Performance Review: Porsche 928 GTS 5.4L V8 - [1991]

Figures & Specs Summary:

Porsche 928 Performance Review.

Introduction:

This edition of the Porsche 928 GTS 5.4L V8 is the 5 speed / Manual version and was first brought out in 1991. This was at around the same time as the introduction of the 1991 Jaguar XJ R-15 6.0 V12 and the 1992 Bugatti EB110 SuperSport.This particular Porsche 928 has a 5397cc Naturally Aspirated Petrol powerplant with 8 cylinders in a V formation.

Alternative Petrol V8's includes the 2023 Dodge Challenger SRT Demon 170

The 928 shares its Petrol V8 engine configuration with the likes of the 2023 Dodge Challenger SRT Demon 170 and the 2023 Ferrari SF 90 XX Spider 4.0 V8 Turbo. If you're looking for other fast cars which share the 928's Rear Wheel Drive, Coupe combination then how about the 1982 Fiat X1/9 1.5 8V or the 1965 Aston-Martin DB6 1965.

Power and Weight:

Weighing in at 1600 kgs (3527 lbs) this makes the Porsche 928 GTS 5.4L V8 in the same weight category as the 2021 Lamborghini Aventador LP 780-4 Ultimae Roadster 6.5 V12 or the give or take 50kg.

The Porsche 928 shares the same bhp with the 2024 Mazda CX-90 S 3.3 Turbo (340 bhp)

In terms of power the 5397cc 32V V8 engine produces 345 bhp (257 kW) @ 5700 rpm similar to the 2024 Mazda CX-90 S 3.3 Turbo (340 bhp) or the 2024 Chevrolet Corvette E-Ray 6.2 V8 Petrol Hybrid C8 (369 bhp).

The Naturally Aspirated V8 throws out 369 lb-ft (500.2 Nm) @ 4250 rpm placing it with cars of similar torque performance figures such as the 2024 Mazda CX-90 S 3.3 Turbo (369 lb-ft) or the 2023 Porsche Cayenne Coupe 3.0 V6 Turbo (369 lb-ft).

Power to Weight:

If one combines the weight with power or torque performance for the Porsche 928 you can get a better idea of it's real world performance.

The 2020 Mini Cooper John Cooper Works GP (240.6 bhp per ton) has similar Bhp Per Ton stats as the Porsche 928.

The Porsche 928 has a Power to weight ratio of 215.6 bhp per ton and 230.6 lb-ft per ton. Bhp Per Ton figures of the 1991 928 competing with the 2020 Mini Cooper John Cooper Works GP (240.6 bhp per ton) or the 2021 Mercedes SL Class 55 4Matic+ 4.0 V8 Twin Turbo (240.5 bhp per ton).

Power to Weight(cont.):

If you agree with the late great Carroll Shelby then arguably an even better indicator of potential performance, Torque. Use weight as well and you end up with - Torque per ton, with the Porsche 928 generating around 230.6 lb-ft per ton. If you're curious as to what other cars have as much torque to weight then look no further than the 2020 Ford Mustang Shelby GT350 5.2 V8 (255.3 lb-ft per ton) or the 2020 Ford Mustang Shelby GT350R 5.2 V8 (255.3 lb-ft per ton).

Acceleration:

With a 0-60mph time of 5.40 secs or a 0-100km/h (0-62mph) of 5.6 secs, this made the Porsche 928 GTS 5.4L V8 as fast as the 2023 Porsche Cayenne Coupe 3.0 V6 Turbo (5.40 secs) the 2023 Porsche Cayenne 3.0 V6 Turbo (5.40 secs) the 2019 Volkswagen-VW Golf GTi TCR 2.0 Turbo (5.40 secs) the or the 2019 Jaguar F Type 2.0 Turbo Cabriolet (5.40 secs). This Porsche 928 GTS 5.4L V8 is also faster than the 2019 Ford Focus ST 2.3 EcoBoost (5.50 secs) the 2017 Honda Civic Type R 2.0i 16v Turbo - FK8 (5.50 secs) the 2017 Seat Leon SC Cupra 300 (5.50 secs) the and the 2017 Seat Leon Cupra 300 DSG (5.50 secs).

Quarter Mile time is a close race between the 928 and the 2009 Tesla Roadster Electric 248bhp

When talking about the performance of the Porsche 928 on the drag strip it can reach a quarter mile in an estimated 13.61 secs @ 100.5 mph. Similar performance down the quarter mile can be found with the the 2009 Tesla Roadster Electric 248bhp (13.55 secs), the 2012 Audi A4 S4 3.0L V6 Supercharged (13.56 secs), and the 2011 Morgan 3 Wheeler 2.0l V-Twin (13.56 secs).

Top Speed:

Modern performance cars are often artificially restricted to 155mph. The 1991 version of the Porsche 928 GTS 5.4L V8 has a maximum speed of 168mph.

Top Speed of the 1991 928 equals the 2020 Porsche Boxster GTS 4.0 PDK 982 (179 mph)

If maxing out your car on the AutoBahn is your thing and you're wondering what's faster than the 1991 Porsche 928 GTS 5.4L V8 then how about the 2020 Porsche Boxster GTS 4.0 PDK 982 (179 mph), the 2017 Maserati Quattroporte S Q4 3.0 V6 Twin Turbo (179 mph), or the 2017 Maserati GranCabrio Sport 4.7 V8 (179 mph).

Related Links:

1991 928 Rivals List.

A Brief History of Porsche

Car Comparison