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TR5 : The Triumph TR series is one of the great
success stories in the history of the sports car and many would say that the TR5 is the
pick of the line. It was a development of the TR4A which, in turn, was based on the TR3A
chassis, but with independent rear suspension and styling by Giovanni Michelotti. The TR5
had Triumphs 2.5-litre straight-six engine which gave 150 bhp and 168 lb/ft torque
which translated into 120 mph ( 0-60 mph in 8.8 seconds ) with a very flexible mid-range.
The engine has been rebuilt and once won a competition for the best sounding engine at a
meeting in France. Finished in green with a light tan leather interior,
it has the original seats and new carpets The Triumph TR5 was
probably the best of its line, with a new 150bhp six-cylinder engine adapted from the
Triumph 2000 under its Michelotti-designed bonnet, using fuel injection and a hot cam to
produce performance equal to many 1990s sport sedans. It could do 0-60 in under nine
seconds, turn a quarter in under 17 seconds and beat the four-cylinder TR4A to 100 mph by
20 seconds! The independent
rear suspension, carried over from the TR4A but with a beefed-up rear axle and wider
wheels, gave it brawny good looks. British touches like big dials set in a flat wood
dashboard added to its charm.Unfortunately, we never saw this car in the United States.
Instead, what we got was the wimped-out Triumph 250. Yes, it had the same
six-cylinder engine as the TR5, but Triumph engineers couldnt come close to meeting
1968 model year U.S. emissions requirements with the hotter engine, so they installed a
plain vanilla cam and dual Zenith-Stromberg carburetors. Whoopee.At 104 bhp, the TR250
offered absolutely no performance gains over its externally identical four-cylinder
predecessor. To differentiate the 250 from the 4A, they painted a hideous racing
stripe across the front of the bonnet.
Triumph
responded in 1967 with a six cylinder model called the TR5. This continued the basic body
styling and mechanical layout of the TR4A but used a new six cylinder engine with
mechanical fuel injection. The TR5 continued the frontal styling introduced with the TR4A
model, except that on the bonnet the Triumph badge was replaced by a plain plaque that
simply read TR5.The origins of the six cylinder engine go back to the early fifties when a
new four cylinder was developed for the Standard Ten and Triumph Pennant saloons. It was
enlarged to six cylinders to power the Vanguard Six and subsequently for the new Triumph
2000 saloon. It was also used in the Herald based Vitesse and GT6 models. In its four
cylinder form it remained in production until the Spitfire was discontinued in 1980. The
six cylinder gave the car a fast performance at the expense of reliability, due mainly to
the mechanical fuel injection system..
TR250 : North American models were designated the 250 and had twin Stromberg
carburetors instead of the mechanical fuel injection, plus a whole lot of exhaust detoxing
equipment.
After the TR250, it only got worse for Triumph as build quality really started to
deteriorate. In todays market, while a 250 will fetch more than other six-cylinder
Triumphs, it isnt nearly as desirable as the earlier four-cylinder cars. In spite of
all the negative aspects of the TR250, its British sports car touches generated enough
U.S. demand that Triumph produced three TR250s for every TR5 and fewer than 3,000 TR5s
left the factory. The result is that the TR5 is very much in demand today in Britain, and
about as hard to find as an old-fashioned pub. The few that do come on the market often
wind up being sold, as this one was, into European collections. The money paid for this
TR5 is reasonable for a car that has average mileage and is in good condition.Should one
actually turn up at a U.S. auction, even with its right-hand drive, it will fetch a
reasonable premium over the $9,500 that its poor-relation TR250 sibling would merit

TRIUMPH TR5
SPECIFICATIONS ( EUROPE )
Engine :
Six-cylinder,OHV,Fuel Injected
Capacity : 2498cc (74.7mm bore,95mm stroke)
Max.Power : 150 bhp @ 5500 rpm
Max.Torque : 110 kg/m @ 3500 rpm
Transmission : 4-speed manuall all-synchromesch gearbox with optional
overdrive
Suspension front : Independent with coil springs , wishbones and
telescopie dampers
Suspension rear : Independent with coil springs , semi-trailing arms and
lever-arm dampers
Steering : Rack and pinion
Brakes : Discs on the front and drums on the rear , servo
assisted
Tyres : 165x15 radial-ply
Lenght : 3.91m / Width : 1.47m / Height
: 1.27m / Wheelbase : 2.24 /
Max-speed : 193 km/h / 0 > 100 km/h : 8.8 sec
Fuel consumption : 7km/litre
Total production : 2947 ( 1161 for home +1786 export )

TRIUMPH TR250
SPECIFICATIONS ( USA )
Engine :
Six-cylinder,OHV,Fuel carbureted
Capacity : 2498cc (74.7mm bore,95mm stroke)
Max.Power : 104 bhp @ 4500 rpm
Max.Torque : 213 kg/m @ 3000 rpm
Transmission : 4-speed manuall all-synchromesch gearbox with optional
overdrive
Suspension Front : Independent with coil springs , wishbones and
telescopie dampers
Suspension rear : Independent with coil springs , semi-trailing arms and
lever-arm dampers
Steering : Rack and pinion
Brakes : Discs on the front and drums on the rear , servo assisted
Tyres : 185x15 radial-ply
Lenght : 3.91m / Width : 1.47m / Height :
1.27m / Wheelbase : 2.24m
Max-speed : 172 km/h / 0 > 100 km/h : 10.6 sec
Fuel consumption : 10km/litre
Total production : 8484 all for US market


