Subaru Impreza GC8 WRC99 (S5)
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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

Also called Subaru Impreza 22B WRC99

In tarmac rallies: see video

Specifications

Group/Class A/8 Homologation number: A 5480 (40/03 WR)
Years active 1999 - 2000 Homologation start: 1/1/1999
Homologation end: 31/12/2010
Engine
Type EJ207 JDM, boxer 4 cyl (180o degrees), 4 stroke, petrol engine. Click here 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 9.0:1
Output power - torgue 300 HP / 5500 rpm 48.0 kgm (471 Nm) / 4000 rpm
Main bearings 5 of 64mm diameter, 52mm big end journals diameter connecting rod length between centers 134.5mm, 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 RX turbocharger (steel turbine 62mm diameter, aluminium compressor 69mm diameter), with chargecooler (water-to-air intercooler), 34mm turbo restrictor, anti-lag system and catalytic converter fitted, Jecs Bosch D-jetronic multi point eletronic fuel injection, and drive-by-wire throttle pressure: 2 bar
Ignition MoTeC M800 mapped 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 ATM (Automated Manual Transmission) 6-speed semi-automatic gearbox, electronically controlled, hydraulically actuated paddle-shift, or conventional H-pattern
Gearbox ratios 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: 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)
R: 2.000/1 (36/12)
1s1st: 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: 0.853/1 (29/34)
R: 2.000/1 (36/12)
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. Active hydro/electronically controlled viscous coupling center differential, with 1st output through hollow driven gearbox shaft to hypoid spiral bevel gears viscous coupling front differential, and 2nd output to helical gears transfer box, and then to hypoid spiral bevel gears viscous coupling rear differential
Clutch dry, double carbon disk 240mm diameter
Chassis-body
Type Steel monocoque GC8D chassis with roll-cage. Front and rear steel tubular subframes with central tubular steel tunel for rear axle. 2 door coupe steel bodyshell with extended steel wheel arches, aluminium front bonnet, steel supported polypropylene bumbers, and plastic rear spoiler
Front suspension macpherson strut with lower L wishbones, coil springs, Bilstein telescopic watercooled gas shock absorbers and 10 to 40mm diameter anti-roll bar
Rear suspension macpherson strut with 2 lower transverse and 1 longitudinal links, coil springs, Bilstein telescopic watercooled gas shock absorbers and 10 to 40mm diameter anti-roll bar
Steering system rack and pinion with hydraulic power assistance
Brakes ventilated front disks with 270-380mm disk diameter and 4/6/8 aluminium piston calipers. Ventilated rear disks with 270-380mm disk diameter with 4 aluminium piston calipers. Tarmac: 368/326/310mm diameter front/rear with 6/4 piston calipers, gravel: 316mm diameter with 4 or 2 piston calipers front/rear dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.340 m (170.9 in) width: 1.770 m (69.7 in) height: 1.405 m (55.3 in)
wheelbase: 2.520 m (99.2 in) front track: 1.510m (59.4 in) rear track: 1.510 m (59.4 in)
Rims - tires tarmac 8"x18", gravel 7"x15", snow 5.5"x16" Pirelli, 206/65x15
Weight 1230 kg
Weight/power 4.1 kg/HP
Fuel tank 70-120 lt

Results in WRC

Statistics

1999 2000 2001 2002 2003 2004 2005 2006-2008 2009 Total
Works
Races 13/5 3/1 16/6
Entries/finishes 30/24 6/5 36/29 (80.6%)
Others
Races +11 9 4 2 1 1 28
Entries/finishes 1/1 33/17 11/5 7/2 2/1 1/0 1/0 56/26 (46.4%)
Total WRC results
Races 13/5 14/1 9 4 2 1 1 44/6
Entries/finishes 31/25 39/22 11/5 7/2 2/1 1/0 1/0 92/55 (59.8%)
Total points 168 58 226
(5.136 per race)
(2.457 per entry)

Races

Works team: Subaru World Rally Team

Season
Entry Rally event
Driver
Codriver
Team MC SVE KEN POR ESP TdC ARG GRE N.Z FIN CHI S.R AUS RAC
Juha Kankkunen
Juha Repo
works 2nd 6th eng ine 6th 1st susp ens ion 2nd 1st 4th 6th susp ens ion 2nd
Richard Burns
Robert Reid
works 8th 5th 4th 5th 7th 2nd 1st gear box 2nd 2nd tran smi ssion 1st 1st
Bruno Thiry
Stéphane Prévot
works 5th 10th 6th 7th acci dent
Bertie Fisher
Rory Kennedy
21th
Total points
()
168 18 12 12 15 4 19 10 9 19 16 5 10 19
Statistics
Works starts/finishes 30/24 3/3 3/3 3/2 3/3 2/1 2/2 2/1 2/1 2/2 2/2 2/1 2/1 2/2
Others starts/finishes 1/1 1/1

impreza1999-eng_1-1.jpg Source

Drawings

subaru-impreza-wrc-1999.gif Source
subaru_impreza_wrc_1999-01016.jpg Source
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