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 17506. The engine was a tuned version of that fitted to the 19.6 featuring higher compression ratio, polished and balanced crankshaft and lightweight pistons .
Four 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)
Two seat sports
Four seat V windscreen saloon
"Speedforte" 2/4 seater
Described as a two seater that could be made into a four seater by removing the rear deck. A rear windscreen would fold up. It was displayed at the 1924 Olympia show. (Note - although the car shown fits the description it is not certain that it is a "Speedforte")
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.
|bore||3½ inches (89mm)|
|stroke||5 7⁄8 inches (150mm )|
|RAC Horse Power||19.6|
|carburettor||Smiths 5 jet|
|lubrication||pressure with drilled crankshaft|
|ignition||magneto - Lucas type EB4 or GD4|
|max power||76 bhp at 3200 rpm|
|fuel consumption (typical)||22 mpg (12.8 l/100km)|
|max speed (approx)||75 mph (120 km/h)|
|Gears||4 forward + reverse gears.
ratios - 1:1, 1.56:1, 2.40:1, 3.8:1
|Rear axle||spiral bevel
|wheelbase||10 feet 4 inches (3.15 m)|
|length||14 feet 7 inches (4.45 m)|
|track||4 feet 7 inches (1.40 m)|
|weight||18½ cwt (940 kg) (chassis only)
27¼ cwt ( 1384 kg) (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