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Mazda RX-7

(1978 model)

Brief specs of 1978 Mazda RX-7

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 2-cylinder rotary (Wankel) engine, 2292 cm3 / 139.9 cu in / 139.9 cu in, 78.3 kW / 105.0 hp / 105.0 hp @ 6000 rpm / 6000 rpm / 6000 rpm, 144.0 N·m / 106.2 lb·ft / 106.2 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 5-speed transmission, rear wheel drive, 185 km/h / 115 mph / 115 mph top speed

units: metric UK US

Basic (general) data

Marque (make)MazdaIssued from1978
ModelRX-7Issued until
SerieRX-7Number made
Model familyBody construction
Model codeBody designation
ManufacturerMazda Motor Corp.CountryJP

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)4160 l / 146.91 cu ft / 146.91 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4285 mm / 168.7 in / 168.7 inTotal (curb) weight1024 kg / 2258 lb / 2258 lb
Width1674 mm / 65.9 in / 65.9 inDry weight
Height1270 mm / 50.0 in / 50.0 inLoad capacity
Wheelbase2421 mm / 95.3 in / 95.3 inGross (max.) weight
Track front1420 mm / 55.9 in / 55.9 inTowing weight
Track rear1400 mm / 55.1 in / 55.1 inWeight distribution (front)
Ground clearanceFuel capacity65 l / 14.3 UK gal / 17.2 US gal
Length/wheelbase ratio1.77  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.36Frontal area (A)1.81 m2 / 19.5 sq ft / 19.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.65 m2 / 7.0 sq ft / 7.0 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)16.2 kW / 21.7 hp / 21.7 hp (est.)

Engine

Engine CodeTotal number of cylinders2
Engine Typerotary (Wankel) (Inline, 2 cylinder (twin))Total number of valves
Engine ManufacturerMazdaValves per cylinder
Engine constructionBore
Fuelpetrol (gasoline)Stroke
Fuel detailsBore/Stroke ratio
Fuel supply1 Ni carbEngine displacement2292 cm3 / 139.9 cu in / 139.9 cu in
Engine Main bearingsUnitary capacity1146.00 cm3/cylinder / 69.933 cu in/cylinder / 69.933 cu in/cylinder
Cam DesignCompression ratio9.4 : 1
SumpMax. output power78.3 kW / 105.0 hp / 105.0 hp at 6000 rpm / 6000 rpm / 6000 rpm
AspirationnaturalMax. torque144.0 N·m / 106.2 lb·ft / 106.2 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)45.4 kW / 60.9 hp / 60.9 hp (est.)
CoolantwaterSpecific output34.2 kW/l / 0.751 bhp/cu in / 0.751 bhp/cu in
Catalytic converternoSpecific torque62.8 N·m/l / 0.55 lb·ft/cu in / 0.55 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio0.83
  Final gear (drive) ratio3.91

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed185 km/h / 115 mph / 115 mph
Acceleration 0-60 mph (97 km/h)9.50 s / 9.50 s / 9.50 sPower-to-weight ratio102.5 kW/ton / 77.7 bhp/ton / 77.7 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 circle10.0 m / 32.8 ft / 32.8 ft
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres front185/70-R13Tyres rear185/70-R13
Brakes frontdiscBrakes reardisc
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Mazda RX-7

Infobox

The Varying Drivers License Requirements Around the World

Minimum driving ages, the number of passengers young drivers can have with them at any time, the times of day that drivers under the age of 18 can drive…

These all vary depending on where young motorists are driving. They vary, even, across the United States.

For instance, in Maine, motorists under the age of 18 aren’t allowed to have any passengers with them as they drive for the first 180 days after they obtain their licenses. In Alabama, motorists under the age of 18 can have one passenger with them.

And that’s just one example of the differences in driving license requirements from one part of the country to the next. The differences are even more pronounced when comparing one country to another. Minimum driving ages vary widely across the world. While most states in the United States allow youngsters to earn their learner’s permits at the age of 15, many other countries require their residents to be much older before they get behind the wheel of a car.

(...)

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