Alpina B12 5.7 (E31)
Description
The Alpina B12 5.7 was introduced in 1992 and was based on the production BMW 850CSi (E31 body).
The number of produced Alpina B12 5.7 from November 1992 to December 1996 amounted to 57 units (for reference: BMW 850CSi was produced – 1510 copies).
Mechanics
The B12 5.7 model used the Alpina D2 engine, which was a boosted 5.7-liter BMW S70B56 V12 engine with up to 416 hp. With. and torque of 570 N∙m.
This engine received a modified air intake, a Bosch Motronic M1.7 injection system with a reprogrammed engine control unit, with manually turned valves. The crankshaft was also modified and Schrick camshafts and Mahle forged pistons were installed, while the piston stroke was increased to 81 mm. The exhaust system was designed by Alpina with stainless steel catalytic converters.
The gearbox was a 6-speed manual gearbox manufactured by Getrag. However, an electronic clutch system called Shift-Tronic by the manufacturer was optional. The system was developed in collaboration with LUK GS and the B12 5.7 was the only Alpina model offered with this system. 32 cars were equipped with the Shift-Tronic system and were badged "Shift-Tronic" on the rear in addition to the normal badging.
Exterior
External changes are very minor compared to the BMW 850CSi. A unique carbon fiber hood with engine cooling vents and a NACA center duct was fitted, along with original Alpina Classic alloy wheels.
Interior
Anthracite leather with blue contrast stitching was used for the interior, along with wood-trimmed instrument panel and wood shift knob.
It is worth noting that the base car BMW 850CSi already had electric seats with memory, an electric steering wheel for reach and tilt. And also, for the first time, solutions such as CAN-bus, electronically controlled cable-free throttle assembly, ASC + T – an automatic stability and traction control system that monitors lateral displacements and controls the brakes, and an active steering rear suspension AHK (Aktive Hinterachs-Kinematik ) with electrohydraulic drive.
Sources
accelerationtimes.com
alpina-automobiles.com
automobile-catalog.com
autowp.ru
drive2.ru
fastestlaps.com
kolesa.ru
wikipedia.org
Specification
| Bodywork | |
|---|---|
| Years of production |
1992-1996
|
| Produced (pcs.) |
57
|
| Body type |
купе
|
| Number of doors |
2
|
| Number of places |
4
|
| Engine | |
|---|---|
| Engine type |
бензиновый
|
| Engine location |
спереди, продольное
|
| Engine model |
Alpina D2 (BMW S70B56)
|
| Cylinders |
V12
|
| V-angle |
60°
|
| Capacity (cc) |
5646
|
| Power output (hp / kW /) |
416 /
306 /
|
| at rpm |
5400
|
| Torque (N·m) |
570
|
| at rpm |
4000
|
| Bore (mm) |
86,0
|
| Stroke (mm) |
81,0
|
| Compression |
10,0
|
| Number of valves |
2/24
|
| Valvetrain |
OHC
|
| Block material |
алюминиевый сплав
|
| Oil sump capacity (l) |
7,5
|
| Fuel system |
многоточечный впрыск
|
| Fuel system model |
Bosch Motronic M1.7
|
| Turbocharger |
—
|
| Specific | |
|---|---|
| Specific output (hp/litre) |
73,68
|
| Specific output (hp/tonne) |
232,40
|
| Specific output (kg/hp) |
4,30
|
| Specific torque (N·m/litre) |
100,96
|
| Specific torque (N·m/tonne) |
318,44
|
| Transmission | |
|---|---|
| Driven wheels |
задний
|
| Clutch |
однодисковое
|
| Gearbox model |
Getrag Type 286 + Alpina Shift-Tronic
|
| Gearbox |
механическая
|
| Number of speeds |
6
|
| Final drive ratio |
2,930
|
| Suspension | |
|---|---|
| Front suspension |
макферсон
|
| Rear suspension |
независимая многорычажная
|
| Elastic elements in front |
пружины
|
| Elastic elements in rear |
пружины
|
| Front anti-roll bar | |
| Rear anti-roll bar | |
| Wheels brand |
Alpina Classic by Ronal
|
| Wheel size front |
9J×18
|
| Wheel size rear |
10,5J×18
|
| Tyres front |
245/45 R18
|
| Tyres rear |
285/35 R18
|
| Steering | |
|---|---|
| Steering type |
шестерня-рейка
|
| Power steering |
гидравлический
|
| Turning diameter (m) |
11,5
|
| Brakes specs | |
|---|---|
| Brakes front |
дисковые вентилируемые
|
| Brakes rear |
дисковые вентилируемые
|
| Disc material |
чугун
|
| Number of caliper pistons (front/rear) |
4/1
|
| Anti-lock braking system |
да
|
| Dimensions and weight | |
|---|---|
| Body |
несущий
|
| Length (mm) |
4780
|
| Width (mm) |
1855
|
| Height (mm) |
1330
|
| Wheelbase (mm) |
2684
|
| Front track (mm) |
1560
|
| Rear track (mm) |
1552
|
| Ground clearance (mm) |
140
|
| Drag coefficien |
0,290
|
| Curb weight (kg) |
1790
|
| Max. weight (kg) |
2260
|
| Trunk volume max (litre) |
320
|
| Performance specs | |
|---|---|
| Fuel consumption combined (l/100 km) |
11,0
|
| Fuel consumption (ECE) at 90 kph (l/100 km) |
9,3
|
| Fuel consumption (ECE) at 120 km/h (l/100 km) |
10,9
|
| Fuel consumption (ECE) city (l/100 km) |
19,9
|
| Fuel consumption (ECE) combined (l/100 km) |
13,4
|
| Fuel tank capacity (l) |
90
|
| Fuel type |
Аи-98
|
| Dynamic specs | |
|---|---|
| Acceleration 0-10 kph (s) |
0,5
|
| Acceleration 0-20 kph (s) |
1,0
|
| Acceleration 0-30 kph (s) |
1,5
|
| Acceleration 0-40 kph (s) |
2,0
|
| Acceleration 0-50 kph (s) |
2,4
|
| Acceleration 0-60 kph (s) |
2,9
|
| Acceleration 0-70 kph (s) |
3,5
|
| Acceleration 0-80 kph (s) |
4,2
|
| Acceleration 0-90 kph (s) |
4,9
|
| Acceleration 0-100 kph (s) |
5,8
|
| Acceleration 0-110 kph (s) |
6,9
|
| Acceleration 0-120 kph (s) |
8,2
|
| Acceleration 0-130 kph (s) |
9,7
|
| Acceleration 0-140 kph (s) |
11,3
|
| Acceleration 0-150 kph (s) |
12,9
|
| Acceleration 0-160 kph (s) |
14,4
|
| Acceleration 0-170 kph (s) |
15,9
|
| Acceleration 0-180 kph (s) |
17,3
|
| Acceleration 0-190 kph (s) |
18,4
|
| Acceleration 0-200 kph (s) |
19,2
|
| Acceleration 0-10 mph (s) |
0,8
|
|---|---|
| Acceleration 0-20 mph (s) |
1,6
|
| Acceleration 0-30 mph (s) |
2,3
|
| Acceleration 0-40 mph (s) |
3,2
|
| Acceleration 0-50 mph (s) |
4,2
|
| Acceleration 0-60 mph (s) |
5,5
|
| Acceleration 0-70 mph (s) |
7,2
|
| Acceleration 0-80 mph (s) |
9,5
|
| Acceleration 0-90 mph (s) |
12,0
|
| Acceleration 0-100 mph (s) |
14,6
|
| Acceleration 0-110 mph (s) |
16,9
|
| Acceleration 0-120 mph (s) |
18,7
|
| Acceleration 0-92 m (300 feet) (s) /kph/ |
6,2 /
105,0 /
|
|---|---|
| Acceleration 0-100 m (s) /kph/ |
6,5 /
108,0 /
|
| Acceleration 0-200 m (s) /kph/ |
9,7 /
142,0 /
|
| Acceleration 0-201 m (1/8 mile) (s) /kph/ |
9,8 /
142,0 /
|
| Acceleration 0-300 m (s) /kph/ |
12,4 /
164,0 /
|
| Acceleration 0-305 m (1000 feet) (s) /kph/ |
12,5 /
164,0 /
|
| Acceleration 0-400 m (s) /kph/ |
14,6 /
178,0 /
|
| Acceleration 0-402 m (1/4 mile) (s) /kph/ |
14,7 /
179,0 /
|
| Acceleration 0-500 m (s) /kph/ |
16,6 /
189,0 /
|
| Acceleration 0-600 m (s) /kph/ |
18,4 /
197,0 /
|
| Acceleration 0-610 m (2000 feet) (s) /kph/ |
18,6 /
198,0 /
|
| Acceleration 0-1000 m (s) /kph/ |
24,9 /
|
| Rolling acceleration 100-200 kph (s) |
13,4
|
|---|
| Top speed (kph) |
300
|
|---|---|
| Top speed (mph) |
186
|
| Tags: | |
|---|---|
| Type: | |
| Brand: | |
| Country: |
Post date
27.06.2023
Last modified
31.07.2023
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