Performance Review: Porsche 928 4.5 V8 - [1977]

Figures & Specs Summary:

Porsche 928 Performance Review.

Introduction:

This edition of the Porsche 928 4.5 V8 is the 5 speed / Manual version and was first brought out in 1977. This was at around the same time as the introduction of the 1977 Porsche 911 Turbo and the 1978 BMW M1 3.5 2d Manual.This particular Porsche 928 has a 4474cc 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 1450 kgs (3196 lbs) this makes the Porsche 928 4.5 V8 in the same weight category as the 2023 Lotus Emira First Edition i4 2.0 Turbo or the give or take 50kg.

The Porsche 928 shares the same bhp with the 2022 Mini Cooper John Cooper Works Cabrio 2.0 Turbo (228 bhp)

In terms of power the 4474cc 16V V8 engine produces 241 bhp (179 kW) @ 5250 rpm similar to the 2022 Mini Cooper John Cooper Works Cabrio 2.0 Turbo (228 bhp) or the 2021 Ford Mustang Mach-E AWD (266 bhp).

The Naturally Aspirated V8 throws out 268 lb-ft (363.3 Nm) @ 3600 rpm placing it with cars of similar torque performance figures such as the 2023 Toyota Corolla GR Circuit Edition 1.6 Turbo (273 lb-ft) or the 2022 Toyota Corolla GR 1.6 Turbo (273 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 1967 Dodge Dart GTS Hardtop 6.3 V8 383 (191.2 bhp per ton) has similar Bhp Per Ton stats as the Porsche 928.

The Porsche 928 has a Power to weight ratio of 166.2 bhp per ton and 184.8 lb-ft per ton. Bhp Per Ton figures of the 1977 928 competing with the 1967 Dodge Dart GTS Hardtop 6.3 V8 383 (191.2 bhp per ton) or the 2012 Renault Megane RenaultSport 2.0T 265 (191.0 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 184.8 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 2004 BMW 5 Series M5 V10 4d SMG E60 (209.8 lb-ft per ton) or the 2009 Jaguar XF 4.2 V8 Supercharged (209.6 lb-ft per ton).

Acceleration:

With a 0-60mph time of 6.80 secs or a 0-100km/h (0-62mph) of 7.0 secs, this made the Porsche 928 4.5 V8 as fast as the 2017 Dodge Charger SXT AWD 3.7 V6 (6.80 secs) the 2015 Renault Megane Energy TCe 205 GT 1.6 Turbo (6.80 secs) the 2012 Mini Cooper John Cooper Works Countrman (6.80 secs) the or the 2010 Volkswagen-VW Scirocco 2.0 TSI DSG (6.80 secs). This Porsche 928 4.5 V8 is also faster than the 2015 Audi TT 1.8 TFSI Coupe (6.90 secs) the 2013 Land-Rover Range Rover Sport 3.0 V6 Supercharged (6.90 secs) the 2012 Ford Fiesta ST 1.6 Turbo (6.90 secs) the and the 2009 Renault Clio 2.0 RenaultSport III 200 Cup (6.90 secs).

Quarter Mile time is a close race between the 928 and the 2008 Honda Accord Coupe EX-L

When talking about the performance of the Porsche 928 on the drag strip it can reach a quarter mile in an estimated 14.87 secs @ 92.0 mph. Similar performance down the quarter mile can be found with the the 2008 Honda Accord Coupe EX-L (14.82 secs), the 1991 Audi V8 4.2 V8 Quattro (14.82 secs), and the 2005 Ford Mustang GT 4.6 V8 Convertible (14.82 secs).

Top Speed:

Modern performance cars are often artificially restricted to 155mph. The 1977 version of the Porsche 928 4.5 V8 has a maximum speed of 143mph.

Top Speed of the 1977 928 equals the 2023 Porsche Cayenne 3.0 V6 Turbo (154 mph)

If maxing out your car on the AutoBahn is your thing and you're wondering what's faster than the 1977 Porsche 928 4.5 V8 then how about the 2023 Porsche Cayenne 3.0 V6 Turbo (154 mph), the 2023 Porsche Cayenne Coupe 3.0 V6 Turbo (154 mph), or the 2019 Peugeot 508 PureTech 225 GT S and S (154 mph).

Related Links:

1977 928 Rivals List.

A Brief History of Porsche

Car Comparison