Vauxhall Chevette 2300 HS group 4 (1976)
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SourceSpecifications
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Group/Class | 4/4 | Homologation number: 649 and transfer group B | |||
Years active | 1976-1981 | Homologation start: 1/11/1976 Homologation end: 31/12/1981 |
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Engine | |||||
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Type | Vauxhall Slant-4 16V, straight 4 cyl, 4 stroke, petrol engine | located front longitudinally with 45o inclination to the drivers side (LHD) | |||
Capacity | 2279 cc | WRC: 2279 cc | |||
Bore x Stroke (mm) | 97.59 x 76.2 mm | ||||
Compression ratio | 11.5:1 | ||||
Output power - torgue | 240 bhp @ 8200 rpm | 249 Nm @ 6000 rpm | |||
Main bearings | 5 of 63.5mm diameter | big end bearing diameter 50.8mm, aluminium alloy piston 39 mm compression height | |||
Materials | block: chromium cast iron | cylinderhead: 1976-1977 works: Lotus 907, 1978 Vauxhall cross flow aluminium alloy with hemishperical combustion chamber | |||
Cams/valves | double overhead camshaft (DOHC), belt driven. Blydenstein GT4X inlet and GT5X exhaust camshafts | 4 valves/cyl - 16 valves total | |||
Aspiration | natural, 2 x Dell'Orto 48 DHLA carburetors | ||||
Ignition | Luminition Optical trigger electronic ignition with contact breakers, firing order 1-3-4-2 | 12V battery | |||
Cooling system | jacketed watercooled with pump, radiator, fan and thermostat | 8 lt | |||
Lubrication system | wet sump. group 4: dry sump | 4.8 lt | |||
Transmission | |||||
Type | rear wheel drive | ZF or Getrag, 5 speed manual gearbox. Getrag was cancelled for goup B | |||
Gearbox ratios | constant: 1.259/1 (34/27) 1st: 2.99/1 (38/16) 2nd: 1.76/1 (35/25) 3rd: 1.30/1 (31/30) 4th: 1.00/1 (27/34) 5th: 0.87/1 (25/36) R: 3.64/1 (32/19/11) |
constant: 0.848/1 (?/?) 1st: 2.30/1 (38/16) 2nd: 1.80/1 (39/21) 3rd: 1.36/1 (35/25) 4th: 1.14/1 (28/30) 5th: 1.00/1 (33/28) R: 2.82/1 (32/19/11) |
1980 Getrag group 4: constant: 1.083/1 (26/24) 1st: 2.31/1 (32/15) 2nd: 1.68/1 (28/18) 3rd: 1.37/1 (28/22) 4th: 1.17/1 (26/24) 5th: 1.00/1 R: 2.74/1 (38/15) |
1980 Getrag group 4: constant: 1.579/1 (30/19) 1st: 3.37/1 (32/15) 2nd: 2.16/1 (26/19) 3rd: 1.58/1 (25/25) 4th: 1.24/1 (22/28) 5th: 1.00/1 R: 4.00/1 (38/15) |
1980 Getrag group 4: constant: 1.50/1 (24/16) 1st: 2.25/1 (24/16) 2nd: 1.66/1 (21/19) 3rd: 1.36/1 (19/21) 4th: 1.16/1 (17/22) 5th: 1.00/1 R: 2.98/1 (35/18 x 15/16) |
Diffrential ratio | 3.70/1 (37/10), 3.09/1 (34/11), 3.45/1 (38/11), 3.90/1 (39/10), 4.11/1 (37/9), 4.62/1 (37/8), 5.28/1 (37/7). 1977, Heavy duty: 3.77/1 (49/13), 4.09/1 (45/11), 4.27/1 (47/11), 4.55/1 (50/11), 4.89/1 (44/9), 5.38/1 (43/8). 1980: 3.44/1 (31/9), 3.70/1 (37/10), 3.89/1 (35/9), 4.00/1 (36/9), 4.10/1 (37/9), 4.30/1 (35/8), 4.63/1 (37/8), 4.89/1 (44/9), 5.14/1 (36/7), 5.28/1 (37/7), 5.33/1 (32/6), 5.80/1 (35/6) |
hypoid spiral bevel gears plated limited slip rear differential | |||
Clutch | dry single plate clutch, 216 mm diameter, or triple plate 197mm diameter | ||||
Chassis-body | |||||
Type | steel monocoque chassis with front suspension subframe. 3 door hatchback steel bodyshell. Group 4: extended wheel arches | ||||
Front suspension | double unequal wishbones with A arms, coil springs, telescopic shock absorbers and anti roll bar | ||||
Rear suspension | live axle with 2 lower longitudinal radius links, panhard rod, coil springs, telescopic shock absorbers | ||||
Steering system | rack and pinion (no servo) | ||||
Brakes | Front solid or ventilated disc brakes 265 mm disc diameter with 2 piston calipers 48.2 mm diameter. Rear drums 230 mm diameter with 1 double piston caliper 19.1 mm diameter, or rear solid or ventilated discs 265 mm diameter with 2 piston calipers 44.5mm diameter | dual circuit without vacuum servo | |||
Dimensions | |||||
length: 3.940 m (155.1") | width: 1.571 m (61.9"), group 4: +100 mm | height: 1.326 m (52.2") | |||
wheelbase: 2.395 m (94.3") | front track: 1.314 m (51.75") | rear track: 1.314 m (51.75") | |||
Rims - tires | 6J x 13" | 205/60 LHR x 13 | |||
Weight | 1000 kg | ||||
Fuel tank | 55 lt |
Results in WRC
Races
Works team: Dealer Team Vauxhall (DTV)
Season
Entry | Rally event | |||||||||||||||
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Driver Codriver |
Team | MC | SVE Entry list |
POR | KEN | GRE | MAR | FIN | S.R | TdC | RAC | |||||
Will Sparrow Rodney Spokes |
works | suspe nsion | ||||||||||||||
David Thompson (1300 grp 2) Simon Thompson |
Harold Thompson & Sons Ltd | 36th | ||||||||||||||
Peter Thompson (1300 grp 2) Alan Blackburn |
Harold Thompson & Sons Ltd | dnf | ||||||||||||||
Statistics | ||||||||||||||||
Works starts/finishes | 1/0 | 1/0 |
Source
Graham Elsmore with Chevette 2300 HS at RAC '80
Source
Terry Caby with Chevette 2300 HS at RAC '80
Source
David Porter with Chevette 2300 HS at RAC '79
Source
Chevette 2300 HS
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Chevette 2300 HS
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Bob Jelley with Chevette 2300 HSR at RAC '84
Source
Russel Brookes with Chevette 2300 HSR at RAC '83
Drawings
Sourcepage revision: 125, last edited: 29 Jan 2019 07:41