Subaru Impreza GE WRC2008 (S14)
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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 GD WRC2001
2002: Subaru Impreza GD WRC2002
2003: Subaru Impreza GD WRC2003
2004: Subaru Impreza GD WRC2004
2005: Subaru Impreza GD WRC2005
2006: Subaru Impreza GD WRC2006
2007: Subaru Impreza GD WRC2007
2008: Subaru Impreza GE WRC2008

Also called Subaru Impreza S14 WRC2008
KEN BLOCK: see video
Assembly: see video

Specifications

12 units built

Group/Class A/8 Homologation number: A 5713 (01/01 WR)
Years active 2008 Homologation start: 1/6/2008
Homologation end: 31/12/2016
Engine
Type EJ207, boxer 4 cyl (180o) located front longitudinal
Capacity 1998 cc WRC: x 1.7 = 3396 cc
Bore x Stroke (mm) 92.02 x 75.1
Compression ratio 9.0:1
Output power - torgue 300 HP / 5500 rpm 66.3 kgm (650 Nm) / 3000 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 with Active Valve Control System (AVCS) and Tumble Generator Valves (TGVs) 4 valves/cyl. - 16 valves total. 36.2mm inlet valves diameter, 32.2mm exhaust valves diameter. 20.5o angle between inlet valves and vertical, 20.5o angle between exhaust valves and vertical. 1 coil spring per inlet/exhaust valve
Aspiration IHI RH twin scroll turbocharger (oil lubricated and watercooled) with chargecooler (water-to-air intercooler), 34mm turbo restrictor, anti-lag system and catalytic converter fitted. Nippon Denso MPI multipoint electronic fuel injection with a drive-by-wire throttle pressure: 2.0 bar
Ignition Subaru programmable electronic engine management system. Firing order 1-3-2-4
Cooling system watercooled 7.7 lt
Lubrication 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 t: 3.636/1 (40/11)
2nd: 2.375/1 (38/16)
3rd: 1.761/1 (37/21)
4th: 1.346/1 (35/26)
5th: 1.062/1 (34/32)
6th: 0.842/1 (32/38)
R: 3.545/1 (26/11 x 39/26)		 1st: 3.000/1 (30/10)
2nd: 2.250/1 (27/12)
3rd: 1.800/1 (27/15)
4th: 1.470/1 (25/17)
5th: 1.210/1 (23/19)
6th: 1.000/1 (21/21)
R: 3.545/1 (26/11 x 39/26)
Diffrential ratio front 3.900/1 (39/10), rear 3.545/1 (39/11), transfer box 1.100/1 (33/30) active hydro/electronically controlled epicyclical center differential with viscous coupling, 1st output to helical gears transfer box, 2nd output through hollow secondary gearbox shaft to hypoid spiral bevel gears limited slip front differential. Hypoid spiral bevel gears limited slip rear differential
Clutch dry double carbon plate, 240mm diameter
Chassis-body
Type steel monocoque GE chassis with roll-cage, front steel subframe for front suspension and gearbox, and rear steel subframe for rear suspension. 5 door hatchback steel bodyshell with extended wheel arches, aluminium front bonnet, polypropylene and steel front and rear bumbers, and synthetic rear wing
Front suspension mac pherson strut with lower wishbone, coil springs, Bilstein telescopic watercooled gas shock absorbers and anti-roll bar
Rear suspension mac pherson strut with longitudinal and transverse links, coil springs, Bilstein telescopic watercooled gas shock absorbers and anti-roll bar
Steering system power assisted rack and pinion
Brakes ventilated disks all around,
tarmac: 378/326/310mm diameter front/rear with 6/4 piston calipers
gravel: 316mm diameter with 4 piston calipers front/rear		 dual circuit with Hitachi servo
Dimensions
length: 4.415 m (173.8") width: 1.800 m (70.9") height: 1.475 m (58.1")
wheelbase: 2.635 m (103.7") front track: 1.550 m (61.0") rear track: 1.560 m (61.4")
Rims - tires tarmac: 8" x 18", gravel: 7" x 15" Pirelli
Weight 1230 kg
Weight/power 4.1 kg/HP
Fuel tank 70-120 lt

Results in WRC

Statistics

2008 2009 2010 Total
Works
Races 9 9
Entries/finishes 20/16 20/16 (80%)
Others
Races 7 3 10
Entries/finishes 9/5 5/5 14/10 (71.5%)
Total WRC results
Races 9 7 3 19
Entries/finishes 20/16 9/5 5/5 34/26 (76.5%)
Total points 84 15 6 105
(5.526 per race)
(3.088 per entry)

Races

Works team: Subaru World Rally Team

Season
Entry Rally event
Driver
Codriver		 Team MON SVE MEX ARG JOR ITA GRE TUR FIN DE NZ ESP TdC JAP GB
Petter Solberg
Phil Mills
PRO.08.003		 works 2nd 6th 4th 8th
Petter Solberg
Phil Mills
PRO.08.006		 works 6th 5th 5th 5th 4th
Chris Atkinson
Stéphane Prévot
PRO.08.004		 works ele ctri cal 13th radi ator 4th
Chris Atkinson
Stéphane Prévot
PRO.08.007		 works 3rd 6th 7th 6th acci dent
Brice Tirabassi
Fabrice Gordon
PRO.08.001		 works 10th eng ine
Total points
()		 84 9 5 13 11 7 11 11 10 7
Statistics
Works Starts/finishes 20/16 2/1 2/2 2/2 2/2 2/1 3/3 3/2 2/2 2/1
12811.jpg Source

Drawings

Turbocharger

modp-0906-03-o-twin-scroll-diagram.jpg

Transmission

subaru-manual-transmission-visco.jpg Source
Active center differential assembly
subaru-mt-diff-visco.jpg Source
Viscous coupling center differential
subaru-manual-transmission.jpg Source
Manual transmission 6 speed
si-full-sequential-gearbox.jpg Source
page revision: 54, last edited: 27 Mar 2019 16:14
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