engine ManufacturerRileyValves per cylinder2
Engine constructionBore62.0 mm / 2.44 in / 2.44 in
Fuelpetrol (gasoline)Stroke95.2 mm / 3.75 in / 3.75 in
Fuel detailsBore/Stroke ratio0.65
Fuel supply2 SU carbsEngine displacement1726 cm3 / 105.3 cu in / 105.3 cu in
Engine Main bearingsUnitary capacity287.67 cm3/cylinder / 17.555 cu in/cylinder / 17.555 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio7.1 : 1
SumpMax. output power41.8 kW / 56.1 hp / 56.1 hp at 4800 rpm / 4800 rpm / 4800 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)16.7 kW / 22.4 hp / 22.4 hp (est.)
CoolantwaterSpecific output24.2 kW/l / 0.532 bhp/cu in / 0.532 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio5

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed143 km/h / 89 mph / 89 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio61.3 kW/ton / 46.4 bhp/ton / 46.4 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lockTurning circle
Suspension frontLive axle, Semi-elliptic leaf springsSuspension rearLive axle, Semi-elliptic leaf springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Riley MPH

Infobox

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