Mitsubishi Galant E39A VR4 group A (1988)
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Compressor performance diagram of the TD05H-14G turbo
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Compressor performance diagram of the TD05H-16G turbo
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Source | Development chain 1970: Mitsubishi Colt Galant A50 1988: Mitsubishi Galant E39A VR4 |
Table of Contents
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VR4 = Viscous Realtime 4wd
In RAC '88: see video
Specifications
Group/Class | A/8 | Homologation number: A5364 | |||
Years active | 1988-1992 | Homologation start: 1/5/1988 Homologation end: 31/12/1996 |
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Engine | |||||
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Type | Mitsubishi 4G63T, straight 4cyl, 4 stroke | located front transverse, with 8o front inclination | |||
Capacity | 1997.4 cc | WRC: x 1.7 = 3395.6 cc | |||
Bore x Stroke (mm) | 85.0 x 88.0 | ||||
Compression ratio | 8.5:1 | ||||
Output power - torgue | 280 - 300 HP / 7000 rpm | 40.8 kgm (400 Nm) / 5200 rpm | |||
Main bearings | forged steel crankshaft with 5 main bearings 61mm diameter | connecting rod length between axis 150mm, big end bearing tunnel diameter 48mm | |||
Materials | block: cast iron 229mm height, 93mm bore spacing, fitted with twin counter-rotating balancer shafts | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | |||
Cams/valves | 2 overhead camshafts (DOHC), belt driven | 4 valves/cyl - 16 valves total. 34.2mm intake valves diameter, 30.7mm exhaust valves diameter. 28.5o angle between inlet valve axis and vertical, 28.5o angle between exhaust valve axis and vertical. Operation with rocker arms | |||
Aspiration | 1 x Mitsubishi TD05H-14B turbocharger (12 blades cast iron turbine 49.1/56mm in/out diameter, 12 blades aluminium compressor 43/58.2mm in/out diameter), with air/air intercooler. Mitsubishi ECI Multi multipoint electronic fuel injection 6/1991+: TD05H-16G "large" turbocharger (12 blades cast iron turbine 49.1/56mm in/out diameter, 6+6 blades aluminium compressor 48.2/68.2mm in/out diameter) 1990-1991: 40mm turbo restrictor fitted 1992-1994: 38mm turbo restrictor fitted 1995+: 34mm turbo restrictor fitted |
pressure: 0.6 bar | |||
Ignition | electronic, firing order 1-3-4-2 | ||||
Cooling system | watercooled | 7.5 lt | |||
Lubricating system | wet sump | 4 lt | |||
Transmission | |||||
Type | Dynamic 4: four-wheel drive system, four wheel steering system, four-wheel independent suspension, and a four-wheel ABS | 5 speed or X-trac 6 speed manual gearbox | |||
Gearbox ratios | Type A: 1st: 2.846/1 (37/13) 2nd: 1.684/1 (32/19) 3rd: 1.115/1 (29/26) 4th: 0.833/1 (25/30) 5th: 0.667/1 (22/33) R: 3.167/1 (38/26 x 26/12) |
Type B: 1st: 2.267/1 (34/15) 1990: 1st: 2.063/1 (33/16) 2nd: 1.632/1 (31/19) 2nd: 1.500/1 (30/20) 3rd: 1.048/1 (22/21) 3rd: 1.190/1 (25/21) 4th: 0.985/1 (23/24) 5th: 0.808/1 (21/26) R: 2.846/1 (37/26 x 26/13) |
Type C, dog: 1st: 3.357/1 (47/14) 2nd: 2.563/1 (41/16) 3rd: 2.000/1 (38/19) 4th: 1.652/1 (38/23) 5th: 1.375/1 (33/24) 6th: 1.178/1 (33/28) R: 3.000/1 (42/16 x 16/14) |
Type A, (1991+),: 1st: 2.571/1 (36/14) 2nd: 1.600/1 (32/20) 3rd: 1.160/1 (29/25) 4th: 0.862/1 (25/29) 5th: 0.618/1 (21/34) R: 3.167/1 (38/26 x 26/12) |
Type C, dog (1991+): 1st: 3.467/1 (41/12) 2nd: 2.571/1 (36/14) 3rd: 2.000/1 (32/16) 4th: 1.650/1 (33/20) 1992+: 4th: 1.579/1 (30/19) 5th: 1.381/1 (29/21) 1992+: 5th: 1.261/1 (29/23) 6th: 1.174/1 (27/23) 1992+: 6th: 1.042/1 (25/24) R: 3.083/1 (37/14 x 14/12) |
Diffrential ratio | Center differential Type A: 1.276/1 (37/29) Type B: 1.280/1 (32/25) Type C: 1.731/1 (45/26), 1.630/1 (44/27), 1.536/1 (43/28) Front differential Type A: 3.867/1 (58/15), or (1991+) 4.267/1 (64/15) Type B: 4.267/1 (64/15) Type C: 2.562/1 (41/16), 2.353/1 (40/17), 2.167/1 (39/18) Transfer box Types A & B: 1.090/1 (24/22) Type C: 0.256/1 (10/39) Rear differential Type A: 3.545/1 (39/11), or (1991+) 3.909/1 (43/11) Type B: 3.909/1 (43/11) Type C: 3.900/1 (39/10) |
Gearbox outputs torque to parallel helical gears center differential, with two homocentric outputs on the same side, 1st to upper parallel helical gears friction discs limited slip front differential through hollow shaft, 2nd to lower spiral bevel gears transfer box through solid shaft. Viscous coupling clutch controls torque splitting between front differential and transfer unit. Transfer unit transfers torque to hypoid spiral bevel gears friction discs limited slip rear differential | |||
Clutch | dry single disk, 225mm diameter | ||||
Chassis-body | |||||
Type | steel monocoque Mitsubishi E39A chassis with steel front and rear cross member sub-frames. 57kg steel (D38.1x2.6, D38.1x2mm), or 25.5kg aluminium (D38.1x3mm), or 22.5kg aluminium (D40x2.9mm) roll cage. 4 door saloon steel bodyshell with steel doors and bonnets, urethane front/rear bumpers, and urethane rear spoiler. 1989: 46kg steel STKS 2E (D38.1x1.65mm), or 38kg steel SCM435 (D38.1x1.5, D35x1.5mm) roll cage. 1990: 33.5kg steel T45 (D38x1.6mm) roll cage. 1992: all aluminium roll cages cancelled |
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Front suspension | macpherson strut with lower 'L' wishbone, coil spring, telescopic shock absorber and anti-roll bar 10-30mm diameter | ||||
Rear suspension | "multi link" with trailing semi-trailing arm, 1 upper and 1 lower transverse links, coil spring, telescopic shock absorber and anti-roll bar 10-30mm diameter | ||||
Steering system | Front rack and pinion with hydraulic power assistance. Rear four wheel steering (4WS) electronic semi-active system with hydraulic cylinder actuated. Activated after 60km/h and has maximum steering angle 1.5o, same direction with front wheels. | 2.4 turns lock to lock, 14.1/1 or 11.6/1 ratio | |||
Brakes | front ventilated discs 266mm diameter with 1 cast iron piston caliper 53.9mm diameter, rear solid discs 265mm diameter with 1 cast iron piston caliper 30.1mm diameter. Front/rear ventilated discs 280/290/295/304/315/328/330/350/355mm diameter with 4 aluminium piston calipers (2x44.5+2x41.3)/(2x38.1+2x34.9)/(2x38.1+2x41.3)/32/34.9/36/38.1/41.3mm diameter. Front/rear solid or ventilated carbon fiber discs 278/292/304/315/330/350/355mm diameter. 1989: front/rear Brembo ventilated discs 278/332/355mm diameter with 4 aluminium piston calipers (2x36+2x40)/(2x38+2x42)mm diameter. 1990: front/rear AP ventilated discs 280/290/300/320/325mm diameter with 2 aluminium piston calipers 36/34.9/38.1/41.3/44.5mm diameter, or 4 aluminium piston calipers (2x38.1+2x44.5)mm piston pairs diameter. 1991: front/rear AP ventilated discs 315/325/330/340/355mm diameter with 6 aluminium piston calipers (2x27+2x36+2x44.5)/(2x27+2x38.1+2x38.1)mm piston pairs diameter, or 4 aluminium piston calipers (2x38.1+2x44.5)mm piston pairs diameter. |
dual circuit with Jidoshakiki vacuum servo, adjustable ratio split front to rear. Disc and caliper protection shields and stone scrapper fitted. Additional disc cooling duct. 1991: water cooling for AP calipers with 5 lt water tank | |||
Dimensions | |||||
length: 4.560 m (179.5 in) | width: 1.695 m (66.7 in) | height: 1.440 m (56.7 in) | |||
wheelbase: 2.600 m (102.4 in) | front track: 1.460 m (57.5 in) | rear track: 1.450 m (57.1 in) | |||
Rims - tires | 6" x 15" or 16" | 195/70 HR-15 | |||
Weight | 1300 kg | 58% - 42% front to rear distribution | |||
Weight/power | 4.4 kg/HP | ||||
Fuel tank | 62 lt | ||||
Drag coefficient | 0.36 |
Rear Suspension
Spring 11.0 x 106 x 389.5 (Wire dia, O.D, free length)
Spring Constant 20.0 N/mm
Shock
Max Length 583 +/-3 mm
Min Length 391 +/-3 mm
Stroke 192 mm
Damping Force
Expansion 1200 N
Contraction 450 N
Results in WRC
Statistics
1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | Total | |
Works | ||||||||||
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Races /wins | 2 | 4/2 | 6 | 6/1 | 4 | 22/3 | ||||
Entries/finishes | 3/1 | 9/6 | 11/3 | 12/8 | 6/3 | 41/21 (50%) | ||||
Others | ||||||||||
Races | +3 | +3/1 | +4/1 | +6/1 | 5 | 5 | 5 | 3 | 34/3 | |
Entries/finishes | 2/1 | 8/4 | 9/6 | 12/7 | 12/8 | 9/3 | 8/3 | 12/3 | 4/2 | 74/37 (50%) |
Total WRC results | ||||||||||
Races/wins | 2 | 7/2 | 9/1 | 10/2 | 10/1 | 5 | 5 | 5 | 3 | 56/6 |
Entries/finishes | 5/2 | 17/10 | 20/9 | 24/15 | 18/11 | 9/3 | 8/3 | 12/3 | 4/2 | 117/58 (49.6%) |
Total points | 50 | 53 | 88 | 48 | 3 | 7 | 5 | 254 (4.536 per race) (2.171 per entry) |
Races
Works team: Mitsubishi Ralliart Europe
Season
Entry | Rally event | ||||||||||||||
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Driver Codriver |
Team | M.C Entry list |
SVE Entry list |
POR | KEN | TdC | GRE | Oly | (N.Z) | ARG | FIN | (CdI) | S.R | RAC | |
Ari Vatanen Bruno Berglund |
works | eng ine | |||||||||||||
Kenjiro Shinozuka Fred Gocentas |
works | gear box | 26th | ||||||||||||
Seisuke Ohba Yasuo Kusakabe |
Tusk Engineering | 23th | |||||||||||||
Tetsuya Fujita Masao Taguchi |
Tusk Engineering | acci dent | |||||||||||||
Statistics | |||||||||||||||
Works starts/finishes | 3/1 | 1/0 | 2/1 | ||||||||||||
Others starts/finishes | 2/1 | 2/1 |
Source
Source
Source
Article from 4T 207, 12/1987
Click here
Turbo
SourceCompressor performance diagram of the TD05H-14G turbo
Source
Compressor performance diagram of the TD05H-16G turbo
Drawings
SourceSource
Engine
Source4WD system
Sourcepage revision: 232, last edited: 11 Dec 2019 05:34