Porsche 928 Tire Pressures

To find tires for your Porsche 928 see our Porsche 928 Tires page.

The ideal Porsche 928 tire pressure is 36/44 PSI PSI.
To find the ideal tire pressures to match your car's year, model, and chosen tires follow the link to our Porsche 928 Tire Pressure Guides.

For a 1978–1979 Porsche 928 Longstone recommends the 215/60 WR 15 PIRELLI CINTURATO CN36 or the 225/50 YR 16 PIRELLI CINTURATO P7 rear.
For a 1980–1982 Porsche 928 Longstone recommends the 225/50 YR 16 PIRELLI CINTURATO P7.
For a 1980–1986 Porsche 928 S Longstone recommends the 225/50 YR 16 PIRELLI CINTURATO P7.
For a 1987–1991 Porsche 928 S4 Longstone recommends the 225/50 YR 16 PIRELLI CINTURATO P7 & 245/45YR16 PIRELLI CINTURATO P7.
For a 1989–1990 Porsche 928 GT Longstone recommends the 225/50 YR 16 PIRELLI CINTURATO P7 & 245/45YR16 PIRELLI CINTURATO P7.
To see more information on Porsche 928 tires follow the link to our Porsche 928 Tire Section.
You can also see a range of period Porsche 928 Tire Pressure Guides from tire manufacturers to check your precise model of 928.

1986 Porsche 928 Advert

Porsche 928 Tires

Porsche 928 S

Porsche 928 Tires (1975–1981)

For enthusiasts of the early Porsche 928 standard models, Longstone Tyres recommends the 215/60 WR 15 PIRELLI CINTURATO CN36 or the 225/50 YR 16 PIRELLI CINTURATO P7 for vehicles up to the year 1982. In particular, for the pre-1982 Automatic Porsche 928, the 215/60 WR 15 PIRELLI CINTURATO CN36 is suggested to match the original specifications and ensure optimal performance. It's important to note that tires with a profile below 70%, such as the 225/50 YR 16 PIRELLI CINTURATO P7, should not be equipped with innertubes.

Specifically for the 1980–1982 automatic Porsche 928 front and rear. Meanwhile, the Porsche 928 S models from the first half of the 1980s should be fitted with 225/50 YR 16 PIRELLI CINTURATO P7 front and rear, a tire that aligns perfectly with the period's performance requirements and the car’s design.

From 1987 to 1991, the Porsche 928 S4 was equipped with 225/50YR16 PIRELLI CINTURATO P7 tires at the front and 245/45YR16 PIRELLI CINTURATO P7 tires at the rear.

This same 225/50 YR 16 PIRELLI CINTURATO P7 front 245/45YR16 PIRELLI CINTURATO P7 rear tire setup was adopted by the Porsche 928 GT starting in 1989. Another tire option available for the Porsche 928 was the Goodyear Eagle GS-C, but it is no longer being produced.

Finally, with the introduction of the 928 GTS in the early 1990s, Porsche shifted the 928 series to 17-inch wheels, accommodating more generic modern tire sizes.

Porsche 928 S Red

Porsche 928 Tires Explained

Porsche 928 History

The Porsche 928, a grand tourer, was introduced as a potential successor to the Porsche 911 during the 1970s when Porsche's management, particularly managing director Ernst Fuhrmann, believed the 911 was approaching its developmental peak. Fuhrmann, envisioning a shift towards high-end grand touring vehicles, initiated the development of the 928 in 1971 as a luxury sports coupe to compete in the lucrative US market and with German brands like Audi and Mercedes.

Development and Design

Porsche began the 928's development without a predecessor to build upon. The team purchased models from competitors for development purposes. The 928 was designed to be powered by a new V8 engine, featuring a front-engine and rear-wheel drive, two doors, and a 2+2 seating arrangement. The development process involved using various testbed vehicles, including a Mercedes-Benz SL and an Opel Admiral, to finalize the 928's design.

The 928 featured a high-displacement, all-alloy M28 V8 engine, initially a 16-valve, 4.5-liter V8 producing 240 hp in Europe and around 219 hp in North America. Porsche also prioritized handling, integrating a transaxle combining the transmission, axle, and differential for a 50/50 weight ratio. Transmission options included a five-speed dog leg manual and a three-speed, later four-speed, automatic transmission.

Porsche 928 PIRELLI CINTURATO P7 Poster

Porsche 928 GTS

Styling and Aerodynamics

The 928's body was ahead of its time in aerodynamics, mostly made of aluminum alloy to save weight, with a large hatchback for substantial luggage space. Its distinctive design featured pop-up headlights, big taillights, and a low, squat stance. Despite being larger, the 928 was lighter than its contemporaries like the Mercedes-Benz SL. Model Evolution.

Over its production life from 1978 to 1995, the 928 underwent several changes. The original design lacked front and rear spoilers, which were added in later "S" and "S2" models. The first-generation cars had a distinct 'Shark Nose' profile. In 1987, the exterior was redesigned for a smoother look, with the rear spoiler becoming a separate wing and side skirts added. Wheel styles also evolved, with early models featuring "phone dial"-style wheels and later models using different designs including "Club Sport" and "Design 90" wheels.

The engine underwent upgrades, with power increases in different models, leading to the 928 S4 variant in 1987, which featured significant styling updates and a more powerful engine. Special models like the Club Sport and GT were introduced, offering a sportier setup and more power. The final version, the 928 GTS, arrived in the early 1990s with a 5.4-liter engine, larger front brakes, and flared fenders.

Racing and Records

While Porsche's Racing Department never officially entered a racing 928 as a pure works entry, they did create a 928 GTR to compete in racing events. For the 1984 24 Hours of Daytona, an experimental "All-aluminium" 928S was sent to demonstrate the 928's performance, where it finished 15th overall and 4th in its class. A new closed-course speed record was set by a Porsche 928 reaching 234.434 MPH in 2020, making it the world's fastest 928.

Legacy and Impact

Despite some opinions to the contrary, the 928 was not a mistake for Porsche. It, along with the 924, opened new markets for Porsche and complemented the 911, offering a more comfortable alternative for daily driving. The 928's development paved the way for future models like the Cayenne, Boxster, Macan, Panamera, and Taycan, expanding Porsche's lineup beyond the 911 and contributing to the brand's long-term success.

The Porsche 928 remains a significant model in automotive history, marking a departure from Porsche's traditional design and engineering approach and laying the groundwork for the company's future direction.

Porsche 928 S4

Porsche 928 Tire Pressure & Fitment Guides

Advancements in the composition of rubber, safety protocols, and the production processes for tyres necessitate a re-evaluation of the conventional guidelines for tyre pressures. This viewpoint was shared in a recent discussion with a Pirelli specialist.

"Our philosophy is to reproduce as closely as possible the original tire characteristics using new processes and materials thus to maintain the handling of the vehicle the same. This means, yes we maintain the original handbook pressures.”