The Triumph TR5 Sports Car

                                                      Triumph TR5

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     The Triumph TR5 sports car was launched in 1967. It used a 6-cylinder engine that was, essentially, a longer stroke version of the unit used in the Triumph 2000 saloon. 

     However, the increased performance came from an improved exhaust manifold, a revised camshaft and, of course, from the more efficient PI system itself. 

     The TR5 was regarded as a stop gap measure, as was the TR3B, between phasing out the TR4A and introducing the redesigned TR6.     

     Triumph was simply not prepared to countenance any additional retooling costs associated with even a partial redesign. 

     For this reason, production only lasted for thirteen months, when 2,947 units were built.

     In terms of external appearance, there was little difference from the TR4A it replaced. However, the principal change was down to the engine.

     The TR4A had a 2.1 litre, 4-cylinder engine with two carburettors, whilst the TR5 used a 2.5 litre, 6-cylinder, fuel injected unit with a compression ratio of 9.5:1. 

     Apart from a modernised grille, the only addition was:

  • A prominant "TR5" badge on the bonnet 
  • "2500" badges on both wings 
  • A badge on the boot saying "Triumph TR5 PI"

Technical data                                 TR5                            TR4A

Production:                                 1967-1968                  1965-1968
Output:                                            2,947                          28,465
Engine: cc                                       2498                            2138
Cylinder, bhp                                  6, 150                          4, 104
Speed mph                                       117                              110

Performance                                    TR5                         TR4A

0-30 mph                                     3.5 secs                     3.5 secs
0-50 mph                                     6.0 secs                     6.0 secs
0- 60 mph                                    8.8  secs                   11.4 secs
0-90  mph                                   21.4 secs                   30.8 secs
Quarter Mile:                 16.8 secs                   18.5 secs                       Overall Fuel Consumption:           19.6 mpg                   25.0 mpg                

                                                1968 Triumph TR5                                                                                     A great shot of a very smart early 150 bhp model...                                                           the onlookers agree. Seen here before its entry in                                                                       the 2015 Shere Hill Climb in Surrey

                                                     1968 Triumph TR5                                                                               This beautiful example was probably one of the first                                                       production models to be fitted with the 150 bhp engine,                                                          and for this reason it stood out. Very desirable

                                                        Triumph TR5

                                         Triumph TR5 and 1937 Austin

                                                1968 Triumph TR5

                                                 1968 Triumph TR5

                                                 1968 Triumph TR5

                                                Full Screen                                                                 Full Screen   

     The use of fuel injection (PI) was almost unheard of in the mid 1960's. Consequently, Triumph made a great play about this and, in its sales literature, proclaimed that the TR5 was the first production sports car to be fitted with PI.

     Retained from the TR4A were:

  • Disc brakes on the front wheels and drums on the rear
  • The well-received independent rear suspension
  • Rack and pinion steering
  • A four speed gearbox with synchromesh on all forward gears
  • The power bulge on the bonnet, which was now no longer required, apart from adding to its appeal

     Furthermore, for the first time, the brakes were power assisted.

     Optional extras included:

  • The very desirable, switch activated, Laycock-de-Normanville overdrive which operated on the top three gears
  • Wire wheels
  • A fixed hardtop with a roof panel that could be removed, and replaced with a vinyl covering, known as a Surrey Top

     A total of 1,161 TR5's were earmarked for the UK, whilst the rest, all left hand drive models, were exported to, amongst others, France, Belgium, and Germany.

     No TR5's were exported to the US. Instead, a version, known as the TR250, was specially built for that market, and was produced in tandem with the TR5.

     An interesting fact was that the TR5 used a Lucas fuel injection system which had a tendency to periodically stop working when the petrol tank was less than a quarter full. 

     In my own TR5, I added a Bosch system and never had any such problem.


     A 1967-68 Triumph TR5, in outstanding condition, could command anything up to £40,000/$64,000, whilst restoration projects start around £15,000/$24,000.


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