Ford Escort RS Turbo
1984 to 1990
CVH 4 cylinder
The Escort RS Turbo was the top sports model of this series based at first on the mk3 Ford Escort and later the Mk4.
The Escort RS Turbo was the top model of this series and was first presented in October 1984 at the Geneva Motor Show. Also designated as S1 (Escort RS Turbo Series 1) was at first limited to 5000 units and is available in white only. Available only in the 3-door.
A flat-bottomed piston was used to reduce the compression ratio of the 1.6-liter CVH engine to 8.3:1. The engine develops 97 kW with a boost pressure of 0.5 bar provided by a Garrett -T3 turbocharger (132 hp). A Bosch KE-Jetronic mixer was used to prepare the concoction. In some areas, a viscous limited-slip Ferguson differential was also available as an option.
The automobile came with all of the necessary features. This particularly sporty variant featured lowered suspension, front spoiler, visible air intakes on the hood, different door sills, wheel arches, and the spoiler painted in body colour exclusively for the Turbo, as well as different door sills, wheel arches, and the spoiler painted in body colour. There have been rumours that a few automobiles will be supplied in different colours. A black RS Turbo, which belonged to Lady Diana, Princess of Wales for a long time, has been proven passed down. It has the registration number C973HAR and is a right-hand variation.
The Escort RS Turbo S2 built from 1987 to 1990 was still the top model of the series with 97 kW (132 hp) and was now built-in unlimited quantities. Apart from the new body shape, the difference S2 (for Escort RS Turbo Series 2) in just a few details from its predecessor, because the mechanical engineering technique was almost unchanged.
The turbocharger from Garrett was now oil- and water-cooled, the gear had a higher ratio, a significantly larger brake system of the Sierra XR4 was used and there were new alloy wheels in the form shape of a directional turbine.
As with the predecessor a Recaro-Interior and a limited slip differential to the extensive standard equipment.
The S2 turbo was only available as a 3-door sedan. Simultaneously with the introduction of the new EFI engine with G-Kat for the XR3i, the turbo also received its front bumper with additional air intakes and the rear wing with down-hanging corners. updates to interior tinted glass and electric windows now standard. Available for the first time in multiple colours and by 1990 changes to trim later known as a 90s spec.
Ford Escort RS Turbo technical details and specifications (1984-1990)
No. of cylinders Type: 4/OHC
Capacity: 1597 cc
Compression ratio: 8.3:1
Firing order: 1-3-4-2
Output: 132hp @ 6000rpm
Suitable for unleaded petrol: Yes
Minimum octane rating: 98 RON
Fuel system Make: Bosch Type KE-Jetronic
Ignition coil Make: Bosch Type 0 221 122 366
Distributor Make: Bosch
Regulated voltage: 13.7-14.6 V
Maximum cranking amps: 140-172A
Starter motor Make: Bosch Type 0 001 211 239
Alternator Make: Bosch Type K1-45A
Ford Escort RS Turbo Service checks (1984-1990)
Spark plugs Original equipment: Motorcraft Type AGPR901
Electrode gap: 0.75 mm
Spark plugs Make Champion: Type C61YC gap 0.7mm
Spark plugs Make NGK: Type BCR8ES gap 1.0mm
Fuel system pump pressure: 5.6 to 6.0 bar
Radiator Thermostat opens: 85 °C
Engine oil grade: Normal climate 10W/30 SAE or 15W/20 SAE
Engine oil with filter: 3.8 litres
Manual gearbox oil total: 2.8 litres grade 80W SAE
Cooling system total: 6.9 litres
Drive belt size alternator: 11.9x793mm
Valve clearance INLET: Hydraulic
Valve clearance EXHAUST: Hydraulic
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