Ford Escort Mk I Twin Cam group 2 (1968)
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Home » Rally Cars » Ford Escort Mk I Twin Cam
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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

1263 units built
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Click here and here for street version

Group/Class 2 Homologation number: 1524
Years active 1968-1970 Homologation start: 1/3/1968
Homologation end: 1/1/1977
Engine
Type Ford Lotus Twin Cam, 116E block, straight 4cyl, 4 stroke, petrol engine located front longitudinally
Capacity 1558 cc WRC: 1558 cc
Bore x Stroke (mm) 82.55 x 72.75
Compression ratio 9.8:1
Output power - torgue 115 HP @ 6000 rpm
140 HP @ 6800 rpm		 155 Nm @ 4500 rpm
106 lbf @ 5000 rpm
Main bearings 5 with 54mm bearings diameter, 6 bolt flywheel mount connecting rod length between centers 121.9mm, big end type bearing diameter 49.2mm, aluminium alloy piston with 39.5 mm piston height
Materials block: Ford Kent grey cast iron thin wall block (casting 681F-6015G or 701M-6015-EA). 198.2 mm deck height, with 4mm cylinder wall thickness cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers
Cams/valves 2 overhead camshafts (DOHC), chain driven 2 valves/cyl. - 16 valves total, 39mm inlet valve diameter, 33.7mm exhaust valve diameter, 2 coil springs per valve
Aspiration natural, 2 x Weber 40 DCOE carburetors with AC mechanical fuel pump
Ignition Lucas or Luminition electronic, firing order 1-3-4-2 Battery: 12 volt 38 Ah, Lucas C40/1 22-amp d.c. generator
Cooling system jacketed watercooled with pump, radiator, 280 mm diameter-2 blades fan and thermostat 5.8 lt
Lubrication system wet sump, 1970: 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), 4.1/1 (33/8), 4.7/1 (33/7), 4.9/1 (34/7), 5.3/1 (37/7), 5.5/1 (39/7), 5.7/1 (34/6), 6.1/1 (37/6), 3.7/1 (37/10), 4.63/1 (37/8), 5.14/1 (36/7), 5.83/1 (35/6), 3.89/1 (35/9), 4.0/1 (36/9), 4.11/1 (37/9), 4.37/1 (35/8) hypoid spiral bevel gears limited slip rear differential
Clutch Borg and Beck dry single plate, 203 mm diameter, 1970: dry 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, multi leaf semi-elliptic springs and telescopic shock absorbers
Rear suspension live axle with 4 locating longitudinal links, Panhard rod, single or multiple leaf springs and telescopic gas shock absorbers
Steering system rack and pinion 2.7 turns lock to lock
Brakes front Girling solid disks 244mm diameter and 2 piston calipers 54 mm diameter, 1970: 254 mm disc diameter. Rear drums 229mm diameter with 1 double piston caliper 19 mm diameter, 1971: 22.8 mm piston caliper diameter dual circuit with Girling vacuum 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 750 kg
Fuel tank 41 or 90 lt
Drag coefficient 0.45

Results in WRC

Races

Works team: Ford Motor Co

Season
Entry Rally event
Driver
Codriver		 Team M.C SVE
Entry list		 S.R KEN A GRE RAC
Entry list
Roger Clark
Jim Porter		 works 5th
Timo Mäkinen
Henry Liddon		 works 7th eng ine tran smis sion
Hannu Mikkola
Gunnar Palm		 works gear box oil pres sure tran smis sion
Ove Andersson
Elizabeth Andersson/ Jim Porter		 works oil pres sure ther mos tat 3rd
Jean-François Piot
Jean Todt		 Ford France diffe rential 3rd 4th
Hodson
Alen		 dnf
Ingemar Frohm
Bo Ottosson		 8th
Chris Sclater
Peter Valentine		 OTL
Bert Gustavsson
Lars Mattsson		 dnf
Per Sandager
Otto Kristensen		 dnf
Gert Jönsson
Jan Svensson		 dnf
Sten Bergström
Kent Böe		 dnf
Leif Asserwall
Jan-Åke Siljeström		 dnf
Adrian Boyd
Beatie Crawford		 4th
Franz Wurz
Walter Zögl		 7th
Robert Zelenka
Richard Zelenka		 8th
Titus Maier-Kaibic
Kurt Jauk		 OAMTC dnf
Brian Culcheth
Johnstone Syer		 8th
Tony Fowkes
Peter O'Gorman		 15th
Nigel Rockey
Ron Channon		 16th
Chris Beynon
Lyn Andrews		 17th
Paul Appleby
David Shields		 18th
Paul Faulkner
Michael Peters		 23rd
John Peniston
Melvyn Long		 30th
George Beever
Tony Mason		 33rd
Robert Bennett
Stuart Harrold		 44th
Colin Barrell
Brian Rann		 47th
Ian White
Richard Hitchens		 50th
Peter Callow
Peter Bradford		 52nd
David Bell
Michael Giles		 54th
Geoffrey Thomas
David Jenkins		 59th
Mike Bailey
Joe Minto		 66th
Jim Bullough
Don Barrow		 acci dent
Miss Bronwyn Burrell
Rob Morgan		 dnf
Mike Hibbert
Derek Tucker		 dnf
Robert Bean
Paul Stephens		 dnf
Ingemar Frohm
Torsten Palm		 dnf
Jeffrey Churchill
John Thomas		 dnf
Frank Pierson
Raymond Evans		 dnf
John Rhodes
Frank Webber		 dnf
John Heppenstall
Hywel Thomas		 dnf
John Booth
Graham Booth		 dnf
Thomas Williams
Stuart Watts		 dnf
Tom Burke
Dan O'Sullivan		 dnf
James Jones
David Williams		 dnf
Roger Clifft
Neil Wilson		 dnf
Roger Drummond Walker
Maxwell Kingsland		 dnf
Michael Dolan
James O'Brian		 dnf
Wilfred Jones
John Gittins		 dnf
Trevor Shaw
Fredrick Humphrey		 dnf
Paul Kerridge
William Barlow		 dnf
William Webber
Alan Whitman		 dnf
Charles Drewitt
David Evans		 dnf
William Crawford
George Dean		 dnf
Melvyn Lonsdale
David Otridge		 dnf
John Simpson
Anthony Newsum		 dnf
Andrew Frost
Robert Binns		 dnf
James Hannah
Alex Little		 dnf
Desmond Fitzgerald
Richard O'Brien		 dnf
Michael Jackson
Christopher Cammack		 dnf
Ronald Harrison
Robert Davis		 dnf
Mallcolm Wise
Douglas Blair		 dnf
David Warren
Edward Norman		 dnf
Erik Nosek
Ronald Boughen		 dnf
William Coleman dnf
Total points
()		 53 10 3 22 15 3
Statistics
Others starts/finishes 73/23 5/2 10/1 6/4 2/2 50/14
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Drawings

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page revision: 106, last edited: 06 Sep 2021 06:50
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