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Specifications: 1953 Rover 90 P4 series

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Rover
Sedan / Saloon
General Vehicle Specifications

Manufacturer:

  Rover
Country of Origin:
  UK
Designer:
  n/a
Years of Manufacture:
  1953
Date of Introduction:
  n/a
Number Built:
  n/a
Price at Introduction:
  n/a
Models:
  n/a
To Identify:
  n/a
RAC Rating:
  19.8
Body
Body Type:
 
No. of Doors:
  4
Front Track:
  1321, 52
Rear Track:
  1308, 51.5
Dimensions and Weight
Total Length:
  4530, 178.3
Total Width:
  1667, 65.6
Height at Kerb Weight:
  1619, 63.7
Wheelbase:
  2820, 111
Length Wheelbase Ratio:
  1.61
Ground Clearance:
  n/a
Kerb Weight:
  1486 Kg, 3276 Lb
Weight Distribution (Front):
  n/a
Engine
Capacity:
  2.6 Litre, 2638cc (160.981 cu in)
Type:
  6 Cylinder, OISE, 2 Valves Per Cylinder, 12 Valves in Total
Configuration:
  Front, Longitudinal
Sump:
  n/a
Fuel System:
  1 x <a href="/how_to_repair_su_carburettor.htm" target="_self">SU Carburettor</a>
Head:
  n/a
Bore & Stroke:
  73 × 105 mm, 2.87 × 4.13 in
Bore/stroke Ratio:
  0.7
Power:
  94.3 PS (93 bhp) (69.4 kW) at 4500 rpm
Specific Output :
  35.3 bhp per litre, 0.58 bhp per cubic inch
Torque:
  187 Nm (138 ft·lb) (19.1 kgm) at 1750 rpm
Specific Torque:
  70.89 Nm/litre
Bmep:
  890.8 kPa (129.2 psi)
Compression Ratio:
  7.5:1
Fuel Capacity:
  52.3 Litres, 11.5 UK Gal, 13.8 US Gal
Unitary Capacity:
  439.67
Coolant:
  Water
Intercooler:
  n/a
Aspiration:
  Normal
Compressor Type:
  n/a
Ignition and Electrical:
  n/a
Exhaust:
  n/a
Catalytic Converter:
  No
Main Bearings:
  4
Transmission / Gear Box
Transmission:
  4 Speed Manual With Overdrive
Manual, 4 speed floor mounted:
  n/a
Automatic, 3 speed floor mounted T-Bar:
  n/a
Final drive ratio:
  4.77
Drive:
  Rear Wheel Drive
Performance
0-50 mph (80 km/h):
  n/a
0-60 mph (100 km/h):
  n/a
0-100 mph (161 km/h):
  n/a
Standing ¼ mile:
  n/a
Standing Km:
  n/a
Top speed:
  n/a
Fuel Consumption:
  n/a
CO2 Emissions:
  n/a
Power-to-weight:
  62.58 bhp/ton
Steering and Brakes
Brake Type:
  Drum/Drum / Servo Assisted
Front:
  n/a
Rear:
  n/a
Park Brake:
  n/a
Steering:
  Recirculating Ball Steering
Turns Lock-to-Lock:
  3.800
Top Gear Ratio:
  0.77
Turning Circle:
  11.30 m
Suspension, Wheels and Tyres
Front Suspension:
  Independent Suspension / Coil Springs
Rear Suspension:
  Live Axle / Semi-Eliptic Leaf Springs
Wheels:
   
Front:
  n/a
Rear:
  n/a
Tyres :
   
Front:
  n/a
Rear:
  n/a
Interior
Instruments:
  n/a
Articles and Media

 

Rover P4

The Rover P4 series was a group of saloon automobiles produced from 1949 through to 1964 designed by Gordon Bashford. The P4 designation is factory terminology for the group of cars and was not in day-to-day use by ordinary owners, who would have said simply that they had a "Rover 90" and so on. The P4 was also the basis of the short lived Marauder car. The P4 was also the basis of the short lived Marauder car.

Engineering

The cars used a Rover engine in 4- or 6-cylinder form which came from the 1948 P3 and had overhead Valves for inlet and side Valves for exhaust. A four-speed manual transmission was used with a column-mounted shifter at first and floor-mounted unit from 1954. At first the gearbox only had synchromesh on third and top but it was added to second gear as well in 1953. A freewheel clutch, a traditional Rover feature, was fitted to cars without overdrive until mid-1959, when it was removed from the specifications, shortly before the range rearrangements announced for the London Motor Show in October that year. The cars had a separate chassis with Independent suspension by Coil Springs at the front and a live axle with half-elliptical leaf springs at the rear. The brakes on early cars were operated by a hybrid hydro-mechanical system but became fully hydraulic in 1950. Girling disc brakes replaced drums at the front from 1959. The complete body shells were made by the Pressed Steel company and featured aluminium/magnesium alloy (Birmabright) doors, boot lid and bonnets until the final 95/110 models, which were all steel to reduce costs. The P4 was one of the last UK cars to incorporate rear-hinged "suicide" doors..

P4 90

At the same time as the four-cylinder version was introduced, the top-end P4 90 with a more-powerful 2.6 litres (160 cu in) six appeared. This engine produced 90 hp (67 kW) and could reach 90 mph (145 km/h). When it was replaced by the P4 100 in 1959, 35,903 had been produced, making it the most popular variant in the series. Testing the Ninety in 1954 The Motor magazine recorded a top speed of 90.0 mph (144.8 km/h) and acceleration from 0–60 mph (97 km/h) of 18.9 seconds. A fuel consumption of 20.3 miles per imperial gallon (13.9 L/100 km; 16.9 mpg-US) was recorded. The test car cost £1297 including taxes.

Also see: Rover Reviews | The History of Rover

1953 Rover P4 90
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