Performance Review: Triumph Stag 3.0 V8 Convertible Mk2 - [1977]

Figures & Specs Summary:

Triumph Stag Performance Review.

Introduction:

This edition of the Triumph Stag 3.0 V8 Convertible Mk2 is the 4 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 Triumph Stag has a 2997cc Naturally Aspirated Petrol powerplant with 8 cylinders in a V formation.

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

The Stag 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 Stag's Rear Wheel Drive, Cabriolet 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 1197 kgs (2638 lbs) this makes the Triumph Stag 3.0 V8 Convertible Mk2 in the same weight category as the 2018 McLaren Senna 4.0 V8 Twin Turbo or the give or take 50kg.

The Triumph Stag shares the same bhp with the 2022 Mini Cooper Countryman John Cooper Works 1.5 Turbo (134 bhp)

In terms of power the 2997cc 16V V8 engine produces 144 bhp (107 kW) @ 5700 rpm similar to the 2022 Mini Cooper Countryman John Cooper Works 1.5 Turbo (134 bhp) or the 2020 Audi A1 A1 Sportback 35 TFSI S tronic S line (148 bhp).

The Naturally Aspirated V8 throws out 167 lb-ft (226.4 Nm) @ 3500 rpm placing it with cars of similar torque performance figures such as the 2022 Mini Cooper Countryman John Cooper Works 1.5 Turbo (162 lb-ft) or the 2020 Abarth 695 70th Anniversario 1.4 Turbo (184 lb-ft).

Power to Weight:

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

The 2000 Vauxhall-Opel Omega Evolution 500 (145.3 bhp per ton) has similar Bhp Per Ton stats as the Triumph Stag.

The Triumph Stag has a Power to weight ratio of 120.3 bhp per ton and 139.5 lb-ft per ton. Bhp Per Ton figures of the 1977 Stag competing with the 2000 Vauxhall-Opel Omega Evolution 500 (145.3 bhp per ton) or the 2012 Mini Cooper John Cooper Works Countrman (145.2 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 Triumph Stag generating around 139.5 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 2005 Volkswagen-VW Phaeton 6.0 W12 (164.5 lb-ft per ton) or the 2006 Nissan 350Z Roadster 300bhp (164.3 lb-ft per ton).

Acceleration:

With a 0-60mph time of 9.30 secs or a 0-100km/h (0-62mph) of 9.6 secs, this made the Triumph Stag 3.0 V8 Convertible Mk2 as fast as the 2022 Mini Cooper Countryman John Cooper Works 1.5 Turbo (9.30 secs) the 2000 Alfa-Romeo 166 2.0 ts (9.30 secs) the 1993 Vauxhall-Opel Corsa 1.6 GSi 16V (9.30 secs) the or the 1991 Peugeot 205 Rallye 1.3 8v (9.30 secs). This Triumph Stag 3.0 V8 Convertible Mk2 is also faster than the 1986 Ford Granada Scorpio 4x4 2.8 V6 (9.40 secs) the 1973 Vauxhall-Opel Firenza Droop Snoot 2.3 Litre (9.40 secs) the 1955 Ford Thunderbird 292 Fordomatic 1st Gen. (9.40 secs) the and the 2001 Alfa-Romeo 147 TS Selespeed (9.50 secs).

Quarter Mile time is a close race between the Stag and the 1954 Mercedes 300 SL Gullwing Coupe

When talking about the performance of the Triumph Stag on the drag strip it can reach a quarter mile in an estimated 16.62 secs @ 82.3 mph. Similar performance down the quarter mile can be found with the the 1954 Mercedes 300 SL Gullwing Coupe (16.54 secs), the 1985 Alpine GTA V6 Turbo (16.54 secs), and the 2005 Bentley Azure Continental Coupe Le Mans Series (16.55 secs).

Top Speed:

Modern performance cars are often artificially restricted to 155mph. The 1977 version of the Triumph Stag 3.0 V8 Convertible Mk2 has a maximum speed of 120mph.

Top Speed of the 1977 Stag equals the 2018 Toyota Sequoia TRD Sport 5.7 V8 (131 mph)

If maxing out your car on the AutoBahn is your thing and you're wondering what's faster than the 1977 Triumph Stag 3.0 V8 Convertible Mk2 then how about the 2018 Toyota Sequoia TRD Sport 5.7 V8 (131 mph), the 2011 Abarth 500 Essessee 1.4 Turbo (131 mph), or the 2011 Abarth 500C Essesse 1.4 Turbo (131 mph).

Related Links:

1977 Stag Rivals List.

A Brief History of Triumph

Car Comparison