Opel Astra F GSi 16V group A (1992)
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1967: Opel Kadett B
1975: Opel Kadett C GT/E
1978: Opel Kadett C2 GT/E
1982: Opel Kadett D GT/E
1984: Opel Kadett E 1.8 GSi
1987: Opel Kadett E 2.0 GSi
1988: Opel Kadett E GSi 16V
1992: Opel Astra F GSI 16V

Also called Vauxhall Astra F GSi 16V

Specifications

Group/Class A/7 Homologation number: A5452
Years active 1992 - 1997 Homologation start: 1/2/1992
Homologation end: 31/12/2004
Engine
Type GM Family II C20XE, straight 4 cyl, 4 stroke, petrol engine.
1993: C20XE-LN evolution engine		 located front transverse with 7.5o front inclination
Capacity 1998 cc WRC: 1998 cc
Bore x Stroke (mm) 86.0 x 86.0
Compression ratio 11.0:1, 11.8:1
Output power - torgue 210 - 230 HP / 7500 rpm 24.0 kgm (235 Nm) / 5500 rpm
Main bearings cast iron crankshaft with 5 main bearings 58mm diameter, 49mm big end journal diameter connecting rod length 143mm, big end bearing tunnel diameter 52.6mm, aluminium alloy piston with 30.5mm compression height. 1997, VK: 51.93mm big end bearing tunnel diameter
Materials block: cast iron, 270.85mm height cylinderhead: cross flow aluminium alloy with "pent roof" hemispherical combustion chambers, 135.45mm height
Cams/valves dual overhead camshafts (DOHC), belt driven 4 valves/cyl. - 16 valves total. 33.1mm inlet valve diameter, sodium filled exhaust valves with 29.1mm diameter. 23o angle between inlet valves and vertical, 23o angle between exhaust valves and vertical
Aspiration natural, Bosch Motronic M2.5 multi point electronic fuel injection
1997, VK: MBE 941 multi point electronic fuel injection
1999+: Catalytic converter and intake restrictor (extension 33/12 ER) fitted
Ignition electronic, firing order 1-3-4-2, Champion RC9MCC spark plugs.
1993, evolution ET: distributorless semi conducter direct ignition, with double spark ignition coil
Cooling system jacketed watercooled with pump, radiator, 5 blades 366mm diameter fan and thermostat 6.9 lt
Lubrication system wet sump with 1 oil cooler 4.8 lt
Transmission
Type front wheel drive Getrag F20, 5 speed, or X-Trac, 6 speed manual gearbox with oil cooler
Gearbox ratios F20, 1st: 3.545/1 (39/11)
2nd: 2.158/1 (41/19)
3rd: 1.478/1 (34/23)
4th: 1.129/1 (35/31)
5th: 0.886/1 (31/35)
R: 3.333/1 (27/12 x 40/27)		 X-trac TXVT, no synchro, 1st: 2.800/1 (42/15)
2nd: 2.167/1 (39/18)
3rd: 1.850/1 (37/20)
4th: 1.591/1 (35/22)
5th: 1.375/1 (33/24)
6th: 1.179/1 (33/28)
R: 3.000/1 (16/14 x 42/14)		 X-trac TXV, no synchro, 1st: 2.786/1 (39/14)
2nd: 2.12/1 (34/16)
or (1993:) 2nd: 2.333/1 (35/15)
3rd: 1.882/1 (32/17)
4th: 1.579/1 (30/19)
5th: 1.381/1 (29/21)
6th: 1.18/1 (26/22)
or (1993:) 6th: 1.227/1 (27/22)
R: 2.692/1 (15/13 x 35/15)		 1993, X-trac, no synchro, 1st: 2.308/1 (30/13)
2nd: 1.867/1 (28/15)
3rd: 1.555/1 (28/18)
4th: 1.350/1 (27/20)
5th: 1.174/1 (27/23)
6th: 1.045/1 (23/22)
R: 3.333/1 (27/12 x 40/27)		 1994, X-trac, no synchro, 1st: 2.375/1 (38/16)
2nd: 1.889/1 (34/18)
3rd: 1.571/1 (33/21)
4th: 1.364/1 (30/22)
5th: 1.167/1 (28/24)
6th: 1.038/1 (27/26)
R: 2.467/1 (15/15 x 37/15)
Diffrential ratio 3.55:1 (71/20), and 2.55/1 (51/20), 2.65/1 (53/20), 2.74/1 (52/19), 2.84/1 (54/19), 2.94/1 (53/18), 3.06/1 (55/18), 3.18/1 (54/17), 3.29/1 (56/17), 3.44/1 (55/16), 3.56/1 (57/16), 3.73/1 (56/15), 3.74/1 (71/19), 3.87/1 (58/15), 3.94/1 (71/18), 4.07/1 (57/14), 4.19/1 (67/16), 4.200/1, (63/15), 4.21/1 (59/14), 4.67/1 (56/12), 4.78/1 (67/14), 4.85/1 (63/13), 4.92/1 (64/13), 5.00/1 (55/11), 5.09/1 (56/11), 5.180/1 (57/11), 3.27/1 (36/11), 3.77/1 (49/13), 3.84/1 (50/13), 4.00/1 (48/12), 4.08/1 (49/12), 4.17/1 (50/12), 4.54/1 (50/11), 3.42/1 (65/19).
1994: 4.86/1 (68/14), 4.47/1 (67/15)		 helical gears, 90% friction discs (mechanical) limited slip front differential
Clutch dry single disc, 228mm diameter
Chassis-body
Type steel monocoque chassis of GM T platform with front "Pi" shaped cross member steel subframe, roll-cage. 3 door hatchback steel bodyshell with steel doors, steel front/rear bonnets, plastic front/rear bumpers and plastic rear top airfoil
Front suspension mac pherson strut with lower "L" wishbone, coil springs (tarmac 200 lbs), telescopic gas shock absorbers and anti roll bar
Rear suspension trailing torsion beam axle with coil springs (tarmac 200 lbs), telescopic gas shock absorbers and anti roll bar
Steering system rack and pinion with ZF hydraulic power assitance 18/1, 14.8/1, 17.1/1, 22/1 ratio
Brakes Front ventilated discs 256mm diameter with 1 cast iron piston caliper 52mm diameter. Rear solid discs 260mm diameter with 1 cast iron piston caliper 35mm diameter.
Front/rear ventilated discs 295/304/313/325/254/320/330/327/315/290/256/255/250/236/310/280mm diameter.
Front/rear 4/2 AP/Brembo/Girling aluminium piston calipers from 30 to 45mm diameter, or 4/6 AP aluminium piston calipers from 25 to 45mm diameter.
1994: front/rear ventilated discs 355mm diameter		 dual circuit with ATE/Delco vacuum servo, adjustable ratio split front to rear. Front/rear dirt removal scoop, disc protection shields, and discs air cooling ducts.
1994: water cooling for front 6 piston calipers
Dimensions
length: 4.086 m (160.9") width: 1.688 m (66.5") height: 1.410 m (55.5")
wheelbase: 2.517 m (99") front track: 1.434 m (56.5") rear track: 1.436 m (56.5")
Rims - tires 6" x 15"
Weight 925-1000 kg
Fuel tank 57.5 lt
Drag coefficient 0.32

Changes from previous model are noted in bold

Getrag F20, 5 speed manual gearbox (for some markets gearbox and final drive ratios are)
1996, 1st: 3.583/1 (43/12)
2nd: 2.143/1 (45/21)
3rd: 1.481/1 (40/27)
4th: 1.121/1 (37/33)
5th: 0.892/1 (33/37)
R: 3.333/1 (27/12 x 40/27)

final drive: 3.737/1 (71/19)

2001, 1st: 2.307/1 (30/13)
2nd: 1.687/1 (27/16)
3rd: 1.388/1 (25/18)
4th: 1.200/1 (24/20)
5th: 1.045/1 (23/22)
R: 3.333/1 (27/12 x 40/27)

final drive: 4.666/1 (56/12), 4.846/1 (63/13)

Results in WRC

Statistics

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Total
Total WRC results
Races/wins 2 9/(7) 10/(2) 9/(3) 10 5 5 6 1 1 58/(12)
Entries/finishes 2/0 20/14 18/10 21/12 17/8 14/10 10/4 9/7 1/0 1/1 113/66 (58.4%)

Races

Works team: -

Season

A/7 classification noted in brackets
Entry Rally event
Driver
Codriver		 Team MC (SVE)
Entry list		 POR KEN TdC GRE (NZ) ARG FIN AUS SR (CdI) (ESP) RAC
Eugenio Lozza
Antonella Fiorendi		 dnf*
Marcello Gaetti
Alessandra Ghirri		 dnf*
Alain Lopès
Jacky Delvaux		 Opel Team Belgium eng ine
Dave Metcalfe
Ian Grindrod		 Vauxhall Dealer Sport drive shaft
Statistics
Starts/finishes 2/0 1/0 1/0

*Group N3 entries

Article from 4T 275, 8/1993

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Drawings

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page revision: 178, last edited: 20 Nov 2019 19:01
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