Ferrari 735 S

The history of the Ferrari 735 S

Ferrari 735 S
Ferrari 735 S
The Ferrari 735 S was manufactured in 1953 with the aim of experimenting with new design solutions to succeed in competition. It stood out for its small light body and a 4-cylinder engine.

Basically, the Ferrari 735 S differs from other similar Ferrari by its small size, low weight and a 4-cylinder engine. Only 3 specimens of 735 S were produced, all used in competitions.

In June 1953 Monza's race saw the debut of two new Ferrari cars, the 735 S and 625 TF. The 735 S was driven by Alberto Ascari and 625 TF by Mike Hawthorn. They both performed well. Ascari led much of the competition with the Ferrari 735 S until his fortune ran out: he collided with a Ferrari 250 MM.

The final result was not optimal but the test proved that this new generation of vehicles was working well (especially the new 4-cylinder engines) and had great potential.

Design of the Ferrari 735 S

In 1953 Ferrari designed this small racing car on the basis of a tubular chassis with 2,250 mm wheelbase. The 735 S had a 4-cylinder engine designed by Aurelio Lampredi. The block was lightweight alloy and used a four-speed manual gearbox.

The body of the Ferrari 735 S was designed by the Italian company “Carrozzeria Autodromo” especially for competitions. With a Barchetta design, the designers were cunning to conceive this vehicle with very short overhangs and built-in lights with glasses that encapsulated them to improve aerodynamics.

The curved silhouette, the small grille under the trunk and the small windshield that prevented the wind from impacting directly on the rider's face showed a cautious and intelligent work on the part of the designers.

Technical specifications of Ferrari 735 S

  • Front engine 4 cylinders in line
  • Displacement: 2.942 cm3
  • 8 SOHC valves
  • Compression ratio: 9 to 1
  • 2 Carburetors Weber 50 DCOA
  • Manual 4-speed gearbox
  • Rear wheel drive
  • Brakes: to drum on 4 wheels (hydraulic)
  • Front suspension: independent
  • Rear suspension: Dion bridge

  • Power: 225 hp at 6.800 rpm

  • Top speed: 240 km/h

  • Wheelbase: 2.250 mm

  • Rims: 16 inches
  • Weight: 750 kg
  • Power/Weight Ratio: 0.30 hp/kg

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© Adrián Blanco 2006 — Prohibited the total or partial reproduction of text and/or images without explicit written consent of the author.

por Adrian Blanco