
The Datsun Z-car, introduced as the 240Z in the late 1960s, is a highly-regarded Japanese sports car. Since its launch, Nissan has manufactured seven generations of Z-cars, with the most recent iteration, simply called the Nissan Z, in production since 2022. The 280Z, released in 1975, was the first Datsun Z-car to feature fuel injection, which boosted power and fuel efficiency. This model was equipped with a Bosch L-Jetronic Fuel injection system, which was designed to increase the airflow in the fuel mixture, resulting in improved engine performance.
| Characteristics | Values |
|---|---|
| Year of Launch | 1969 |
| Name | Datsun 240Z |
| Engine Displacement | 2.4-liter inline-six |
| Fuel Injection System | Bosch L-Jetronic Fuel Injection System |
| Horsepower | 149 |
| Sales in 1973 | 46,000 |
| Sales in 2019 | 3302 |
| Fuel Tank Replacement | Dutch-designed factory replacement fuel tank |
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What You'll Learn
- The 1975-1978 Datsun 280Z featured fuel injection
- The 280Z's engine produced 149 horsepower
- The 280ZX was the first Z-car with a turbocharged system
- Datsun's fuel-injected system offered better power and gas mileage
- The 280Z's fuel injection system was based on the Bosch L-Jetronic Fuel injection system

The 1975-1978 Datsun 280Z featured fuel injection
The 280Z was a response to consumer demands for more power and improved performance. To meet these expectations, Datsun/Nissan made several notable enhancements. Firstly, they increased the engine displacement to 2.8 litres, resulting in a more powerful engine capable of producing 149 horsepower. This upgrade addressed the shortcomings of the previous 2.6-litre engine in the 260Z, which struggled to meet consumer expectations for propulsion.
However, the increased engine size also meant a heavier car, which could impact performance and fuel efficiency. To counteract this, Datsun introduced a state-of-the-art fuel injection system, based on the Bosch L-Jetronic design. This fuel injection technology, introduced in 1975, improved power delivery and fuel economy, resulting in an impressive 22 mpg. This was a significant advantage over carbureted systems, which consumed fuel at a much higher rate.
The fuel injection system in the 280Z played a crucial role in optimising the engine's performance. The "L" in the Bosch L-Jetronic system stands for the German word "air," reflecting its function of introducing more air into the fuel mixture. This enhanced air-fuel combination was key to unlocking the engine's full potential, resulting in increased power and responsiveness.
The 1975-1978 Datsun 280Z, with its fuel-injected engine, exemplifies Datsun's commitment to incorporating sophisticated technologies into their vehicles. This model, with its improved performance, fuel efficiency, and iconic status, remains a testament to Datsun's engineering prowess and its ability to adapt to evolving consumer demands.
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The 280Z's engine produced 149 horsepower
The Datsun 280Z, introduced in 1975, was the first Z-car to feature fuel injection. The engine displacement was increased to 2.8 litres, and the Bosch fuel injection system helped the 280Z's engine produce 149 horsepower. This was a significant improvement over the previous carbureted systems, offering better power and gas mileage.
The 280Z's fuel injection system was based on the Bosch L-Jetronic Fuel injection system, which was designed to bring more air into the fuel mixture. This, combined with gasoline, created the engine power of the 280Z. While the car was not a "rocket ship", it offered a good balance of performance and fuel economy, returning an impressive 22 mpg.
The 280Z was a step above the average, and its fuel injection system was one of the best available in the 1970s. The increased power output helped compensate for the increased weight of the previous model, the 260Z. The 260Z, introduced in 1974, had an engine displacement of 2.6 litres and produced 154 hp, except in most areas of the US where power was decreased to 139 hp due to emissions regulations.
The 280Z's engine and fuel injection system were a significant upgrade over the previous Datsun Z-cars, which included the 240Z (1969-1973) and the 260Z. The 240Z was the first Z-car, introduced in 1969 in Japan as the Nissan Fairlady Z and as the Datsun 240Z for international customers. It became a sports car icon, with excellent performance, dependability, and strong sales. The 280Z built on this success, offering improved performance and luxury features to meet growing consumer demands.
The 280Z was part of the first generation of Z-cars, which ended production in 1978. The second generation, known as the 280ZX, was introduced in 1979 and continued the use of fuel injection, with turbocharged models introduced in 1981. The 280ZX was flabbier and more embellished, reflecting the style of the late 1970s.
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The 280ZX was the first Z-car with a turbocharged system
The Datsun Z-car, introduced as the 240Z in the late 1960s, has become a great Japanese icon, alongside the likes of Nikon cameras, fatty tuna sushi, and Katana swords. The 280ZX, introduced in 1979, was a complete redesign, retaining only the L28 inline-six engine and other driveline components from the 280Z. The 280ZX was heavier and more luxurious than its predecessor, with improved aerodynamics and a focus on driver comfort and refinement.
The 280ZX Turbo was released during a time when turbo was king. Early turbocharged cars like the BMW 2002 Turbo and the Porsche 911 Turbo had whetted the motoring world's appetite for forced induction, and Nissan was quick to develop a turbocharged version of their halo vehicle, the 280ZX. The 280ZX Turbo was an early 1980s legend, and it was the fastest Japanese import on the American market at the time of its release. It offered a more powerful engine, improved fuel economy, and enhanced comfort features compared to its predecessor.
The 280ZX was produced from 1978 until 1983, after which it was succeeded by the Nissan 300ZX, marking the official retirement of the Datsun nameplate from the series. In 1983, the final year of production for the 280ZX, the car offered a 5-speed manual transmission, leather interior, and digital interior packages. It also featured a T-bar roof with glass panels, climate control, cruise control, and the "Ambience" sound system.
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Datsun's fuel-injected system offered better power and gas mileage
The Datsun Z-car, introduced as the 240Z in the late 1960s, is considered one of the greatest Japanese cars ever made. The 240Z was built with ordinary and familiar parts, but its exceptional performance and build quality elevated consumer expectations for sports cars.
In 1971, Datsun began marketing vehicles with their version of a fuel-injected system. This system offered better power and gas mileage than carbureted systems, which were known for guzzling gasoline. The fuel-injected system, based on the Bosch L-Jetronic Fuel injection system, was first introduced in the 1975 Datsun 280Z for the North American market. This model featured a 2.8-liter engine that produced 149 horsepower, a significant improvement over the previous 260Z, which had an engine displacement of 2.6 liters and 154 horsepower (except in most areas of the US, where power was decreased to 139 horsepower due to emissions regulations).
The fuel-injected 280Z offered excellent fuel economy for a high-end performance car, returning an impressive 22 mpg. This was well above the average fuel economy for vehicles in the 1970s, which was under 12 mpg. The increased power and torque of the 280Z's 2.8-liter engine helped compensate for the increased weight of the last model of the first-generation Z car.
The turbocharged 280ZX, introduced in 1981, further enhanced the power and performance of the Z-car. This model produced 180 bhp and 203 pound-feet of torque, a significant upgrade over the naturally aspirated 280Z. The 280ZX also featured luxurious appointments, such as crushed velour upholstery, T-tops, and a flabby suspension, reflecting the consumer demands of the time.
In summary, the Datsun Z-cars with fuel-injected systems, namely the 280Z and 280ZX, offered improved power, torque, and gas mileage compared to their carbureted predecessors. These advancements, along with the Z-car's iconic design and performance, solidified its place as one of the most beloved sports cars of its time.
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The 280Z's fuel injection system was based on the Bosch L-Jetronic Fuel injection system
The Datsun 280Z, released in 1975, was the first Z-car to feature fuel injection. This was in the form of the Bosch L-Jetronic Fuel Injection system, an analogue fuel injection system that was designed, created, and marketed by Robert Bosch.
The L-Jetronic system is designed to bring more air into the fuel mixture, creating the engine power of the 280Z. The "L" in L-Jetronic stands for the German word for air. This system was one of the best fuel injection systems available in the 1970s, as long as the car was properly maintained.
The L-Jetronic system is used on a variety of cars, including the Datsun 280Z and 280ZX, all U.S. spec fuel-injected Fiats and Lancias, the Toyota Supra Mark 1, and many others. The system is mostly used to deal with things like cold starting, warm-up, idle, and full throttle.
The fuel injection system in the 280Z improved power levels and fuel economy. The engine displacement of the 280Z was increased to a 2.8-liter inline-six, which could produce 168 horsepower and 144 pound-feet of torque. This was a significant upgrade from the previous 2.6-liter inline-six in the 260Z, which did not provide the desired level of performance for consumers.
The 280Z was a popular car, with strong sales and impressive fuel economy of 22 mpg. The addition of the Bosch fuel injection system helped to increase power levels and improve the overall performance of the car.
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Frequently asked questions
The 1975 Datsun 280Z was fuel-injected. The fuel injection system was based on the Bosch L-Jetronic Fuel injection system.
The Datsun 280Z returned an impressive 22 mpg, which was considered very good for a high-performance car in the 1970s.
The Datsun 280Z had a 2.8-liter inline-six engine, which was an upgrade from the 2.4-liter inline-six in the 240Z and the 2.6-liter inline-six in the 260Z.
Datsun began marketing vehicles with their version of a fuel-injected system in 1971. However, the fuel-injected Z-car did not reach the United States until 1975 with the Datsun 280Z.











































