Identifying Features:
Vane-type Bugatti wheels, twin plug, single cam engine, with fan

Years Made
(approx): 1930-34

Number Made:
470

Engine:
No of cylinders: 8
Bore x stroke: 72 x 100mm
Capacity: 3257cc
BHP (approx): 85
RPM Limit (prudent): 4000
Camshaft: sohc
Valves (per cylinder): 3
Camshaft drive: Central, bevel
Crankshaft bearings: 9 plain, plain rods
Carburettor: 1 Schebler
Ignition: Coil
Plugs per cylinder: 2
Firing Order: 1, 6, 2, 5, 8, 3, 7, 4

Clutch:
Type: Dry, multi-plate*

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

Rear Axle:
Normal Ratio: 12/50 = 4.16

Dimensions:
Wheelbase: 122.8; 1.267in (3.122; 3.222m)
Track:: 49.2in (1.25m)
Chassis Weight (approx): 2400lb (1100kg)

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

Wheels:
Type: Usually cast alloy, vane type
Tyre size: Original 28 x 5.25; modern fitment, 18 x 5.50

Crossbreeding with Other Types:
Similar in most respects to earlier T44; gearbox used on T55

* A few early cars had wet clutches