FORD SIERRA SAPPHIRE 4x4 RS COSWORTH : eBay Guides

This is a quick & resourceful guide with general information on the 4x4 Sierra Cosworth. The content has been compiled from knowledgeable & reliable sources. All topics have been adjusted by myself and put into a suitable easy to read order, ensuring it is of as much help as possible to all ebayers and potential Cosworth fans/owners.

Sierra Sapphire 4x4 RS Cosworth

• Cosworth YBG 1993cc DOHC, 16 Valve, Garret T3 Turbo, producing 224BHP
  
• Redtop cam cover on early models and Greentop cam cover on later spec Facelift models.
  
• Bore/stroke: 90.82 mm/76.95 mm
• Revised head and cylinder block
• Improved cast iron exhaust manifold
• 4WD Cosworth model's intercooler was enlarged by 25% to further aid charge cooling
• Catalytic converter
• Ford EEC IV Management
• Fuel injection used Weber/Marelli equipment
• Max torque: 214lb/ft @ 3,500 rpm = (290nm)
  

• 4 wheel drive system split 34:66 (front:rear)
  
• Ferguson patented 4x4 transmission with Ford MT75 5-speed Manual Gearbox
  
• Internal ratios: 1st, 3.62; 2nd, 2.08; 3rd, 1.36; 4th, 1:1; 5th, 0.83
• Final drive: 3.62:1, 22.24 mph per 1,000 rpm in 5th
• Single dry plate clutch

• Hydraulic power assistance, rack and pinion, lock-to-lock: 2.6 turns.
• Front: Via MacPherson struts, unique RS spring rates, monotube gas damping, thickened (30 mm) anti-roll bar.
• Rear: Separate springs and single tube gas dampers, plus 18 mm rear anti-roll bar, spring rates as per previous 2WD Cosworth.

• Front: 278 x 24 mm (10.94 x 0.94 in).
• Rear: 273 x 20 mm (10.74 x 0.79 in).
• System: Four wheel ventilated discs with ABS electronic anti-lock braking and hydraulic assistance.

• Wheels: RS 7x15" alloys (early style alloys were known as Lattice wheels & later style alloys were known as Sharktooths/Snowflakes)
• Tyres: Bridgestone ER90 205/50 ZR15

• 4 Door Saloon
• Cd: 0.322. 1
• Construction: Unitary steel with RS polyurethane panels including front and rear spoilers, side sills and bonnet louvres. Dimensions: Overall length: 4,494 mm (176.9 in); width, 1,698 mm (66.8 in); height, 1,376 mm (54.2 in); wheelbase, 2,608 mm (102.7 in); kerb weight: 1,280 kg (2,816 lb), add 10 kg (22.05 lb) for Cat model.

• Diamond White
• Ebony Black
• Radiant Red

• Metallic Flint Grey
• Metallic Magenta Red
  
• Metallic Nouveau Red
• Metallic Moondust Silver
• Metallic Moonstone Blue
• Metallic Mallard Green (there is only one factory car in this colour known to date)
  
• Metallic Smokestone Blue

• Raven Leather Recaro Interior
• Air Conditioning
• Onboard Fuel Computer
• Electric Tilt & Slide Sunroof
• Metallic Paintwork with a Deep Lustre Lacquer Coating
  

• Max speed: 150mph
• Acceleration: 0-60mph > 6.6secs
• Fuel consumption: 22.1mpg urban - 37.2mpg at constant 56mph - 30.4mpg at 75mph

* Please note, This guide is for reference only. Please do not solely depend on information provided within this guide. Pictures are from the 4x4 Cosworth Brochure. New information will be added where possible. Although all information above is believed to be correct at the time of submission, it is possible that there may be errors within. If any errors are spotted, please do not hesitate to notify the guide writer regarding any mistakes. Appropriate actions will be taken to keep this page updated and correct at all times. Thank you for reading  : )