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In 1929 the 6C 1750 was created as a replacement for the aging 6C 1500. The name, 6C 1750, was a combination of the six-cylinder engine and the 1752 cc engine displacement. The 1750 continued the strong racing legacy Alfa Romeo had established with their P2 Grand Prix car and the 1500. The design for the Sport editions were simply yet sophisticated. They used a light frame coupled with a small inline-six cylinder supercharged engine capable of producing nearly 100 horsepower.
The 1750 was created in 1929 and produced until 1933, during this time nearly 2500 examples were created. There were six series each achieving a higher level of sophistication over the prior series. As was the case with many manufacturers at the time, Alfa Romeo supplied the rolling chassis and commissioned coachbuilders such as Zagato, Touring, Stablimenti Farina, Castagna, and James Young to finish the body. The result was a wide range of specifications and creativity.
The design was handled by Vittorio Jano, an individual Enzo Ferrari, an employee of Alfa Romeo, had been able to lure from Fiat. Jano had been tasked with designing the 6C 1500 which had been powered by a six-cylinder engine. He was then tasked with designing the 6C 1750 which was debuted at the 1929 Rome Motorshow. It shared many similarities with its predecessor; the biggest difference being an enlarged engine. Because of the larger engine it was capable of being outfitted with larger, heavier bodies.
The first version of the 1750 was the Turismo. The second version was the Sport which sat atop a shorter wheelbase and was given an improved engine. The most powerful and competitive versions of the 1750 was the Super Sport or Gran Sport. In this form they were often campaigned by the factory and privateers in a plethora of sporting events. They were equipped with supercharged engines and sat atop a short wheelbase. Most of the 360 examples received coachwork courtesy of Zagato, mainly because of the lightweight design. Only 44 examples of the sixth series Gran Sport were produced. The Gran Sport was successfully campaigned at events like the Mille Miglia, Targa Florio, and Tourist Trophy where it emerged victorious.
In 1931 the 8C 2300 replaced the Gran Sport. The 1750 Gran Sport is one of the finest sporting examples of its time. The 1750 continued Alfa Romeo's reputation for fun-to-drive vehicles that were competitive and durable.
The 1750 was created in 1929 and produced until 1933, during this time nearly 2500 examples were created. There were six series each achieving a higher level of sophistication over the prior series. As was the case with many manufacturers at the time, Alfa Romeo supplied the rolling chassis and commissioned coachbuilders such as Zagato, Touring, Stablimenti Farina, Castagna, and James Young to finish the body. The result was a wide range of specifications and creativity.
The design was handled by Vittorio Jano, an individual Enzo Ferrari, an employee of Alfa Romeo, had been able to lure from Fiat. Jano had been tasked with designing the 6C 1500 which had been powered by a six-cylinder engine. He was then tasked with designing the 6C 1750 which was debuted at the 1929 Rome Motorshow. It shared many similarities with its predecessor; the biggest difference being an enlarged engine. Because of the larger engine it was capable of being outfitted with larger, heavier bodies.
The first version of the 1750 was the Turismo. The second version was the Sport which sat atop a shorter wheelbase and was given an improved engine. The most powerful and competitive versions of the 1750 was the Super Sport or Gran Sport. In this form they were often campaigned by the factory and privateers in a plethora of sporting events. They were equipped with supercharged engines and sat atop a short wheelbase. Most of the 360 examples received coachwork courtesy of Zagato, mainly because of the lightweight design. Only 44 examples of the sixth series Gran Sport were produced. The Gran Sport was successfully campaigned at events like the Mille Miglia, Targa Florio, and Tourist Trophy where it emerged victorious.
In 1931 the 8C 2300 replaced the Gran Sport. The 1750 Gran Sport is one of the finest sporting examples of its time. The 1750 continued Alfa Romeo's reputation for fun-to-drive vehicles that were competitive and durable.
| Photos grouped by event | |||
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Monterey Historic Automobile Races at Laguna Seca |
Meadow Brook Concours d'Elegance |
 The Quail: A Motorsports Gathering |
 Monterey Historic Automobile Races |
1930 Alfa Romeo 6C 1750 GS Zagato |
|
| Year | 1930 |
| Make | Alfa Romeo |
| Model | 6C 1750 GS Zagato |
| Engine Location | Front |
| Drive Type | Rear Wheel |
| Production Years for Series | 1929 - 1933 |
| Body Designer | Zagato |
| Weight | 920 kg | 2028.6 lbs |
| Combined MPG | 0.00 |
| Chassis / Engine Numbers Shown | |
| Chassis Number | 8513053 |
| Performance | |
| Top Speed | 90 mph | 144.8 km/h Similar top speeds |
| Engine | |
| Engine Configuration | S |
| Cylinders | 6 |
| Aspiration/Induction | Supercharged |
| Alfa-Romeo Roots Type | |
| Displacement | 1752.00 cc | 106.9 cu in. | 1.8 L. |
| Valves | 12 valves. 2 valves per cylinder. |
| Valvetrain | DOHC |
| Horsepower | 85.00 HP (62.6 KW) @ 4400.00 RPM |
| Torque | 126.00 Ft-Lbs (170.9 NM) @ 2000.00 RPM |
| HP to Weight Ratio | 23.9 LB / HP (Vehicles with similar ratio) |
| HP / Liter | 47.2 BHP / Liter |
| Compression Ratio | 5.00:1 |
| Main Bearings | 5 |
| Fuel Type | Gasoline - Petrol |
| Fuel Feed | Carburetor |
| Memini DOA carburetor | |
| Block | Cast-iron |
| Vehicles with similar horsepower and weight | |
| Standard Transmission | |
| Gears | 4 |
| Transmission | Manual |
| Final Drive | 4.91 |
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| View Specifications |
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| Related Articles and Event Coverage |
| Monterey Historic Automobile Races at Laguna Seca |
| Meadow Brook Concours d'Elegance |
| The Quail: A Motorsports Gathering |
| Monterey Historic Automobile Races |
| 1930 Alfa Romeo models |
| 6C 1500 Testa Fissa Zagato Spider |
| 6C 1750 GS |
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