Opel Calibra 16V group A (1991)
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Source
Source | Development chain 1983: Opel Manta B GTE 1991: Opel Calibra 16V 1993: Opel Calibra Turbo 4x4 |
Development level Group A Group N |
Specifications
Group/Class | A/7 | Homologation number: A 5430 | |
Years active | 1992 | Homologation start: 1/3/1991 Homologation end: 31/12/2004 |
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Engine | |||
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Type | GM Family II C20XE, 1992+ evolution type C20XE-LN (Low Noise with direct ignition), straight 4 cyl, 4 stroke, petrol 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 | 11.8:1 | ||
Output power - torgue | 225 HP / 7500 rpm | 24 kgm (235 Nm) / 5500 rpm | |
Main bearings | 5 of 58mm diameter | connecting rod length 143mm, big end bearing internal diameter 52.6mm | |
Materials | block: cast iron, 271mm height | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers, 135.5mm height | |
Cams/valves | 2 overhead camshafts (DOHC), belt driven | 4 valves/cyl. - 16 valves total. 33.1mm inlet valves diameter, sodium filled exhaust valves 29.1mm diameter. 23o angle between inlet valves and vertical, 23o angle between exhaust valves and vertical. 1 coil spring per valve | |
Aspiration | natural, Bosch Motronic M2.7 electronic fuel injection | ||
Ignition | electronic | Champion RC9MCC spark plugs. 1992+ LN engine: direct ignition with 2 spark plugs/cylinder | |
Cooling system | watercooled | 7.5 lt | |
Lubrication system | wet sump with 1 oil cooler | 4.5 lt | |
Transmission | |||
Type | front wheel drive | Quaife 5 speed, or X-trac 6 speed manual gearbox | |
Gearbox ratios | 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) |
1st: 2.786/1 (39/14) 2nd: 2.125/1 (34/16) 3rd: 1.882/1 (32/17) 4th: 1.650/1 (33/20) 5th: 1.450/1 (29/20) 6th: 1.261/1 (29/23) R: 2.692/1 (15/13 x 35/15) |
1992+: 1st: 2.786/1 (39/14) 2nd: 2.125/1 (34/16) 3rd: 1.882/1 (32/17) 4th: 1.579/1 (30/19) 5th: 1.381/1 (29/21) 6th: 1.182/1 (26/22) R: 3.333/1 (27/12 x 40/27) |
Diffrential ratio | Front: 3.550/1 (71/20), 2.550/1 (51/20), 2.650/1 (53/20), 2.737/1 (52/19), 2.842/1 (54/19), 2.944/1 (53/18), 3.055/1 (55/18), 3.176/1 (54/17), 3.294/1 (56/17), 3.737/1 (71/19), 3.867/1 (58/15), 3.944/1 (71/18), 4.071/1 (57/14), 4.188/1 (67/16), 4.200/1 (63/15), 4.214/1 (59/14), 4.500/1 (63/14), 4.667/1 (56/12), 4.786/1 (67/14), 4.846/1 (63/13), 4.923/1 (64/13), 5.000/1 (55/11), 5.091/1 (56/11), 5.182/1 (57/11). 1992+: 3.273/1 (36/11), 3.769/1 (49/13), 3.846/1 (50/13), 4.000/1 (48/12), 4.083/1 (49/12), 4.167/1 (50/12), 4.545/1 (50/11) |
helical gears limited slip front differential | |
Clutch | dry single disk, 228mm diameter | ||
Chassis-body | |||
Type | steel monocoque chassis of GM 2900 platform with roll-cage and front suspension steel sub-frame. 3 door coupe steel bodyshell with plastic bumpers | ||
Front suspension | macpherson strut with lower L wishbone, coil spring, telescopic gas shock absorber and anti-roll bar | ||
Rear suspension | trailing/semi-trailing arm with coil spring, telescopic gas shock absorber and anti-roll bar | ||
Steering system | rack and pinion with hydraulic power assistance | 19/1, 14.8/1, 17.1/1, 22/1 ratio | |
Brakes | front ventilated disks 256mm diameter with 1 cast iron piston caliper, or 295/304/313/325mm diameter and 2/4 aluminium piston calipers. Rear solid disks 260mm diameter with 1 cast iron piston caliper, or ventilated disks 254/295mm diameter with 2/4 aluminium piston calipers. 1992+: front ventilated disks 280/330/340/355mm diameter and 4/6 aluminium piston calipers. Rear ventilated disks 280mm diameter and 4/6 aluminium piston calipers |
dual circuit with 229mm diameter servo, adjustable ratio split front to rear | |
Dimensions | |||
length: 4.492 m (176.9") | width: 1.688 m (66.5") | height: 1.320 m (52.0") | |
wheelbase: 2.600 m (102.4") | front track: 1.426 m (56.1") | rear track: 1.446 m (56.9") | |
Rims - tires | 6 x 15" - 16" | 205/60/ZR 16 | |
Weight | 1050kg | ||
Fuel tank | 68 lt | ||
Drag coefficient | 0.29 |
Results in WRC
Statistics
1992 | Total | ||||||
Total WRC results | |||||||
---|---|---|---|---|---|---|---|
Races | 2 | 2 | |||||
Entries/finishes | 2/1 | 2/1 (50%) |
Races
Works team: -
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 |
Bruno Thiry Stéphane Prévot |
Opel Team Belgium | trans miss ion | 9th (1st) | ||||||||||||
Total points () |
2 | 2 | |||||||||||||
Statistics | |||||||||||||||
Starts/finishes | 2/1 | 1/0 | 1/1 |
Source
Article from 4T 260, 5/1992
Click here
Article from Track & Race Car (June 2005)
Click here
Drawings
SourceEngine
Sourcepage revision: 64, last edited: 20 Nov 2019 14:08