Ford Escort Mk V RS Cosworth group A (1993)
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Home » Rally Cars » Ford Escort Mk V RS Cosworth
sx1.jpg Development chain
1968: Ford Escort Mk I Twin Cam
1970: Ford Escort Mk I RS1600
1975: Ford Escort Mk II 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
Development level
WRC
Group A
Group N
Production

On board: see video
With Gigi Galli: see video


Specifications

Engine service manual
See group N preparation manual
Group/Class A/8 Homologation number: A 5466
Years active 1993 - 1996 Homologation start: 1/1/1993
Homologation end: 31/12/2000
Engine
Type Cosworth YBT based on Pinto block, straight 4cyl, 4 stroke, petrol engine located front longitudinal
Capacity 1994.4 cc WRC: x 1.7 = 3390.5 cc
Bore x Stroke (mm) 90.8 x 77.0
Compression ratio 7.5:1
Output power - torgue 310 HP / 6250 rpm 45.9 kgm (450 Nm) / 4500 rpm
50.0 kgm (490 Nm) / 3500 rpm
Main bearings 5 of 57mm diameter connecting rod distance between centers 128.5mm, big end bearing diameter 55mm
Materials block: cast iron, 220mm height cylinderhead: aluminium alloy, 138mm height
Cams/valves 2 overhead camshafts (DOHC), belt driven. Blue camshaft cover 4 valves/cyl. - 16 valves total. 35.25mm inlet valve diameter, 31.25mm exhaust valve diameter. 22.5o angle between inlet valve axis and vertical, 22.5o angle between exhaust valve axis and vertical. 1 coil spring per valve
Aspiration Garrett T35 turbocharger (high temperature nickel/iron alloy 59mm diameter, aluminium compressor 69mm diameter) with air/water intercooler and 38mm turbo restrictor fitted, Ford EEC IV or (1994+) Weber-Marelli IAW P8 multipoint electronic fuel injection.
1995+: 34mm turbo restrictor fitted
pressure: 1.4 - 2.2 bar
Ignition Weber Marelli electronic, firing order 1-3-4-2
Cooling system watercooled 7.5 lt
Lubricating system wet sump with 1 oil cooler 4.75 lt
Transmission
Type four wheel drive Ford MT75 5 speed or Ford MS92/1 7 speed manual gearbox or 1995+: X-trac 6 speed sequential gearbox
Gearbox ratios constant input: 1.320/1 (33/25)
1st: 3.608/1 (41/15)
2nd: 2.081/1 (41/26)
3rd: 1.363/1 (32/31)
4th: 1.000/1 (-)
5th: 0.828/1 (27/43)
R: 3.256/1 (37/15)
1st: 2.071/1 (29/14)
2nd: 1.529/1 (26/17)
3rd: 1.263/1 (24/19)
4th: 1.047/1 (22/21)
5th: 0.895/1 (17/19)
6th: 0.760/1 (19/25)
7th: 0.653/1 (17/26)
R: 2.143/1 (30/21 x 21/14)
1st: 2.071/1 (29/14)
2nd: 1.529/1 (26/17)
3rd: 1.200/1 (24/20)
4th: 0.955/1 (21/22)
5th: 0.792/1 (19/24)
6th: 0.654/1 (17/26)
7th: 0.536/1 (15/28)
R: 2.143/1 (30/21 x 21/14)
1995+, 1st: 1.800/1 (27/15)
2nd: 1.263/1 (24/19)
3rd: 0.955/1 (21/22)
4th: 0.783/1 (18/23)
5th: 0.667/1 (16/24)
6th: 0.583/1 (14/24)
R: 2.143/1 (30/21 x 21/14)
1997+, 1st: 3.000/1 (36/12)
2nd: 2.125/1 (34/16)
3rd: 1.611/1 (29/18)
4th: 1.316/1 (25/19)
5th: 1.118/1 (19/17)
6th: 0.960/1 (24/25)
R: 2.143/1 (32/14 x 14/12)
Diffrential ratio Transfer box: 1.000/1 (31/31), 1.263/1 (24/19), 1.389/1 (25/18), 1.529/1 (26/17), 1.600/1 (24/15), 1.643/1 (23/14), 1.688/1 (27/16). 1995+: 1.611/1 (29/18)
1997+: 1.200/1 (24/20), 1.150/1 (23/20), 1.100/1 (22/20), 1.056/1 (19/18), 1.045/1 (23/22), 1.000/1 (24/24), 0.957/1 (22/23), 0.962/1 (25/26), 0.952/1 (20/21), 0.909/1 (20/22), 0.900/1 (18/20), 0.857/1 (24/28), 0.850/1 (17/20), 0.815/1 (22/27), 0.800/1 (20/25), 0.778/1 (21/27)
Front/rear: 3.615/1 (47/13), 3.917/1 (47/12), 4.625/1 (37/8), 4.429/1 (37/9), 3.818/1 (42/11), 3.636/1 (40/11), 3.417/1 (41/12), 3.250/1 (39/12)
helical gears input epicyclical center differential with viscous coupling connected to transfer box, with 2 outputs: 1st direct output to hypoid bevel gears, ZF limited slip or Torsen rear differential. 2nd output via hyvo chain in parallel shaft to hypoid bevel gear limited slip front differential. 30%-70% to 50%-50% front/rear torque distribution.
1995+: active hydro/electronically controlled front differential
Clutch dry, double disk 242mm diameter
Chassis-body
Type Steel monocoque chassis of Ford CT120 platform with roll-cage. Front and rear steel subframes with rectangular tubes. 3 door liftback steel bodyshell with polyurethane bumpers and plastic rear spoiler
Front suspension macpherson strut with lower transverse arms and stabilizer, coil springs and telescopic gas shock absorber
Rear suspension trailing/semi-trailing arm, coil springs, telescopic gas shock absorber and anti-roll bar
Steering system rack and pinion with hydraulic power assistance. 1997+: electric power assistance 2.4 turns lock to lock
Brakes front ventilated disks with 278mm disk diameter and 1 cast iron piston caliper, or 270-380mm disk diameter and 4/6/8 aluminium piston calipers. Rear ventilated disks with 273mm disk diameter and 1 cast iron piston caliper, or 270-380mm disk diameter and 4/6/8 aluminium piston calipers. Optional Aluminium MMC alloy 6 piston calipers front/rear dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.211 m (165.8") width: 1.742 m (68.6") height: 1.425 m (56.1")
wheelbase: 2.552 m (100.5") front track: 1.490 m (58.7") rear track: 1.505 m (59.3")
Rims - tires gravel 7" - 8" x 16" - 17"
tarmac: 8" - 9" x 17"
Pirelli P Zero 225/45ZR16, or michelin 210/610-18"
Weight 1220 kg
Weight/power 4.1 kg/HP
Fuel tank 70 lt

Results in WRC

Statistics

1993 1994 1995 1996 1997 1998 1999 2000 Total
Works
Races/wins 11/4 9/2 10/1 30/7
Entries/ finishes 23/13 27/15 22/14 72/42 (58.3%)
Others
Races/wins +1/1 +2 11 +4/1 9 10 10 9 56/2
Entries/ finishes 19/9 32/11 58/24 52/25 36/15 23/13 22/8 18/5 260/110 (42.3%)
Total WRC results
Races/wins 12/5 11/2 11 14/2 9 10 10 9 86/9
Entries/ finishes 41/22 59/26 58/24 74/39 36/15 23/13 22/8 18/5 332/152 (45.8%)
Total points 150 151 86 148 9 1 545
(6.337 per race)
(1.642 per entry)

Races

Works team: Ford Motor Co

Season
Entry Rally event
Driver
Codriver
Team M.C SVE POR KEN T.dC GRE ARG N.Z FIN AUS S.R ESP RAC
Miki Biasion
Tiziano Siviero
works 3rd 2nd 7th 1st 2nd acci dent eng ine eng ine 4th
François Delecour
Daniel Grataloup
works 2nd 1st 1st eng ine 2nd 3rd acci dent 1st 4th
Mikael Ericsson
Tina Thörner
works clu tch
Sebastian Lindholm
Timo Hantunen/ Timo Hakala
works eng ine 9th* acci dent
Fernando Peres
Ricardo Caldeira
works acci dent
Malcolm Wilson
Bryan Thomas
works acci dent acci dent * * 3rd
* * *
Robbie Head
Campbell Roy
Michelin Pilot Team Ford acci dent
Carlos Menem, Jr
Victor Zucchini
Mike Little Prepa rations 5th
Franco Cunico
Stefano Evangelisti
Ford Italia 1st
Patrick Snijers
Dany Colebunders
Bastos Ford Credit 2nd
Holger Helle
Karsten Richardt
28th
Guy Kridel
Alf Gaspar
dnf
Bernard Béguin
Jean-Paul Chiaroni
6th
Simon Jean-Joseph
Charley Pasquier
head gasket
Brian Stokes
Jeff Judd
wheel bearing
'Grizzly'
'Bull'
13th
Raffaello Fidanza
Gabriella Vasarri
dnf
Jeff Dewitt
Tom Johnston
56th
Penny Mallory
Sue Mee
acci dent
Peter Vassallo
Trevor Alexander
eng ine
Rob Barry
Mike Armistead
dnf
Christopher Rees
Malcolm Heymer
acci dent
Total points
()
150 17 19 19 10 15 9 2 8 19 17 15
Statistics
Works Starts/finishes 23/13 2/2 3/0 3/2 2/2 2/1 1/1 2/1 2/1 2/0 2/2 2/1
Others Starts/finishes 19/9 2/1 2/1 1/1 1/0 2/1 4/3 7/2

*Ford Team Finland entry
* * Private entry
* * * Michelin Pilot Team Ford entry


1992_Ford_Escort_RS_Cosworth_rally_010_4636.jpg Source

Information and articles

Article from 4T 274, 7/1993

Click here

Article from Auto Express (greece) 283, 2/1991

Click here

Article from 4T 270, 3/1993

Click here
gear.jpg Source
MS92 gearbox gears

Drawings

fordescortrscosworth.jpg Source
fordescortrscoswort1993.jpg Source
ford_escort_cosworth_by_repoman.jpg Source
Ford-Escort-RS-Cosworth-pic.jpg Source
ford_escort_rs_cosworth_wrc_1996.jpg Source

Suspension

Source
WRC_front_xmember.jpg
WRC_rear_suspension.jpg

Brakes

09.7771.10.jpg Source
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