Key facts

Buick Roadmaster Touring Sedan, 1938 MY Series 80 81 information summary

What body style?
sedan/saloon with 6 seats
How long?
5417 mm
What size engine?
5.2 litre, 5247 cm3
How many cylinders?
8, Straight
How much power?
143 PS / 141 bhp / 105 kW @ 3600 rpm
How much torque?
365 Nm / 269 / 37.2 kgm @ 2000 rpm


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1938 Buick Roadmaster Touring Sedan technical specifications


The Buick Roadmaster Touring Sedan is a rear wheel drive motor car, with its engine located in the front, and a 4 door sedan/saloon body.
The Roadmaster Touring Sedan forms part of Buick's Series 80 range of cars.
Power is supplied by an overhead valve, 5.2 litre naturally aspirated 8 cylinder engine, with 2 valves per cylinder that develops power and torque figures of 141 bhp (143 PS/105 kW) at 3600 rpm and 365 N·m (269 lb·ft/37.2 kgm) at 2000 rpm respectively.
The power is transmitted to the wheels by means of a 3 speed manual gearbox.
1938 Buick Roadmaster Touring Sedan data
Buick Roadmaster Touring Sedan, 1938 MY Series 80 81 data
Body type6 seater sedan/saloon
Number of doors4
dimensions & weights
Wheelbase 3378 133
Track/tread (front) 1514 59.6
Track/tread (rear) 1588 62.5
Length 5417 213.3
Ground clearance
length:wheelbase ratio 1.6
Kerb weight
Weight distribution
fuel tank capacity 75.8 litres 16.7 UK Gal 20 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer Buick
Engine code
Cylinders Straight 8
Capacity 5.2 litre
5247 cc
(320.192 cu in)
Bore × Stroke 87.31 × 109.54 mm
3.44 × 4.31 in
Bore/stroke ratio 0.8
overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output 143 PS (141 bhp) (105 kW)
at 3600 rpm
Specific output 26.9 bhp/litre
0.44 bhp/cu in
maximum torque 365 Nm (269 ft·lb) (37.2 kgm)
at 2000 rpm
Specific torque 69.56 Nm/litre
0.84 ft·lb/cu3
Engine construction
compression ratio 6.35:1
Fuel system 1 Marvel CD2 carburettor
bmep (brake mean effective pressure) 874.2 kPa (126.8 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 655.88 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio
Weight-to-power ratio
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per litre
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering worm & double roller
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front 16 x 7.00
Tyres rear 16 x 7.00
Brakes F/R Dr/Dr
Front brake diameter
Rear brake diameter
Gearbox 3 speed manual
Top gear ratio 1.00
Final drive ratio 4.18
general ID340989
Production total
Model code 81
Model family Series 80
RAC rating 37.8
Insurance classification No information available
Tax band No information available
1938 Buick Roadmaster Touring Sedan added 2013-06-23.
Last modified 2013-06-23.

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1938 Buick Roadmaster Touring Sedan

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