Toyota Celica TA64 Twin Cam Turbo group B (1983)
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1986-Toyota-Celica-TCT-Waldegard.JPG Source Develpment chain
1976: Toyota Celica RA20 16V
1979: Toyota Celica RA45 GT2000
1982: Toyota Celica RA63 GT2000
1983: Toyota Celica TA64 TCT

Toyota Team Europe information here
On board: see video with Juha Kankkunen in RAC rally 1985
In Safari rally 1984/1985/1986: see video

Specifications

225 units built, 20 units as Evolution version
Group/Class B/12 Homologation number: B239
Years active 1983 - 1986 Homologation start: 1/8/1983
Homologation end: 31/12/1988
Engine
Type Toyota 4T-GTEU, straight 4cyl, 4 stroke, petrol engine located front longitudinal with 4o inclination to drivers side (LHD)
Capacity 1791 cc, EVO: 2090 cc WRC: x 1.4 = 2507 cc
EVO: x 1.4 = 2926 cc
1988: x 1.7 = 3553 cc
Bore x Stroke (mm) 85.5 x 78.0, EVO: 89.0 x 84.0
Compression ratio 7.1:1
Output power - torgue 350 - 370 HP/ 8500 rpm
(max 380 HP / 9000rpm at 0.90 bar)
(330 HP at 0.55 bar)		 35.0 - 43.8 kgm (343 - 430 Nm) / 5500 rpm
Main bearings cast steel crankshaft with 5 main bearings 62.5mm diameter, EVO 62mm connecting rod length between centers 123mm with EVO 137.5mm, big end bearing tunnel diameter 51mm
Materials block: cast iron cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers
Cams/valves 2 overhead camshafts (DOHC), chain driven 2 valves/cyl. - 8 valves total. 44.5mm inlet valves diameter, 38.5mm exhaust valves diameter. 33o angle between inlet valves axis and vertical, 33o angle between exhaust valves axis and vertical.
EVO: 46.5mm inlet valves diameter, 40.5mm exhaust valves diameter
Aspiration Toyota CT20 (10 blades steel turbine 48/60mm in/out diameter, 5+5 blades aluminium compressor 36/57mm in/out diameter) turbocharger, with air/air intercooler and Nippondenso L-jetronic multipoint electronic fuel injection,
EVO KKK K27 turbocharger (12 blades steel alloy turbine 64/76mm in/out diameter, 6+6 blades aluminium alloy compressor 55/82mm in/out diameter) with air/air intercooler and Nippondenso D-jetronic multipoint electronic fuel injection		 pressure: 0.75 bar (max 0.90 bar)
Ignition electronic nipodenso, 2 spark plugs per cylinder, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, fan and thermostat
Lubrication system wet sump, dry sump with oil cooler located in rear spoiler 15 lt
Transmission
Type rear wheel drive Hewland, 5 speed manual gearbox
Gearbox ratios constant: 1.469/1 (47/32)
1st: 3.567/1 (34/14)
2nd: 2.056/1 (35/25)
3rd: 1.385/1 (33/35)
4th: 1.000/1
5th: 0.850/1 (33/57)
R: 4.092/1 (39/31 x 31/14)		 constant: 1.368/1 (26/19)
1st: 2.254/1 (28/17)
2nd: 1.711/1 (25/20)
3rd: 1.368/1 (22/22)
4th: 1.140/1 (20/24)
5th: 1.000/1 (-)
R: 3.812/1 (39/31 x 31/14)		 constant: 1.364/1 (30/22)
1st: 2.818/1 (31/15)
2nd: 1.860/1 (30/22)
3rd: 1.423/1 (24/23)
4th: 1.169/1 (24/28)
5th: 1.000/1 (-)
R: 4.196/1 (23/13 x 40/23)		 constant: 1.364/1 (30/22)
1st: 2.273/1 (30/18)
2nd: 1.719/1 (29/23)
3rd: 1.364/1 (24/24)
4th: 1.145/1 (21/25)
5th: 1.000/1 (-)
R: 4.196/1 (23/13 x 40/23)
Diffrential ratio 4.1/1 (41/10), 4.889/1 (44/9), 4.545/1 (50/11), 5.375/1 (43/8).
1985: 3.769/1 (49/13), 4.091/1 (45/11), 4.273/1 (47/11)		 hypoid spiral bevel gears limited slip rear differential
Clutch dry, double disk
Chassis-body
Type steel monocoque TA64 chassis with roll cage and front steel subframe. 2 door coupe steel bodyshell with plastic front and rear bonnets, plastic doors, plastic bumpers and plastic rear spoiler
Front suspension mc pherson strut with lower 'L' links, coil spring, telescopic gas shock absorber and anti-roll bar 15 to 30mm diameter
Rear suspension live axle with 2 lower radius arms, 2 upper 45o location arms, parhar rod, coil springs, telescopic gas shock absorber and anti roll bar 10 to 20mm diameter
Steering system rack and pinion (no servo) 19.3/1 ratio, 2.25 turns lock to lock, 13/1 ratio
Brakes front ventilated disks 248mm diameter with 1 cast iron piston caliper 57.2mm diameter, rear solid disks 258mm diameter with 1 cast iron piston caliper 38.1mm diameter.
Front ventilated disks 260/285mm diameter with 4 aluminium piston calipers 41.3mm diameter, rear ventilated disks 264/285mm diameter with 2 aluminium piston calipers 50.8mm diameter or 4 aluminium piston calipers 41.3mm diameter.
1985: front/rear ventilated discs 292/300mm diameter with 4 aluminium piston calipers 41.3mm diameter 41.2+38.1mm each piston pair diameter		 dual circuit with Jidoshakiki vacuum servo, adjustable ratio split front to rear
Dimensions
length: 4.416 m (173.9")
EVO: 4.284 m (168.7")		 width: 1.691 m (66.6)
EVO: 1.785 m (70.3")		 height: 1.410 m (55.5")
wheelbase: 2.500 m (98.4") front track: 1.410 m (55.5") rear track: 1.400 m (55.1")
Rims - tires 14", speedline light alloy
front: 6" - 8" x 15" (only for gravel 16")
back: 7" - 10" x 15"		 Pirelli, 185/75 - 215x15"
Weight 1020 - 1100 kg
Fuel tank 61 lt, 100 lt (130 lt for Safari)

Results in WRC

Statistics

1983 1984 1985 1986 Total
Works
Races /wins 3/1 5/1 5/2 3/2 16/6
Entries/finishes 8/5 11/4 11/6 9/8 39/23 (59%)
Others
Races/wins 0
Entries/finishes 2/0 2/0 (0%)
Total WRC results
Races/wins 3/1 5/1 5/2 3/2 16/6
Entries/finishes 8/5 13/4 11/6 9/8 41/23 (56.1%)
Total points 27 30 48 66 171
(10.687 per race)
(4.171 per entry)

Races

Works team: Toyota Team Europe

Season
Entry Rally event
Driver
Codriver		 Team M.C (SVE) POR KEN TdC GRE N.Z ARG FIN S.R (CdI) RAC
Björn Waldegård
Hans Thorszelius		 works* 12th 1st eng ine
Juha Kankkunen
Staffan Pettersson		 works* 6th OTL 7th
Per Eklund
Ragnar Spjuth		 works* 3rd acci dent
Total points
()		 27 5 18 4
Statistics
Works starts/finishes 8/5 2/2 3/2 3/1

*Works entries
Rally Cote d' Ivoire: Premoto Toyota team
Rally RAC: Toyota team Great Britain

Information and articles

Article from 4T 177, 6/1985

Click here

Toyota_Celica_1984_Group_B.jpg Source
Juha Kankkunen's car in Safari rally '85
Toyota_rally2.jpg Source
page revision: 60, last edited: 02 Oct 2019 18:06
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