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Maserati Tipo 4CS 1100 - Tipo 4CTR 1100
Specifications
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Maserati Tipo 4CS 1100

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SPECIFICATIONS

Brief History:
Wishing to build on the success achieved with the Tipo 26C, Alfieri sought to design a new 1100 cc car which could be used in both a racing and a sports version and in particular for events such as the Mille Miglia at which the 26C had been successful.  A new engine and a lightweight frame were conceived and a relationship with Pirelli was established reducing the dependence on Dunlop. First identified as just the 'Tipo 4C' and then the 'Tipo 4CTR" - the 'C' for 'corsa' or 'racing' and the 'TR' for 'testa riporta' or removable cylinder head - the car made its debut at Monza in racing version in 1931.  The 'Tipo 4CM' following that debut became the race version and the 'Tipo 4CS 1100' the sports version for events such as the Mille Miglia which it won four times in record times involving drivers such as Tuffanelli (1932) and Taruffi (1934) and Ettore Bianco in 1935 and 1936. 

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Specifications:
Production Period: 1931-1936
Designed By: Alfieri Maserati
Body Built By: Maserati - two seater sports or racer in aluminium.  Spyder version built by Brianza.
Number Built: 6
Dry Weight: 700 kg
Top Speed: 150 kph
Engine Type: Front, vertical in-line four cylinders
Bore and Stroke: 65x82 mm
Displacement: 1088.4 cc
Compression: 5.1 - 5.6:1
Engine Output: 90 - 115 bhp @ 5300-5600 rpm
Valves & Actuation: Two OHV per cylinder in 90 "V" with dual overhead camshafts
Carburettion: Forced with Roots compressor with Weber 48ASS on compressor intake.  Mean effective pressure 14.04-15.86 kg/sq. cm
Ignition: Single by Scintilla or Bosch magneto
Lubrication: Forced by pressure and scavenger pumps
Drive: Rear wheel drive
Clutch: Dry single disc
Gearbox: 4-speeds plus reverse
Frame: Two longitudinal members with cross-members of profiled steel
Suspension - Front: Leaf springs with friction dampers
Suspension - Rear: Rigid axle, longitudinal leaf springs with friction dampers
Brakes: Mechanically operated wheel drums - hydraulically operated from 1935
Wheelbase: 2450 mm
Front & Rear Track: 1200 mm front; 1200 mm rear
Wheels & Tyres: Spoked:  4.00x17 front; 4.00x17 rear
Tyres:  Pirelli 5x17 front and rear
    
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Last updated:   Thursday, January 27, 2011.