Toyota Celica ST185 4WD Turbo group A (1992)
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Home » Rally Cars » Toyota Celica ST185 4WD Turbo
st185gt42.jpg Development chain
1971: Toyota Celica TA22
1974: Toyota Celica RA20
1978: Toyota Celica RA40 GT2000
1988: Toyota Celica ST165 GT4
1992: Toyota Celica ST185 4WD Turbo
1994: Toyota Celica ST205 GT4		 Development level
Group A
Group N
Production

In Safari rally '94: see video
In rallies: see video

Specifications

All about Toyota twin cam
Group/Class A/8 Homologation number: A5451
Years active 1992 - 1994 Homologation start: 1/1/1992
Homologation end: 31/12/2001
Engine
Type Toyota 3S-GTE, straight 4 cyl, 4 stroke located front transverse with 24o rear inclination
Capacity 1998 cc WRC: x 1.7 = 3397 cc
Bore x Stroke (mm) 86.0 x 86.0
Compression ratio 8.5:1
Output power - torgue 300 HP / 5600 rpm 46.9 kgm (460 Nm) / 4400 rpm
Main bearings forged steel crankshaft with 5 main bearings 59mm diameter, big end journals diameter 48mm connecting rod length between centers 138mm, big end bearing tunnel diameter 51mm, aluminium alloy piston with 35.1mm compression height
Materials block: block: cast iron, 216mm deck height, 273mm height cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers, 119mm height
Cams/valves dual overhead camshafts (DOHC), belt driven, equiped with T-VIS 4 valves/cyl - 16 valves total. 33.7mm inlet valve diameter, 29.2mm exhaust valve diameter. 25o angle between inlet valve axis and vertical, 25o angle between exhaust valve axis and vertical
Aspiration Toyota CT26 (10 blades Nickel alloy turbine 52/67.7mm in/out diameter, 10 blades aluminium compressor 46.4/65.3mm in/out diameter) turbocharger with twin entry cast iron turbine housing, dual wastegate ports. Air/water intercooler with water/air intercooler radiator, water pump and 5 lt water tank. 38mm turbo restrictor fitted. Bosch L-jetronic multipoint electronic fuel injection.
1995+: 34mm turbo restrictor fitted.		 pressure: 1.5 bar
Ignition electronic, 1-3-4-2 firing order
Cooling system jacketed watercooled with pump, radiator, 2 fans (7 blades-300mm and 5 blades-280mm) and thermostat 6.5 lt
Lubricating system wet sump with 1 oil cooler 4.5 lt
Transmission
Type four wheel drive Toyota E151F, 5 speed or X-Trac 6 speed manual gearbox
Gearbox ratios 1st: 3.583/1 (43/12)
2nd: 2.045/1 (45/22)
3rd: 1.333/1 (40/30)
4th: 0.972/1 (35/36)
5th: 0.731/1 (30/41)
R: 3.545/1 (39/23 x 23/11)		 X-Trac, 1st: 3.417/1 (41/12)
2nd: 2.571/1 (36/14)
3rd: 2.000/1 (32/16)
4th: 1.722/1 (31/18)
5th: 1.476/1 (31/21)
6th: 1.286/1 (27/21)
R: 3.083/1 (37/14 x 14/12)		 X-Trac, 1st: 3.417/1 (41/12)
2nd: 2.571/1 (36/14)
3rd: 2.000/1 (32/16)
4th: 1.650/1 (33/20)
5th: 1.375/1 (33/24)
6th: 1.192/1 (31/26)
R: 3.083/1 (37/14 x 14/12)		 1993, X-Trac, 1st: 4.000/1 (48/12)
2nd: 2.714/1 (38/14)
3rd: 2.000/1 (38/19)
4th: 1.545/1 (34/22)
5th: 1.281/1 (29/23)
6th: 1.069/1 (31/29)
R: 3.083/1 (37/14 x 14/12)		 1994, X-Trac, 1st: 3.167/1 (38/12)
2nd: 2.400/1 (36/15)
3rd: 1.941/1 (33/17)
4th: 1.650/1 (33/20)
5th: 1.400/1 (28/20)
6th: 1.217/1 (28/23)
R: 3.083/1 (37/14 x 14/12)		 1996, X-Trac, 1st: 3.417/1 (41/12)
2nd: 2.571/1 (36/14)
3rd: 2.000/1 (32/16)
4th: 1.545/1 (34/22)
5th: 1.281/1 (29/23)
6th: 1.069/1 (31/29)
R: 3.083/1 (37/14 x 14/12)
Diffrential ratio Center: 4.286/1 (60/14), 3.933/1 (59/15), 4.250/1 (51/12), 4.214/1 (59/14), 4.167/1 (50/12), 4.143/1 (58/14), 4.083/1 (49/12), 4.071/1 (57/14), 4.000/1 (48/12), 3.917/1 (47/12), 3.867/1 (58/15), 3.846/1 (50/13), 3.833/1 (46/12), 3.800/1 (57/15), 3.769/1 (49/13), 3.750/1 (45/12), 3.733/1 (56/15), 3.692/1 (48/13), 3.667/1 (44/12), 3.563/1 (57/16), 3.500/1 (56/16), 3.438/1 (55/16), 3.412/1 (58/17), 3.294/1 (56/17), 3.176/1 (54/17), 3.056/1 (55/18), 2.947/1 (56/19), 2.944/1 (53/18), 2.842/1 (54/19), 2.750/1 (55/20), 2.571/1 (54/21), 3.167/1 (57/18).
Transfer box x rear differential: 14/41x41/14, 9/35x35/9, 11/43x43/11, 12/35x35/12		 Helical gears center differential with, one side-1st output to internally located front torsen differential, and other side 2nd output to transfer box. Viscous coupling clutch electronically controls torque spliting between front differential housing and transfer box, using homocentric shafts. Spiral bevel gears transfer box transfers torque to, hypoid spiral bevel gear, torsen rear differential. (see info)
Clutch dry, single plate 236mm diameter, double disk
Chassis-body
Type Steel monocoque ST185 chassis with front/rear cross member subframes for suspension. 40kg (1993: 42kg) steel 25CrMo4 (D40x1.5 + D40x1mm) roll-cage. 3 door liftback steel bodyshell with steel front/rear bonnets, steel doors, polypropylene front bumper, urethane rear bumper and plastic rear spoiler
Front suspension macpherson strut with lower 'L' wishbone, coil springs (gravel 662 lb/in, tarmac 706 lb/in), telescopic gas shock absorbers and anti-roll bar
Rear suspension macpherson strut with one trailing link and two lateral links, coil springs (gravel 353 lb/in, tarmac 662 lb/in), telescopic gas shock absorbers and anti-roll bar
Steering system rack and pinion with hydraulic power assistance 16.1/1, 12.1/1, 13.7/1 ratio
Brakes front ventilated disks 277mm diameter with 1 cast iron piston caliper 57.2mm diameter, rear solid disks 288mm diameter with 1 cast iron piston caliper 34.9mm diameter.
Front/rear ventilated discs 278/292/295/296/305/310/314/315/320/327/328/330/332/343/355mm diameter.
Front 4 or 2+2 aluminium AP piston calipers 35/38/42.8/44.5/(2x41.3+2x44.5)/(2x41.3+2x38.1/(2x35+2x38)mm diameter.
Rear 4 or 2+2 aluminium AP piston calipers 35/38.1/42.8/(2x41.3+2x38.1)/(2x35+2x38)mm diameter
Front/rear 4 aluminium piston calipers 25.4mm diameter, 2 aluminium piston calipers 34.9/31.7/38/1/35/41.3/42.8/44.5mm diameter, Brembo 2+2 aluminium piston calipers (2x36+2x40)/(2x38+2x44)/(2x30+2x34)/(2x34+2x38)mm diameter, Alcon 4 aluminium piston calipers 25.4/31.7/35/38/41.3mm, or Alcon 2+2 aluminium piston calipers (2x35+2x38)/(2x36+2x40)/(2x38+2x41.2)/(2x38+2x44)/(2x41.3+2x44.5)mm diameter		 dual circuit with Aisin or JKC vacuum servo, adjustable ratio split front to rear. Stone scraper, disc protection shield fitted, air cooling ducts for discs
Dimensions
length: 4.410 m (173.6") width: 1.760 m (69.3") height: 1.300 m (51.2")
wheelbase: 2.545 m (100.2") front track: 1.491 m (58.7") rear track: 1.456 m (57.3")
Rims - tires 6.5 - 7.5" x 15" - 16" Pirelli (1992), michelin (1993+), 205/70/15
Weight 1120 kg
Fuel tank 68, 80 lt
Drag coefficient 0.31

Results in WRC

Statistics

1992 1993 1994 1995 1996 1997 1998 1999 Total
Works
Races 11/5 11/7 10/5 1/1 33/18
Entries/ finishes 22/16 27/22 25/18 1/1 75/58 (77.3%)
Others
Races +2/2 +7 9 5 2 2 27/2
Entries/ finishes 2/0 5/3 12/6 16/8 14/0 8/5 5/1 2/0 65/33 (50.8%)
Total WRC results
Races 11/5 12/7 12/7 9/1 9 5 2 2 60/20
Entries/ finishes 24/16 32/25 37/24 19/11 14/10 8/5 5/1 2/0 140/91 (65%)
Total points 128 188 171 53 15 10 565
(9.417 per race)
(4.036 per entry)

Races

Works team:

  • Works: Toyota Castrol Team
  • Works1: Toyota Team Europe
Season
Entry Rally event
Driver
Codriver		 Team MC (SVE)
Entry list		 POR KEN TdC GRE (NZ) ARG FIN AUS SR (CdI) (ESP) RAC
Carlos Sainz
Luís Moya		 works1 2nd 3rd 1st 4th acci dent 1st 2nd 3rd 1st 1st
Markku Alén
Ilkka Kivimäki		 works1 acci dent 4th 5th acci dent 3rd 4th
Armin Schwarz
Arne Hertz		 works1 acci dent acci dent 5th acci dent 5th
Mikael Ericsson
Nicky Grist		 works1 4th
Yasuhiro Iwase
Sudhir Vinayak		 suspe nsion
Marcus Grönholm
Ilkka Riipinen		 acci dent
Total points
()		 128 9 15 23 13 10 9 8 8 16 17
Statistics
Works Starts/finishes 22/16 3/1 3/2 3/3 2/2 3/0 1/1 1/1 1/1 1/1 2/2 2/2
Others Starts/finishes 2/0 1/0 1/0

Works team:
Safari: Toyota Team Kenya

Toyota_Celica_rally.jpg Source
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Information and articles

Article from 4T 267, 12/1992

Click here

Article from 4T 260, 5/1992

Click here

Drawings

toyotacelicacs.jpg
toyota-celica-gt-four.gif Source

Engine

2820_12lo.jpg Source

Transmission

gearbox%20section.gif Source
transfer1.gif Source
page revision: 144, last edited: 20 Oct 2019 10:52
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