Racing Dynamics K55 Sport Coupe (E31)

    Description

    The Racing Dynamics K55 coupe was based on the BMW 850Ci, fitted with a 5.0-litre M70 engine, increased in displacement to 5.5 litres, new valves, cam lifters and air intakes. The engine produced 401 hp.

    The car was equipped with a 6-speed manual transmission, but for a surcharge you could get a 5-speed automatic.

    In addition to engine modifications, the K55 offered various bodywork, suspension, rear end options.

    40 K55s were produced for the European market and one in the USA.

    Sources

    Bodywork
    Years of production
    1991-1994
    Produced (pcs.)
    41
    Body type
    купе
    Number of doors
    2
    Number of places
    4
    Engine
    Engine type
    бензиновый
    Engine location
    спереди, продольное
    Engine model
    RD K55 (BMW M70B50)
    Cylinders
    V12
    V-angle
    60°
    Cylinder operation
    1-7-5-11-3-9-6-12-2-8-4-10
    Capacity (cc)
    5486
    Power output (hp / kW /)
    401 /
    295 /
    at rpm
    5800
    Torque (N·m)
    540
    at rpm
    4150
    Bore (mm)
    84,0
    Stroke (mm)
    82,5
    Compression
    10,0
    Number of valves
    2/24
    Valvetrain
    OHC
    Block material
    алюминиевый сплав
    Fuel system
    впрыск
    Fuel system model
    Bosch DME
    Turbocharger
    Specific
    Specific output (hp/litre)
    73,10
    Specific output (hp/tonne)
    229,14
    Specific output (kg/hp)
    4,36
    Specific torque (N·m/litre)
    98,43
    Specific torque (N·m/tonne)
    308,57
    Transmission
    Driven wheels
    задний
    Clutch
    однодисковое
    Gearbox model
    Getrag
    Gearbox
    механическая
    Number of speeds
    6
    Suspension
    Front suspension
    макферсон
    Rear suspension
    независимая многорычажная
    Elastic elements in front
    пружины
    Elastic elements in rear
    пружины
    Front anti-roll bar
    да
    Rear anti-roll bar
    да
    Wheels brand
    Racing Dynamics H2
    Wheel size front
    9J×18
    Wheel size rear
    10,5J×18
    Tyres front
    235/40 R18
    Tyres rear
    295/35 R18
    Steering
    Steering type
    шестерня-рейка
    Power steering
    гидравлический
    Turning diameter (m)
    11,5
    Brakes specs
    Brakes front
    дисковые вентилируемые перфорированные
    Brakes rear
    дисковые вентилируемые
    Front brake diameter (mm)
    332×34
    Rear brake diameter (mm)
    324
    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)
    1300
    Wheelbase (mm)
    2684
    Front track (mm)
    1560
    Rear track (mm)
    1552
    Ground clearance (mm)
    140
    Drag coefficien
    0,290
    Curb weight (kg)
    1750
    Trunk volume max (litre)
    320
    Performance specs
    Ecological class
    Евро 2
    Fuel tank capacity (l)
    90
    Fuel type
    Аи-98
    Dynamic specs
    Acceleration 0-100 kph (s)
    5,7
    Acceleration 0-200 kph (s)
    24,4
    Acceleration 0-1000 m (s) /kph/
    25,1 /
    Top speed (kph)
    300
    Top speed (mph)
    186
    Last modified
    28.06.2023

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