Subaru Impreza GC8 555 group A (1993)
gr.jpg
gb.jpg
Home » Rally Cars » Subaru Impreza GC8 555
1993_Subaru_Impreza5557.jpg Source Develompent chain
1993: Subaru Impreza GC8 555
1997: Subaru Impreza GC8 WRC97
1998: Subaru Impreza GC8 WRC98
1999: Subaru Impreza GC8 WRC99
2000: Subaru Impreza GC8 WRC2000
2001: Subaru Impreza GDA WRC2001
2002: Subaru Impreza GDA WRC2002
2003: Subaru Impreza GDB WRC2003
2004: Subaru Impreza GDB WRC2004
2005: Subaru Impreza GDB WRC2005
2006: Subaru Impreza GDF WRC2006
2007: Subaru Impreza GDF WRC2007
2008: Subaru Impreza GE WRC2008
Development level
Group A
Group N
Production

Information

Specifications

Source
Group/Class A/8 Homologation number: A 5480
Years active 1993 - 1996 Homologation start: 1/4/1993
Homologation end: 31/12/2010
Engine
Type EJ20G HLA Bucket-style, boxer 4 cyl (180o degrees), 4 stroke, petrol engine located front longitudinal
Capacity 1994.3 cc WRC: x 1.7 = 3390.3 cc
Bore x Stroke (mm) 92.0 x 75.0
Compression ratio 8.8:1
Output power - torgue 300 - 320 HP / 5500 rpm (360 HP / 6500 rpm at 1.9 bar) 44.9 kgm (440 Nm) / 4000 rpm
Main bearings 5 of 64mm diameter, 52mm big end journals diameter connecting rod length between centers 130.5mm, big end bearing diameter 55mm
Materials block: die-cast aluminium alloy, with cast iron "dry type" cylinder liners, 201mm height cylinderhead: die-cast aluminium alloy 127mm height
Cams/valves 2 x 2 overhead camshafts (DOHC), belt driven 4 valves/cyl. - 16 valves total. 36.2mm inlet valve diameter, 32.2mm exhaust valves diameter. 20.5o angle between inlet axis and vertical, 20.5o angle between exhaust valve axis and vertical. 1 coil spring per inlet/exhaust valve
Aspiration IHI VF15 RHB52 turbocharger (steel turbine 58mm diameter, aluminium compressor 65mm diameter), or Mitsubishi TD05H turbocharger (steel turbine 56.3mm diameter, aluminium compressor 60.4mm diameter), with chargecooler (water-to-air intercooler), 38mm turbo restrictor and catalytic converter fitted, Bosch L-jetronic multi point eletronic fuel injection.
1995+: 34mm turbo restrictor fitted.
pressure: 1.6 - 1.9 bar (3 max)
Ignition electronic. Firing order 1-3-2-4
Cooling system watercooled 7.7 lt
Lubricating system wet sump with 1 oil cooler 5.5 lt
Transmission
Type four wheel drive Prodrive 5 or 6 speed semi-automatic gearbox with pneumatic paddle-shift or conventional H-pattern
Gearbox ratios 1st: 3.454/1 (38/11)
2nd: 2.062/1 (33/16)
3rd: 1.448/1 (42/29)
4th: 1.088/1 (37/34)
5th: 0.825/1 (33/40)
R: 3.416/1 (41/12)
1st: 2.923/1 (38/13)
2nd: 2.125/1 (34/16)
3rd: 1.736/1 (33/19)
4th: 1.450/1 (29/20)
5th: 1.227/1 (27/22)
6th: 1.043/1 (24/23)
R: 2.000/1 (36/12)
1st: 3.454/1 (38/11)
2nd: 2.333/1 (35/15)
3rd: 1.750/1 (35/20)
4th: 1.354/1 (42/31)
5th: 0.972/1 (35/36)
R: 3.416/1 (41/12)
1994+: 1st: 2.923/1 (38/13)
2nd: 2.125/1 (34/16)
3rd: 1.667/1 (30/18)
4th: 1.333/1 (28/21)
5th: 1.087/1 (25/23)
6th: 0.893/1 (25/28) or
6th: 0.853/1 (29/34)
R: 2.000/1 (36/12)
1997+: 1st: 3.083/1 (37/12)
2nd: 2.062/1 (33/16)
3rd: 1.535/1 (43/28) or from 1998+, 3rd: 1.545/1 (34/22)
4th: 1.151/1 (38/33)
5th: 0.825/1 (33/40)
R: 3.416/1 (41/12)
1997+: 1st: 3.166/1 (38/12)
2nd: 1.882/1 (32/17)
3rd: 1.296/1 (35/27)
4th: 0.972/1 (35/36)
5th: 0.738/1 (31/42)
R: 3.416/1 (41/12)
Diffrential ratio front/rear differentials: 4.111/1 (37/9), 3.364/1 (37/11), 3.454/1 (38/11), 3.545/1 (39/11), 3.700/1 (37/10), 3.900/1 (39/10), 4.364/1 (48/11), 4.444/1 (40/9), 4.625/1 (37/8), 4.875/1 (39/8), 5.143/1 (36/7), 3.889/1 (35/9), 3.875/1 (31/8), 3.444/1 (31/9), 4.375/1 (35/8)
Transfer box: 1.111/1 (30/27), 1.100/1 (33/30), 1.250/1 (30/24), 1.273/1 (28/22), 1.182/1 (26/22), 1.043/1 (24/23), 1.333/1 (28/21), 1.450/1 (29/20), 1.087/1 (25/23), 1.136/1 (25/22)
gearbox driven shaft permanently coupled with central differential case. Viscous coupling center differential, with 1st output through hollow driven gearbox shaft to hypoid spiral bevel gears limited slip front differential, and 2nd output to helical gears transfer box, and then to hypoid spiral bevel gears limited slip rear differential
Clutch dry, AP triple carbon disk 225mm diameter
Chassis-body
Type Steel monocoque GC8A chassis with roll-cage, and front and rear steel subframes. 4 door saloon steel bodyshell, aluminium front bonnet and polypropylene and steel front and rear bumbers
Front suspension macpherson strut with lower L wishbones, coil springs (tarmac 400-600 lb", gravel 160-275 lb"), Bilstein telescopic gas shock absorbers and 15 to 35mm diameter anti-roll bar
Rear suspension macpherson strut with 2 lower transverse and 1 longitudinal links, coil springs (tarmac 250-450 lb", gravel 130-200 lb"), Bilstein telescopic gas shock absorbers and 15 to 36mm diameter anti-roll bar
Steering system rack and pinion with hydraulic power assistance
Brakes ventilated front disks with 277mm disk diameter and 2 cast iron piston calipers, or 270-380mm disk diameter and 4/6/8 aluminium piston calipers. Ventilated rear disks with 268mm disk diameter and 1 cast iron piston caliper, or 270-380mm disk diameter with 4 aluminium piston calipers dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.340 m (170.9 in) width: 1.690 m (66.5 in) height: 1.405 m (55.3 in)
wheelbase: 2.520 m (99.2 in) front track: 1.465m (57.7 in) rear track: 1.455 m (57.3 in)
Rims - tires tarmac 8"x18", gravel 7"x15", snow 5.5"x16" Pirelli, 206/65x15 or 205/50x16
Weight 1230 kg 56.5% - 43.5% front/rear distribution
Weight/power 4 kg/HP
Fuel tank 75 lt

Results in WRC

Statistics

1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Total
Works
Races/ wins 2 10/4 8/5 10/3 30/12
Entries/ finishes 4/2 23/14 24/17 29/24 80/57 (71.3%)
Others
Races/ wins +1/1 +4 12 12 10 10 11 7 2 4 3 3 2 1 1 84/1
Entries/ finishes 3/2 12/7 31/26 44/25 30/19 19/10 24/12 26/9 20/8 6/4 7/3 4/2 5/3 2/1 1/0 1/1 235/132 (56.2%)
Total WRC results
Races/ wins 2 10/4 9/6 14/3 12 12 10 10 11 7 2 4 3 3 2 1 1 114/13
Entries/ finishes 4/2 26/16 36/24 60/50 44/25 30/19 19/10 24/12 26/9 20/8 6/4 7/3 4/2 5/3 2/1 1/0 1/1 315/189 (60%)
Total points 15 111 152 225 39 8 5 4 559
(4.904 per race)
(1.775 per entry)

Races

Works team: Subaru World Rally Team

Season
Entry Rally event
Driver
Codriver
Team M.C SVE POR KEN T.dC GRE ARG N.Z FIN AUS S.R ESP RAC
Colin McRae
Derek Ringer
works engine
Ari Vatanen
Bruno Berglund
works 2nd 5th
Markku Alén
Ilkka Kivimäki
works acci dent
Total points
()
15 9 6
Statistics
Works Starts/finishes 4/2 2/1 2/1

Information and articles

Article from 4T 288, 9/1994

Click here

Article from 4T 286, 7/1994

Click here

Article from 4T 275, 8/1993

Click here

Article from 4T 274, 7/1993

Click here

wallpapers_subaru_impreza_1993_1.jpg Source
subaru_impreza_wrx_sti_ver.ii_555_1.jpg Source
HolingerWRX500.jpg Source
Dogbox
impreza555gearbox.jpg Source: zc.manzes|rteP.ranleC#zc.manzes|rteP.ranleC
Synchro gearbox

Drawings

cutaway%20Subaru%20l555%20bat%204%20door.jpg Source
subaru-impreza-wrx-1993.gif Source

Turbocharger

twin-scroll-turbo_014.jpg Source
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License