The TR4 was a natural progression by Triumph to meet growing buyer expectations, especially those in its largest market - America.
The Triumph TR4 was produced from 1961 through 1964 and wore a strikingly aggressive body designed by Italian stylist Giovanni Michelotti with the basic chassis of the prior TR3A. Passenger comfort was improved through the use of wind-up windows, optional hardtop, and face-level ventilation. It used the 2,138cc engine of the late-production TR3A, with the 1991cc engine made available to buyers who participated in two-liter racing classes. The 2,138cc overhead-valve four-cylinder engine had solid valve liters, two SU carburetors, three main bearings, and delivered 100 horsepower at 4600 RPM and 127 lbs.-ft of torque at 3350 RPM. The engine was backed by a four-speed manual transmission with overdrive, and there were disc brakes in the front, drums at the rear, and a rack-and-pinion steering system. The suspension was comprised of unequal-length A-arms in the front with coil springs. In the back was a rigid axle with semi-elliptic leaf springs.
Total TR4 production reached 40,253 examples.
In 1965, the TR4A was introduced and brought with it an all-new independent rear suspension system (IRS) that provided exceptional rear-wheel camber control with excellent wheel travel, which softer springs added to the ride quality. Between 1965 and August of 1967, Triumph built 28,465 examples of the TR4A, with about 75 percent being equipped with the IRS setup. At the 1966 12 Hours of Sebring, three IRS-equipped TR4As achieved a 1-2-3 class victory.
The Triumph TR4A was a combination of comfort and performance with refined Italian flair. by Daniel Vaughan | May 2020
Related Reading : Triumph TR History
The Triumph TR4 was introduced in 1961. The body had been given a modern and updated appearance by Michelotti but its drive-train and chassis were based on its TR predecessors. Production lasted until 1965 when it was replaced by the TR4A. Prior to its release and while under development, the car was referred to by its codename, Zest. The TR Series was a popular sports car but it did have its.... Continue Reading >>
Related Reading : Triumph TR History
An extremely successful sports car, the Triumph TR4 was produced in the U.K. by the Standard Triumph Motor Company from 1961. With a top speed of 110 mph, and costing around £1095, the TR4 became one of Triumphs best-loved cars thanks to its low cost of entry and capable open-top sports capabilities. The TR4 was stylistically quite a departure from its predecessor the TR3 and seemed to be just the.... Continue Reading >>
The TR4 was an improvement of the TR3. The TR4 was followed by the TR4A which was still powered by the 2,138cc pushrod operated overhead valve four-cylinder engine that had been fitted in the TR3 variant. The Triumph TR4A had an independent rear su....[continue reading]
This Triumph TR4A is a California car that has been given a comprehensive, no-expense-spared restoration. It has a 2,138cc overhead-valve four-cylinder engine, front disc, and rear drum brakes. Options include a 60-spoke chrome wire wheels and a four....[continue reading]
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