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1948 Maserati 4CLT/48

Chassis and engine changes made to the experimental Maserati 4CLs eventually coalesced into the 4CLT, the appended T denoting its tubular chassis.

The improvements in torsional rigidity that the tubular construction brought were required to counteract the increases in torque and power resulting from the twin-supercharger upgrade of the elderly inline-4 engine. Power was up to approximately 260 bhp (194 kW), from the 4CL’s 220. Other changes included the use of roller bearings for the crankshaft, forged (rather than cast) rear suspension components, and the chassis was designed to run with hydraulic dampers from the outset.

The first variant of the 4CLT earned its “Sanremo” nickname from the first race for which it was entered: the 1948 Sanremo Grand Prix. The name stuck, as Alberto Ascari took his 4CLT to victory in its maiden race appearance. A portent of things to come, Villoresi and Reg Parnell won five of the 1948 season’s remaining races.

In the first year of the Formula One World Championship, a Sanremo scored what was to be the Maserati’s best Championship finish, when Louis Chiron took third place at his home Grand Prix: the 1950 Monaco Grand Prix. The last 4CL variant to compete in the World Championship was a 4CLT/48 modified by the Arzani-Volpini team, that failed to even qualify for the 1955 Italian Grand Prix.

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1948 Maserati 4CLT/48 In Detail

tags Maserati 4CL
engine Supercharged Inline-4
valvetrain DOHC 4 Valves / Cyl
displacement 1490 cc / 90.9 in³
bore 78 mm / 3.07 in
stroke 78 mm / 3.07 in
power 193.9 kw / 260 bhp @ 7000 rpm
specific output 174.5 bhp per litre
bhp/weight bhp per tonne
body / frame Aluminum
driven wheels Front Engine
front brakes Hydraulic Drums
f brake size mm / in
rear brakes Hydrualic Drums
r brake size mm / in
front wheels F 43.2 x 8.3 cm / 17 x 3.25 in
rear wheels R 40.6 x 10.2 cm / 16 x 4 in
steering Worm Gear
curb weight 630 kg / 1389 lbs
wheelbase 2500 mm / 98.4 in
front track 1250 mm / 49.2 in
rear track 1200 mm / 47.2 in
length 3850 mm / 151.6 in
width 1400 mm / 55.1 in
height 1000 mm / 39.4 in
transmission 4-Speed Manual
gear ratios :1
top speed ~259.1 kph / 161 mph