1978 Porsche 911 – A New Era with the 3.0L Engine

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Overview

The 1978 Porsche 911 marked a significant evolution for the G-Series, with the introduction of the 3.0L flat-six engine and the launch of the 911 SC (Super Carrera). This year also saw major refinements in reliability, emissions compliance, and handling, setting the foundation for future air-cooled 911s.

Available Models

For 1978, Porsche restructured its lineup, simplifying the model range:

• 911 SC: Featuring the new 3.0L flat-six producing 180 HP.
• 911 Turbo (930): Upgraded with a 3.3L turbocharged engine producing 300 HP.

Development & History

The transition from the 2.7L engine to the 3.0L flat-six brought increased durability and performance. The new engine featured Bosch K-Jetronic fuel injection, improving efficiency and emissions compliance. Additionally, the 911 Turbo (930) received a major upgrade with a new intercooler system and increased displacement to 3.3L, making it the most powerful production 911 at the time.

Engine & Performance

The 1978 Porsche 911 lineup introduced the robust 3.0L engine, while the 911 Turbo (930) saw significant improvements in power and stability.

• Engine: 3.0L Flat-6 (911 SC), 3.3L Turbo Flat-6 (911 Turbo)
• Horsepower: 180 HP (911 SC), 300 HP (911 Turbo)
• Fuel System: Bosch K-Jetronic Fuel Injection
• Transmission: 5-speed manual (911 SC), 4-speed manual (911 Turbo)
• Drivetrain: Rear-Wheel Drive (RWD)
• 0-60 mph: 6.3 seconds (911 SC), 5.0 seconds (911 Turbo)
• Top Speed: 140 mph (911 SC), 165 mph (911 Turbo)

Design & Features

The 1978 Porsche 911 retained the classic G-Series body style but introduced wider rear fenders for better aerodynamics and stability.

• Body Style: Coupe and Targa
• Seating Capacity: 4
• Weight: 2615 lbs (911 SC), 2850 lbs (911 Turbo)
• Chassis Code: 911
• Wheelbase: 89.4 inches
• Notable Features: Wider rear fenders, upgraded suspension, improved braking system

Production & Rarity

The 1978 model year established a new standard for reliability and performance, setting the stage for the successful SC lineup.

• Production Start: 1978
• Factory of Origin: Stuttgart, Germany

FAQs

What makes the 1978 Porsche 911 special?

It introduced the 3.0L flat-six engine, which became a benchmark for reliability and performance in the 911 lineage.

How many 1978 Porsche 911s were produced?

Porsche produced approximately 15,000 units across all variants.

What is the value of a 1978 Porsche 911 today?

Standard models range from $40,000 to $120,000, while 911 Turbo models can exceed $250,000.