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Last update: 11.11.2013
Sale type: Fixed price listing
Technical specifications, photos and description:
Before I go any further if you have any questions or need anymore info on this car you can give me a call at 219 608 9555 Pat This top-end P4 90 came with a more-powerful 2. 6 litres (160 cu in) six cylinder. 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. 03 had been produced. nbsp;of those. only 3870 in 1959 were P4 90 models 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.  An owner of a Ninety at the time noted that the engine was so quiet when waiting at traffic lights one sometimes wondered if it had stopped.
Just a few specs on these cars for you. Pluses of the 1950-1964 Rover P4 Series:Cheap to buyMany parts still availableQuality materialsSolid and durableStrong chassisWide choice of enginesRare in the U. S.
The Rover's design. level of engineering. build quality. and general air of refinement earned it the sobriquet “The Poor Man's Rolls-Royce”. although “poor” was a relative term -- a Rover 90 cost over £1500 (about $4200 U. S. ) in 1959.
Where they are today OR=On Road195990610901395Wagga Wagga. NSW. AustraliaOR195990610902211Buckinghamshire. EnglandOR195990610902243Dumfries. ScotlandOR195990611900261Brisbane. AustraliaOR195990611900267London. EnglandOR195990613900055Moncton. New Brunswick. CanadaUR195990613900117Aurora. Ontario. CanadaOR195990613900132Knoxville. Tennesee. USAOR
The Rover P4 interiors were trimmed very luxurious with full leather seats. wool carpet and a lot of wood all round the interior; all to the best British traditions.
The Rover P4 was not called this way by it's owners those days. P4 was a factory name. Owners spoke of their Rover 75 or Rover 90. Others nicknamed the car lovingly 'Auntie'.
MORE TECHNICAL DATA
P4 90 1953 - 1959Engine6 cylinder in line Bore and Stroke73. 025 mm x 105 mm Capacity2638 cc Valve arrangementOverhead inlet. side exhaust Main bearings4 Compression ratio6. 73:1 (7. 5:1 post 1956) CarburettorSingle SU Power90 bhp @ 4. 00 rpm (93 bhp @ 4. 00 rpm post 1956) Torque130 lb ft @ 1. 00 rpm (138 lb ft @ 1750 rpm post 1956) Gearbox4 speed manual gearbox with freewheel (Overdrive optional 1956 on) Gearbox ratios3. 37. 2. 04. 1. 37 & 1:1 Reverse 2. 97:1 Overdrive 0. 77:1 Axle ratio4. 3:1 (3. 9:1 optional on freewheel models) SuspensionFront independent wishbones and coils. rear semi elliptic SteeringRecirculating ball worm and nut with variable ratio BrakesGirling hydraulic (Servo assisted on overdrive cars) Brake size and type11 inch diameter drums front and rearDimensionsTrack front/rear52 / 51. 5 inches Wheelbase111 inches Overall length178. 25 inches Overall width65. 325 inches Overall height63. 25 inches Unladen weight3. 67 lb
This page illustrates some of the more interesting or unusual points of the P4's technical design. The pictures are taken from a 1954 Rover brochure.
Looking at the right-hand side of the engine. the inlet manifold cast in unit with the cylinder head can be seen. This engine is from a "90". so it has a single SU carburettor. Note the flexible tubeconnecting the top of the float chamber with the air inlet elbow. This is part of an economy device that lowers the atmospheric pressure on the fuel in the float chamber under conditions of light load and small throttle opening.
The fittings visible on the sump (above and to the left of the drain plug) are the removable oilfilter screen and the sender for the electrical oil level gauge. (Pressing a button on the facia causes the fuel gauge to read the oil level in the sump. ) The small plate on the upper shoulder of the bell housing gives access to the timing marks on the flywheel.
On the left-hand side of the engine. the black cover beneath the exhaust manifold is removed to adjust the exhaust valve rockers. The large full-flow oil filter. which replaced the Wipac bypass unit of earlier models. takes the following elements: Rover 246262. Purolator MF141. GUD GP504. Unipart GFE111. Ryco R296P. (This is the same filterelement used by 6-cylinder Land Rover engines. )
All P4 engines (apart from that of the "80" model) have an Inlet Over Exhaust (IOE) or "F-head" valve layout. This arrangement. also employed by Rolls-Royce. allows an improved combustion chamber shape and was a feature of all Rover 6-cylinder engines.
The P4 cars were built on a massive ladder-type box-section chassis. Immensely rigid. this contributes to the Rover's feeling of imperturbable solidity.
The two-piece propeller shaft's centre universal joint bearing is supported by a spring to take its weight off the rubber mounting bushes. The grease fittings on the universal joints and sliding spline are the only points requiring greasing on the car.
The front suspension uses unequal length top and bottom control arms together with radius rods. The swivel pins use ball bearings and are lubricated by heavy oil. Many P4s in Canada have been seen with grease nipples replacing the filler plugs on the oil reservoirs. However. grease must not be used to lubricate the swivel pins!
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