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Alfa Romeo RM Sport

(1924 model)

Brief specs of 1924 Alfa Romeo RM Sport

2-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OISE (overhead inlet, side exhaust valve), 1996 cm3 / 121.8 cu in / 121.8 cu in, 32.8 kW / 44.0 hp / 44.0 hp @ 3200 rpm / 3200 rpm / 3200 rpm, manual 4-speed transmission, rear wheel drive, 100 km/h / 62 mph / 62 mph top speed

units: metric UK US

Basic (general) data

Marque (make)Alfa RomeoIssued from1924
ModelRM SportIssued until
SerieRMNumber made129
Model familyBody construction
Model codeBody designation
ManufacturerFiat GroupCountryIT,BR,ZA

Bodywork

Base platformNumber of doors
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4250 mm / 167.3 in / 167.3 inTotal (curb) weight1450 kg / 3197 lb / 3197 lb
Width1680 mm / 66.1 in / 66.1 inDry weight
Height1650 mm / 65.0 in / 65.0 inLoad capacity
Wheelbase2900 mm / 114.2 in / 114.2 inGross (max.) weight
Track front1330 mm / 52.4 in / 52.4 inTowing weight
Track rear1330 mm / 52.4 in / 52.4 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.47  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.36 m2 / 25.4 sq ft / 25.4 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders4
Engine Typestraight (inline) Total number of valves8
Engine ManufacturerAlfa RomeoValves per cylinder2
Engine constructioncast iron blockBore76.0 mm / 2.99 in / 2.99 in
Fuelpetrol (gasoline)Stroke110.0 mm / 4.33 in / 4.33 in
Fuel detailsBore/Stroke ratio0.69
Fuel supply1 Memini carbEngine displacement1996 cm3 / 121.8 cu in / 121.8 cu in
Engine Main bearingsUnitary capacity499.00 cm3/cylinder / 30.451 cu in/cylinder / 30.451 cu in/cylinder
Cam DesignOISE (overhead inlet, side exhaust valve)Compression ratio6.0 : 1
SumpMax. output power32.8 kW / 44.0 hp / 44.0 hp at 3200 rpm / 3200 rpm / 3200 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)13.1 kW / 17.6 hp / 17.6 hp (est.)
CoolantwaterSpecific output16.4 kW/l / 0.361 bhp/cu in / 0.361 bhp/cu in
Catalytic converternoSpecific torque

Transmission

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

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed100 km/h / 62 mph / 62 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio30.3 kW/ton / 23.0 bhp/ton / 23.0 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, Leaf springSuspension rearLive axle, Leaf spring
Wheels frontWheels rear
Tyres front800 x 130Tyres rear800 x 130
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Alfa Romeo RM Sport

Infobox

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