1955→1957 Maserati 200SI Barchetta


1955→1957 Maserati 200SI Barchetta

Maserati 200SI Barchetta

Replacing the Maserati A6GCS/53 was the 200SI of 1955. The car was named after the Sport Internazionale class of racing which mandated functional doors, a soft-top and full-width windscreen.

This model was used by the factory works team and privateers in the 2-liter sports car class and was primary competition for the Ferrari 500TR.

The engine was a 2-litre version of the 4-cylinder used in the 150S designed by Vittorio Bellentani with advanced features such as dry-sump lubrication, an aluminum alloy block with cast iron liners. Options included an hemispherical combustion chamber with a 80º angled valves and twin-plug ignition. Using 2 Weber 45DCO03 carburetors, nearly 180 bhp was possible.

Chassis design was similar to other Maserati‘s of the period with a chassis manufactured by Gilco with two main oval-tube longerons. Fantuzzi was responsible for most of the aluminum bodies which resulted in a dry weight of 660 kg.

The 200SI first appeared at the 1955 Imola GP with Franco Bordoni and he later raced the same model at the Targa Florio with Giovanni Bracco. Later the car scored a resounding victory with Stirling Moss at the wheel during the 1956 Trofeo Supercortemaggiore. He beat four Ferrari 500TRs and described the car as “very quick on twisty circuits” and “handled really nicely.”

1955 Maserati 200SI Barchetta Gallery

See full 1955 Maserati 200SI Barchetta Gallery here

1955→1957 Maserati 200SI Barchetta

In Detail

submitted by Richard Owen
type Racing Car
production years 1955 – 1957
built at Italy
production 30
predeccesor 1953 Maserati A6GCS/53 Spyder
engine Inline-4
position Front, Longitudinal
aspiration Natural
block material Aluminum
valvetrain DOHC 2 Valves / Cyl
fuel feed 2 Weber 45DCO03
displacement 1994 cc / 121.7 in³
bore 92 mm / 3.62 in
stroke 75 mm / 2.95 in
compression 9.8:1
engine designer Vittorio Bellentani
power 138.7 kw / 186 bhp @ 7200 rpm
specific output 93.28 bhp per litre
bhp/weight 281.82 bhp per tonne
torque 199.3 nm / 147 ft lbs @ 5500 rpm
body / frame Aluminum
driven wheels Front Engine
front tires Pirelli 5.25×16
rear tires Pirelli 5.5×16
front brakes Hydraulic Drums
rear brakes Hydraulic Drums
front wheels F 40.6 x 11.4 cm / 16.0 x 4.5 in
rear wheels R 40.6 x 14.0 cm / 16.0 x 5.5 in
steering Worm Gear
curb weight 660 kg / 1455 lbs
wheelbase 2150 mm / 84.6 in
front track 1250 mm / 49.2 in
rear track 1200 mm / 47.2 in
length 3900 mm / 153.5 in
width 1450 mm / 57.1 in
height 980 mm / 38.6 in
transmission 4 or 5 Speed Manual Transaxle
top speed ~249.4 kph / 155.0 mph
0 – 100 mph ~7.3 seconds
key drivers Stirling Moss, John Fitch, Jo Bonnier, Lance Reventlow,
race victories 1956 Trofeo Supercortemaggiore