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Maserati Tipo 300S
Specifications
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Maserati Tipo 300S

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SPECIFICATIONS

Brief History:
Following the initial race of the 250S at Monza in 1954, Bellentani designed a 2.8 litre in-line 6 cylinder, which on testing by Bertocchi and Villoresi was abandoned to power a boat.  Persisting with his long stroke theory Bellentani developed a 3.0 litre six with dimensions of 84x90 mm and a capacity of 2992.5 cc which on the lower compression of 9:1 developed about the same power as the 250F.  Apart from this fundamental difference the other details were similar to the 2.5 litre of the 250F.  Similarly the chassis showed similarities to the 250F, but used a trellis structure of elliptical and round tubes. Due to the similarities with the 250F the positive developments on that car flowed on to the 300S including changes in carburettion, cylinder head, and exhaust systems. Bodywork was designed by Fantuzzi and some face-lifting was done on cars from 1956:  some models had the nose lengthened and were made more slender following the style of the 200SI, others had holes cut to improve brake cooling for front and rear brakes and some cars later benefited from the 450S brake development.  The 300S had its best year in 1956 and was only a step from the World Championship.  In 1957 it played second fiddle to the 450S.  With a three litre displacement limit in force for 1958, three V12 options were developed, but due to the company's circumstances at that time were never taken further, albeit that Moss tested a version in a 350S frame at Nurburgring in June, 1958.  When the tide turned in favour of Maserati participating in racing again in 1959, the Tipo 61 had arrived.

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Specifications:
Production Period: 1955-1958
Designed By: Bellentani
Body Built By: Fantuzzi - 2 seater sports car in aluminium
Number Built: 29
Dry Weight: 780 kg
Top Speed: 290 kph
Engine Type: Front, vertical in-line six cylinder
Bore and Stroke: 84x90 mm
Displacement: 2992.5 cc
Compression: 9:1
Engine Output: 245 bhp @ 6200 rpm
Valves & Actuation: Two OHV per cylinder with dual overhead camshafts
Carburettion: Free induction with 3 Weber 42DCO3 or 45DCO3
Ignition: Double with two Marelli magnetos
Lubrication: Forced with pressure and scavenger pumps
Drive: Rear wheel drive
Clutch: Dry multi-disc
Gearbox: In unit with differential, 4-speeds plus reverse.  5-speeds from 1958
Frame: Tubular trellis
Suspension - Front: Independent wheels, coil springs and Houdaille hydraulic shock absorbers
Suspension - Rear: De Dion axle, transverse leaf springs and Houdaille hydraulic shock absorbers
Brakes: Hydraulically operated wheel drums
Wheelbase: 2310 mm
Front & Rear Track: 1300 mm front; 1250 mm rer
Tyres: 6.00x16 front; 6.50x16 rear - Pirelli
Wheels: 5X16 Spoked
    
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Last updated:   Monday, June 30, 2003.