by Corey Sherman
The TR6, produced from 1969 to 1976, was the best selling TR in Triumph's
history. Interestingly, nearly 90 percent of the 91,950
manufactured were to US specifications.
While the chassis, center section, doors and running gear of the TR6
were essentially the same as the TR4A/TR250/TR5, the body was re-designed
by Karmann of West Germany, recognized for VW, Porsche, and BMW designs.
Under the hood, the old four cylinder engine from the earlier TRs were replaced
with a six cylinder 2.5 liter engine with Lucas mechanical petrol injection.
The TR5 and TR6 were the first UK production sports cars with Petrol
Injection.
Until 1972, the PI engine produced 150 bhp, until it was de-tuned to
125 bhp due to problems experienced in town traffic. Furthermore, the
Petrol Injection did not meet the US emission control regulations, so
US cars were equipped with twin Stromberg carburetors and only produced
about 104 bhp.
The interior remained similar to the TR4 and TR5 with a walnut dash
and good quality trim. The gearbox has synchromesh on all four gears
and is fitted with overdrive that works on 3rd and 4th gears.
TR6