Ford Escort Mk I RS1600 group 2 (1970)
 Source |
Development chain 1968: Ford Escort Mk I Twin Cam 1970: Ford Escort Mk I RS1600 1974: Ford Escort 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 |
Specifications
947 units built
Click here for street version
Click here and 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: Cosworth BDA cross flow aluminium alloy with hemispherical combustion chambers | |
| 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 | jacketed watercooled with pump, radiator, 299 mm diameter-8 blades fan and thermostat | 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
BDB engine
| Entry | Rally event | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Driver Codriver |
Team | M.C | SVE Entry list |
S.R | KEN | A | GRE | RAC Entry list |
|||||||
| Peter Warren Michael Cotton |
Team St. Bruno | 19th | |||||||||||||
| Ian Grant John Hughes |
37th | ||||||||||||||
| Roger Clark Jim Porter |
Daily Express | acci dent | |||||||||||||
| Jill Robinson Francis Cobb |
Benson & Hedges | dnf | |||||||||||||
| Chris Sclater (1599cc) Martin Holmes |
dnf | ||||||||||||||
| Statistics | |||||||||||||||
| Others starts/finishes | 5/2 | 5/2 | |||||||||||||
Information and articles
Article from 4T 471, 12/2009
Article from 4T 428, 5/2006
Source
Source1.6 lt Kent block
Drawings
Click here for parts
page revision: 313, last edited: 06 Sep 2021 06:47