Opel Ascona B 400 group 4 (1980)
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 Source |
Development level Group 4 Group 2 |
Drifting: see video1 and video2 (Sweden rally '83)
On board (tarmac): see video
On board (gravel): see video
Specifications
| Group/Class | 4/4 and B/12 | Homologation number: 666 and transfer group B, phase 2: B221 (08/01 ET) | |
| Years active | 1980 - 1984 | Homologation start: 1/11/1979 and 1/11/1982 Homologation end: 31/12/1981 and 31/12/1987 |
|
| Engine | |||
|---|---|---|---|
| Type | 4S phase 1 and phase 2, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal | |
| Capacity | 2410 cc | WRC: 2410 cc | |
| Bore x Stroke (mm) | 95.0 x 85.0 | ||
| Compression ratio | 11.5:1 | ||
| Output power - torgue | phase 1 (1980 - 1981): 240 HP/ 7000 rpm phase 2 (1982 +): 255 HP/7000 rpm |
phase 1: 28.0 kgm (275 Nm) / 5000 rpm phase 2: 29.6 kgm (290 Nm) / 5000 rpm |
|
| Main bearings | forged steel crankshaft with 5 main bearings, 55mm diameter, big end journal diameter 52mm diameter | connecting rod length between centers 134mm, big end bearing tunnel diameter 55mm | |
| Materials | block: grey cast iron | cylinderhead: Cosworth cross flow aluminium alloy with hemispherical combustion chambers | |
| Cams/valves | 2 overhead camshafts (DOHC), chain driven to one camshaft, and gear driven from camshaft to camshaft | 4 valves/cyl. - 16 valves total. 35.7mm inlet valve diameter, 30.2mm exhaust valve diameter. 10o angle between inlet valve axis and vertical, 10o angle between exhaust valve axis and vertical. phase 2: 38mm inlet valve diameter, 32mm exhaust valve diameter | |
| Aspiration | natural, 2 x Weber DCOE 48 carburetors | ||
| Ignition | electronic, firing order 1-3-4-2 | ||
| Cooling system | jacketed watercooled with pump, radiator, fan and thermostat | ||
| Lubrication system | wet or dry sump | 15 lt | |
| Transmission | |||
| Type | rear wheel drive | 5 speed getrag gearbox | |
| Gearbox ratios | constant input: 1.034/1 (30/29) 1st: 2.328/1 (36/16) 2nd: 1.674/1 (34/21) 3rd: 1.352/1 (34/26) 4th: 1.144/1 (31/28) 5th: 1.000/1 (direct) R: 2.650/1 (41/16) |
constant input: 1.652/1 (38/23) 1st: 3.717/1 (36/16) 2nd: 2.403/1 (32/22) 3rd: 1.766/1 (31/29) 4th: 1.263/1 (26/34) 5th: 1.000/1 (direct) R: 4.230/1 |
phase 2: constant input: 1.038/1 (27/26) 1st: 2.337/1 (36/16) 2nd: 1.671/1 (34/21) 3rd: 1.355/1 (30/23) 4th: 1.163/1 (28/25) 5th: 1.000/1 (direct) R: 2.650/1 (41/16) |
| Diffrential ratio | 3.18/1 (35/11), 3.45/1 (38/11), 3.56/1 (32/9), 3.67/1 (33/9), 3.89/1 (35/9), 4.22/1 (38/9), 4.75/1 (38/8), 5.3/1 (37/7), 5.57/1 (39/7), 6.14/1 (43/7) | hypoid spiral bevel gears, 75% - 80% limited slip rear differential | |
| Clutch | dry, single plate, 9" (229mm) diameter. phase 2: double plate | ||
| Chassis-body | |||
| Type | steel monocoque chassis with roll cage and front subframe for front suspension. 2 doors coupe steel/plastic bodyshell with plastic bonnet, front and rear bumbers and spoilers | ||
| Front suspension | double unequal wishbones with coil springs, Bilstein telescopic gas shock absorbers and anti-roll bar | ||
| Rear suspension | live axle with 4 longitudinal links, panhard rod, coil springs and Bilstein telescopic gas shock absorbers. See picture | ||
| Steering system | rack and pinion (no servo) | 2.7 turns lock to lock, 15.5/1 | |
| Brakes | front ventilated disks 271/279/289mm diameter with 2 piston calipers 54mm diameter, or 4 piston callipers 41mm diameter, rear solid or ventilated (phase 2) disks 271/277/304mm diameter with 2 piston calipers 40mm diameter or 4 piston callipers 31.75mm diameter | adjustable dual circuit with vacuum servo | |
| Dimensions | |||
| length: 4.320 m (170.0") | width: 1.664 m (65.5"). phase 2: 1.760 m (69.3") | height: 1.360 m (53.5") | |
| wheelbase: 2.518 m (99.1") | front track: 1.387 m (54.6") | rear track: 1.375 m (54.1") | |
| Rims - tires | 5" - 8" x 14" - 15" | Michelin TRX 135-250TR290, 205/50 R14 | |
| Weight | 1050 - 1100 kg | ||
| Fuel tank | 60, 80, 110 lt | ||
Results in WSCC
Phase 2 specificationsSeason
Classification in group 4 is noted in brackets
Classification in group 4 is noted in brackets
| Car entry, chassis number | Car number/ result | ||||||||||
| Monza | Silver stone | Nurb | Le Mans | Spa | Mugello | Fuji | Brands Hatch | ||||
| Team | 1000km | 6h | 1000km | 24h | 1000km | 1000km | 6h | 1000km | |||
| Mantzel & Kissling Tuning | #59, in entry list | ||||||||||
| Mantzel & Kissling Tuning | #60, 22nd (15th) | ||||||||||
| Mich Opel Tuning | #61, 8th (4th) | ||||||||||
| Total points 3 |
3 | ||||||||||
| Statistics | |||||||||||
| Starts/finishes 2/2 | 2/2 | ||||||||||
| Driver | Team entries and car number | ||||||||||
| Mantzel & Kissling Tuning | |||||||||||
| Helmut Hennes | 59 | ||||||||||
| Manfred Wollgarten | 59 | ||||||||||
| Wolfgang Offermann | 60 | ||||||||||
| Christoph Esser | 60 | ||||||||||
| Mich Opel Tuning | |||||||||||
| Karl-Heinz Schäfer | 61 | ||||||||||
| Karl-Heinz Gürthler | 61 | ||||||||||
Results in WRC
Statistics
| 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | Total | ||
| Works | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Races /wins | 8/1 | 2 | 12/2 | 3/1 | 25/4 | ||||
| Entries/finishes | 14/8 | 2/1 | 23/14 | 6/4 | 45/27 (60%) | ||||
| Others | |||||||||
| Races/wins | +1 | +6 | +3 | 9 | 4 | 2 | 25 | ||
| Entries/finishes | 7/2 | 20/11 | 16/4 | 6/2 | 18/9 | 5/2 | 5/1 | 77/31 (40.3%) | |
| Total WRC results | |||||||||
| Races/wins | 9 | 8 | 12/2 | 5/1 | 9 | 4 | 2 | 50/4 | |
| Entries/finishes | 21/10 | 22/12 | 39/18 | 12/6 | 18/9 | 5/2 | 5/1 | 122/58 (47.5%) | |
| Total points | 52 | 57 | 112 | 27 | 18 | 5 | 0 | 271 (5.420 per race) (2.221 per entry) |
|
Races
Works team:
- works1: Opel Euro Händler (1980-1981)
- works: Rothmans Opel Rally Team (1982-1983)
Season
| Entry | Rally event | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Driver Codriver |
Team | M.C | (SVE) Entry list |
POR | KEN | GRE | ARG | (FIN) | N.Z | S.R | TdC | RAC | CdI | ||
| Jochi Kleint Gunter Wanger |
works1 | 8th | acci dent | 9th | 11th | diff ere ntial | |||||||||
| Anders Kulläng Bruno Berglund |
works1 | 4th | 1st | acci dent | 4th | punc tures | gear box | 5th | |||||||
| Jean-Pierre Nicolas Henry Liddon |
works1 | 5th | |||||||||||||
| Shekhar Mehta' Yvonne Mehta |
works1 | broken wheel | |||||||||||||
| Björn Johansson Ragnar Spjuth |
Team Rallyesport | 4th | acci dent* | ||||||||||||
| 'Tony' 'Rudy' |
Conrero | brakes | |||||||||||||
| Dario Cerrato Luciano Guizzardi |
Conrero | half shaft | |||||||||||||
| Giorgio Bernocchi Federico Scotti |
9th | ||||||||||||||
| Jean-Louis Clarr Jean-François Fauchille |
Simon Clarr Racing | trans miss ion | |||||||||||||
| Guy Colsoul Alain Lopès |
Dealer Opel Team Belux | fly wheel | |||||||||||||
| Total points () |
52 | 10 | 10 | 8 | 7 | 7 | 2 | 8 | |||||||
| Statistics | |||||||||||||||
| Works starts/finishes | 14/8 | 2/2 | 1/1 | 2/0 | 2/2 | 3/2 | 1/0 | 2/0 | 1/1 | ||||||
| Others starts/finishes | 7/2 | 1/1 | 3/1 | 1/0 | 2/0 | ||||||||||
*Dealer Opel Team Sweden entry
Articles in greek
Click here
Article for Engine in german
SourceRothmans Opel Rally Team in 1982
SourceOpel Euro Händler Team in 1980-81
Drawings
SourceGroup 4
Rear suspension
Source
- Πάνω μπράτσα στήριξης
- Σύνδεσμοι μεταλλικοί ή από τεφλόν των πάνω μπράτσων στο σασί και στον άξονα
- Κάτω σύνδεσμος μεταλλικός ή από τεφλόν του κάτου μπράτσου με τον άξονα
- Σύνδεσμοι μεταλλικοί ή από τεφλόν των κάτω μπράτσων με το σασί
- Κάτω μπράτσο
- Κάτω μπράτσο
page revision: 136, last edited: 06 Nov 2019 09:58