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Maserati Tipo 8CTF
Specifications
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Maserati Tipo 8CTF

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SPECIFICATIONS

Brief History:
The 8CTF ('8', 'C' cylinder, T for ''Testa Fista" or fixed head and 'F' for "Formula") was built to take advantage of the new international Grand Prix formula to wrest away some of the domination of Mercedes Benz and Auto Union.  With the theoretical prospect of competing on equal terms and with the new financial support of the Orsi family, Ernesto developed a new single seater.  The engine borrowed the bore and stroke of 69x100 mm again from the 8CM and 4CM 1500 and created a new 3000 cc engine comprising two cylinder blocks mounted on a common crankcase and cast in a single block with the cylinder head.  Each group of 4 cylinders had independent carburettion, a legacy from experiments on the 8CM; two compressors one driven directly by the crankshaft and another indirectly via a gear.  Memini carburettors were used as was single ignition.  The firing order on 3032, the last car made was changed to give smoother performance. Suspension was similar to the 6CM with independent front and rigid axle and cantilevered leaf springs and longitudinal struts in the rear.  Following their debut in Tripoli GP in 1938 the front cowling was enlarged for cooling and further engine development which took the engine power to 365 bhp whilst owned by Maserati.  The Shaw car retained this output when sold but those sold to the French team were detuned on sale.  All three cars competed at Indianapolis in 1939 and 1940, with Wilbur Shaw in no 3032 winning in both years.

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Specifications:
Production Period: 1938-1939
Designed By: Ernesto Maserati
Body Built By: Maserati - single seater in aluminium
Number Built: 3
Dry Weight: 780 kg
Top Speed: 290 kph
Engine Type: Front, vertical in-line eight cylinders
Bore and Stroke: 69x100 mm
Displacement: 2991.4 cc
Compression: 6.5:1
Engine Output: 350-366 bhp @ 6300 rpm
Valves & Actuation: Two OHV per cylinder in 90º "V" with dual overhead camshafts
Carburettion: Forced by Roots compressors with two Memini MA12 on the compressor intake.  Mean effective pressure 16.71-17.48 kg/sq. cm
Ignition: Single with Scintilla magneto
Lubrication: Forced by pressure and scavenger pumps
Drive: Rear wheel drive
Clutch: Dry multi-disc
Gearbox: 4-speeds plus reverse
Frame: Two longitudinal members with cross-members of profiled steel
Suspension - Front: Independent wheels, torsion bars with friction dampers
Suspension - Rear: Rigid axle, Leaf springs with friction dampers and hydraulic shock absorbers
Brakes: Hydraulic operated wheel drums
Wheelbase: 2720 mm
Front & Rear Track: 1350 mm front; 1380 mm rear
Wheels & Tyres: Spoked: 3.25x19-4.00x19
Tyres: Pirelli 5.50x19 - 6.00x19 front 6.50x19 rear
    
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PO Box 6058  CROMER  VIC  3193  AUSTRALIA
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Last updated:   Monday, June 30, 2003.