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Jowett Jupiter R1

(1951 model)

Brief specs of 1951 Jowett Jupiter R1

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 1486 cm3 / 90.7 cu in / 90.7 cu in, 52.2 kW / 70.0 hp / 70.0 hp @ 5000 rpm / 5000 rpm / 5000 rpm, rear wheel drive, 161 km/h / 100 mph / 100 mph top speed

units: metric UK US

Basic (general) data

Marque (make)JowettIssued from1951
ModelJupiter R1Issued until
SerieJupiterNumber made
Model familyBody construction
Model codeBody designation
ManufacturerJowettCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4343 mm / 171.0 in / 171.0 inTotal (curb) weight686 kg / 1512 lb / 1512 lb
Width1575 mm / 62.0 in / 62.0 inDry weight
HeightLoad capacity
Wheelbase2362 mm / 93.0 in / 93.0 inGross (max.) weight
Track front1321 mm / 52.0 in / 52.0 inTowing weight
Track rear1321 mm / 52.0 in / 52.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.84  

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 cylinders4
Engine Typestraight (inline) Total number of valves8
Engine ManufacturerJowettValves per cylinder2
Engine constructionBore72.5 mm / 2.85 in / 2.85 in
Fuelpetrol (gasoline)Stroke90.0 mm / 3.54 in / 3.54 in
Fuel detailsBore/Stroke ratio0.81
Fuel supply2 Ze carbsEngine displacement1486 cm3 / 90.7 cu in / 90.7 cu in
Engine Main bearingsUnitary capacity371.50 cm3/cylinder / 22.670 cu in/cylinder / 22.670 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio9.2 : 1
SumpMax. output power52.2 kW / 70.0 hp / 70.0 hp at 5000 rpm / 5000 rpm / 5000 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)20.9 kW / 28.0 hp / 28.0 hp (est.)
CoolantwaterSpecific output35.1 kW/l / 0.772 bhp/cu in / 0.772 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typeNumber of gears
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio4.1

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed161 km/h / 100 mph / 100 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio102.0 kW/ton / 77.3 bhp/ton / 77.3 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 frontSuspension rear
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Jowett Jupiter R1

Infobox

Beyond basic auto insurance

In addition to having enough liability protection, there are some other coverages you should consider:

Collision: Pays for damage to your car resulting from a collision with another car, an object or as a result of flipping over. It also covers damage caused by potholes. Even if you are at fault for the accident, your collision coverage will reimburse you for the costs of repairing your car, minus the deductible. If you are not at fault, your insurance company may try to recover the amount they paid out from the other driver’s insurance company though a process called subrogation. If the company is successful, you will be reimbursed for the deductible.

Comprehensive: Reimburses you for loss due to theft or damage caused by something other than a collision with another car or object, such as fire, falling objects, missiles, explosion, earthquake, windstorm, hail, flood, vandalism, riot, or contact with animals such as birds or deer. Comprehensive insurance will also reimburse you if your windshield is cracked or shattered; some companies may waive the deductible on the glass portion of this coverage.

Uninsured and Underinsured Motorist Coverage: Reimburses you, a member of your family, or a designated driver if one of you is hit by an uninsured or hit-and-run driver. Underinsured motorist coverage comes into play when an at-fault driver has insufficient insurance to pay for your total loss. These coverages are required in 19 states, but available in all. It is important to purchase the same amount of coverage for uninsured/underinsured motorists as you have for liability to others.

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