Ford Escort Mk I RS1600 group 2 (1970)
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1968: Ford Escort Mk I Twin Cam
1970: Ford Escort Mk I RS1600
1974: Ford Escort Mk I RS2000
1983: Ford Escort Mk III RS1600i
1985: Ford Escort Mk III RS Turbo
1992: Ford Escort Mk V RS2000
1993: Ford Escort Mk V RS Cosworth
1996: Ford Escort Mk VI RS2000

Chassis identification codes

Specifications

947 units built
Click here for street version
Click here and here and here for engine info

1970
Cosworth BDB
1701cc, 83.5 x 77.62 mm
10.9:1
180 HP @ 7500 rpm
138 ft/lb @ 6500 rpm

Group/Class 2 Homologation number: 1605
Years active 1968-1970 Homologation start: 1/10/1970
Homologation end: 31/12/1982
Engine
Type Cosworth BDA (Belt Drive-A type), straight 4cyl, 4 stroke, petrol engine located front longitudinally
Capacity 1599 cc WRC: 1599 cc
Bore x Stroke (mm) 80.978 x 77.62
Compression ratio 10.0:1, 10.9:1
Output power - torgue 122 HP @ 6500 rpm
140 HP @ 6800 rpm, 160 HP
112 lbf @ 4000 rpm
106 lbf @ 5000 rpm
Main bearings 5 with 54mm bearings diameter, 6 bolt flywheel mount connecting rod length between centers 125.2mm, big end type bearing diameter 49.2mm, aluminium alloy piston with 44.6 mm piston height
Materials block: Ford Kent cast iron thin wall H711F-6K00G-AA block
1972: aluminium alloy H721F-6010-AA block with steel cylinder liners. 209mm deck height and 96mm bore spacing
cylinderhead: aluminium alloy
Cams/valves 2 overhead camshafts (DOHC), belt driven 4 valves/cyl. - 16 valves total, 31mm inlet valve diameter, 25.65mm exhaust valve diameter, 1 coil springs per valve
Aspiration natural, 2 x Weber 40 DCOE carburetors, 1975: 2 x Weber 36 DGAV carburetors
Ignition Lucas or Luminition electronic, firing order 1-3-4-2 12 V
Cooling system watercooled 6.1 lt
Lubrication system dry sump 4.6 lt
Transmission
Type rear wheel drive 4 or 5 (ZF) speed manual gearbox
Gearbox ratios constant: 1.579/1 (30/19)
1st: 2.97/1 (32/17)
2nd: 2.01/1 (28/22)
3rd: 1.39/1 (23/22)
4th: 1.000/1 (-)
R: 3.324/1 (40/19 x 19/22)
constant: 1.471/1 (28/21)
1st: 2.296/1 (31/18)
2nd: 1.697/1 (28/22)
3rd: 1.28/1 (24/25)
4th: 1.000/1 (-)
R: 2.807/1 (40/19 x 19/22)
constant: 1.333/1 (25/17)
1st: 2.84/1 (29/15) or
1st: 3.048/1 (29/14)
2nd: 1.78/1 (23/19)
3rd: 1.47/1 (21/21)
4th: 1.21/1 (19/26)
5th: 1.000/1 (-)
R: 1.74/1 (25/17 x 13/15 x 30/22) or
R: 2.145/1 (25/17 x 13/15 x 30/15)
Diffrential ratio 3.71/1 (34/9), 4.44/1 (40/9) hypoid spiral bevel gears limited slip rear differential, oil cooler for rear axle
Clutch dry, single plate, 203 mm diameter, or dual plate 184 mm diameter
Chassis-body
Type steel monocoque chassis with roll-cage. 2 door saloon steel bodyshell with steel bumpers, and extended wheel arches all around
Front suspension Macpherson strut with 1 lower transverse arm and stabilizer, coil springs 175 lb and telescopic shock absorbers
Rear suspension live axle with 4 locating longitudinal links, Panhard rod, multiple leaf springs 116 lb and telescopic gas shock absorbers
Steering system rack and pinion 2.7 turns lock to lock
Brakes front solid disks 244 or 254mm diameter and 2 piston calipers 54 mm diameter.
1971: Front ventilated discs 266 mm diameter.
1974: Front ventilated discs 296/304 mm diameter.
Rear drums 229mm diameter with 1 double piston caliper 19 or 22.8 mm diameter. 1971: Rear solid discs 254 mm diameter with 2 piston calipers.
dual circuit with servo
Dimensions
length: 3.978 m (156.6") width: 1.608 m (63.0") height: 1.320 m (52.0")
wheelbase: 2.430 m (96.0") front track: 1314.5 m (51.75") rear track: 1333.5 m (52.5")
Rims - tires 5.5 - 6 - 7J x 13"
Weight 790 kg
Fuel tank 41 or 90 lt
Drag coefficient 0.45

Results in WSCC

Season
Car entry Car number/ result
Buenos Ayres Dayt Sebring Brands Hatch Monza Spa Targa Florio Nurb Le Man Zeltweg Watkins Glen
Team 1000km 24h 12h 1000km 1000km 1000km 1000km 24h 1000km 6h
Triton Racing #69, dnt qualify
Statistics
Works Starts/finishes 1/0 1/0
Driver Team entries and car number
Triton Racing
John Howard 69
Raymond Gage 69

Results in WRC

Races

Works team: Ford Motor Co

Season

BDB engine
Entry Rally event
Driver
Codriver
Team M.C SVE
Entry list
S.R KEN A GRE RAC
entry list
Roger Clark
Jim Porter
Daily Express acci dent
Peter Warren
Michael Cotton
Team St. Bruno 19th
Jill Robinson
Francis Cobb
Benson & Hedges ?
Chris Sclater
Martin Holmes
?
Ian Grant
John Hughes
?
Statistics
Others starts/finishes 5/1 5/1

Information and articles

Article from 4T 471, 12/2009

Original article

Article from 4T 428, 5/2006

Original article

Ford_Escort_RS1600_-_Race_Retro_2008_03.jpg Source
M-6010-16K.jpg Source
1.6 lt Kent block

Drawings

Click here for parts
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