Bugatti Type 43 43A
Grand Sport

Identifying Features:
Alloy GP wheels, large brakes, supercharger blow-off valve hole in RH bonnet, exhaust pipe diameter, engine noise, dash magneto, T43A roadster body

Years Made
(approx): 1927-31 (T43A, 1931-2)

Number Made:
160

Engine:
No. of cylinders: 8
Bore x stroke: 60 x 100mm
Capacity: 2262cc
BHP (approx): 120
RPM Limit (prudent): 5000
Camshaft: sohc
Valves (per cylinder): 3
Camshaft drive: Front, bevel
Crankshaft bearings, No. and Type: 3 + 1 ball, 2 roller, roller rods
Supercharger: Roots
Carburettor: Solex 46 or Zenith 48
Ignition: Magneto
Plugs per cylinder: 1
Firing Order: 1, 5, 2, 6, 3, 7, 4, 8

Clutch:
Type: Wet, multi-plate

Gearbox:
Location, Central, Separate, 4-speed and reverse
Gear change lever: Central

Rear Axle:
Normal Ratio: 13/54 = 4.15

Dimensions:
Wheelbase: 117in (2.972m)
Track: 49.2in (1.25m)
Weight (approx): 2400lb (1100kg)

Brakes:
Location and Type: 4-wheel cable operated
Brake drum diameter: 330mm

Wheels:
Type: Cast, integral drum, detachable rim
Tyre size: original 28 x 4.95; modern fitment, 5.00 x 19

Crossbreeding with Other Types:
T35B engine and wheels, T38 radiator and axles