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Diana Straight 8

Bodywork

type 6/7S SAL
doors 4

Engine information

Bore × stroke 76.20 mm × 108.00 mm 3 in × 4.25 in
Cylinders S-8
Displace 3.9 litre 3940 cc (240.434 cu in)
Engine type 2 valves
Valves 2 valves per cylinder | 16 valves in total
Engine construction
Sump
Compression ratio 4.66:1
Fuel system 1 St carb
Maximum power 73 PS (72.0 bhp) (53.7 kW) @ 2950 rpm
0-50 mph
0-60 mph
0-100 mph
0-100 km/h
80 - 120 km/h
402 m (Quarter mile)
Standing km
Top speed
Fuel consumption
CO2 emissions
Power to weight ratio
Specific output
Maximum torque 207.0 Nm (153 ft·lb) (21.1 kgm) @ 1200 rpm
bmep
Specific torque 52.54 Nm/litre
Maximum rpm
Code 12 Z
Main bearings 5
Coolant Water
Bore / stroke ratio 0.71
Unitary capacity 492.5 cc/cylinder
Aspiration Normal
Compressor type N/A
Intercooler None
Catalytic converter

Dimensions and weight

wheelbase 3429 mm
wheelbase 135 in
Length (milimeters) 4699 mm
Length (inches) 185 in
Width (milimeters)
Width (inches)
Height (milimeters)
Height (inches)
L:W ratio 1.37
Ground clearance (milimeters)
Ground clearance (inches)
Kerb weight (kilograms)
Kerb weight (pounds)
Weight distribuiton
Fuel capacity (litres) 68.2 litre
Fuel capacity (UK Ga) 15 UK Gal
Fuel capacity (US Gal) 18 US Gal

Aerodynamics

Drag coefficient
Frontal area
Cx

Chassis

Engine location Front
Engine alignment Longitudinal
Drive RWD
Steering cam & lever
Turns lock-to-lock
Turning circle
Tyres 32 x 6.20
Wheels
Brakes F/R Dr/Dr
Brake ∅
Braked area
Transmission 3M
Top gear ratio
Final drive ratio 5.10

General information

RAC rating 28.8
Number made
Model code
Model family
Insurance classification No information available
Tax band No information available

Manual Download

Download 1925 Diana Straight 8 PDF Manual
Designer unknown
Year 1925

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