The Crossley 20-70

The Crossley 20-70 was manufactured between 1922 and 1926. Total production is estimated at 50 to 100. The chassis numbers were part of the 19.6 series. Known examples are 16430 and 16829. The engine was a tuned version of that fitted to the 19.6 featuring higher compression ratio, polished and balanced crankshaft and lightweight pistons .

BODY STYLES

Crossley 20/70 four seat tourer

Crossley 20/70 Four seat tourer

4 seat sports
Top - Type B Body, Bottom - Type C body (The Type A was similar to the Type B but with hood fitted to the car as in the Type C rather than of the detachable type
£875 (1923) £900 (1924) £860 (1925)

Crossley 20/70 two seat tourer
 

   

2 seat sports
£845 (1923)

 Crossley 20/70 saloon

4 seat V windscreen saloon
(1924)

Crossley 20/70 speedforte 

(Described as 2 seater that could be made into a 4 seater by removing rear deck. A rear windscreen would fold up. Displayed at the 1924 Olympia show. (Note - although the car shown fits the description it is not certain that it is a "Speedforte"))

"Speedforte" 2/4 seater
£910 (1924)

The above are all Crossley factory bodies. The car could also be supplied in chassis form to independent coach builders. (chassis £675 in 1923)

The prices quoted are from contemporary advertisements.

SPECIFICATION

Engine/gearbox/transmission

Body/chassis

capacity
3705cc
cylinders
4 monobloc
bore
3 1/2 inches (89mm)
stroke
5 7/8 inches(150mm )
compression ratio
5.2:1
RAC Horse Power
19.6
carburettor
Smiths 5 jet
valves
side
lubrication
pressure with drilled crankshaft
ignition
magneto - Lucas type EB4 or GD4
max power
76 bhp at 3200 rpm
fuel consumption (typical)
22 mpg
max speed (approx)
75 mph
Gears
4 forward + reverse gears.
ratios - 1:1, 1.56:1, 2.40:1, 3.8:1
Clutch
cone
Rear axle
spiral bevel
ratio 3.3:1

 

wheelbase
10 feet 4 inches
length
14 feet 7 inches
track
4 feet 7 inches
weight
18 1/2 cwt (chassis only)
27 1/4 cwt (4 seat tourer)
steering
worm and complete wheel
suspension - front
semi elliptic springs
suspension -rear
semi elliptic springs

brakes

 

Two wheel brake models -
hand brake operates on rear wheels
foot brake operates on transmission

Four wheel brakes optional (from October 1923)  -
Foot brake operates on all four wheels using Perrot system .
hand brake operates on transmission
wheels/tyres
Dunlop 6 stud bolt on wheels (early)
Rudge Whitworth splined (late)
820mm x 120mm

 

 

RETURN TO CROSSLEY CARS IN THE 1920s

© Malcolm Asquith 2002