The Triumph TR4 is a sports car produced by the British Triumph Motor Company from 1961 to 1965, the succeessor to the TR3A. Code named "Zest" during development, the car was based on the chassis and drivetrain of the previous TR sports cars, but with a modern Michelotti styled body. 40,253 cars were built during production years.
The new TR4 body style did away with the cutaway door design of the previous TRs to allow for wind-down (roll-up) windows in place of less convenient side-curtains. The angular rear allowed a boot (trunk) with considerable capacity for a sports car.
The pushrod Standard inline-four engine, was designed for use by the Fergusun TE20 tractor. The TR4 engine was continued from the earlier TR2/3 models, but the displacement was increased from 1991cc to 2138 cc in the TR4 by increasing bore size. Gradual improvements in the manifolds and cylinder head allowed for some improvements culminating in the TR4A model. The standard engine produced 105 bhp but, supercharged and otherwise performance-tuned, a 2.2-litre I4 version could produce in excess of 200 bhp at the flywheel. The TR4, in common with its predecessors, was fitted with a wet-sleeve engine, so that for competition use the engine's cubic capacity could be changed by swapping the cylinder liners and pistons, allowing a competitor to race under different capacity rules (i.e. below or above 2 litres for example). Other key improvements over the TR3 included a wider track front and rear, slightly larger standard engine displacement, full synchromesh on all forward gears, and rack and pinion steering. In addition, the optional Laycock de Normanville electrically operated overdrive could now be selected for second and third gears as well as fourth, effectively providing the TR4 with a seven-speed manual close ratio gearbox.
The TR4 was originally fitted with 15x4.5" disc wheels. Optional 48-lace wire wheels could be ordered painted the same colour as the car's bodywork (rare), stove-enamelled (matte silver with chrome spinners, most common) or in matte or polished chrome finishes (originally rare, but now more commonly fitted).
The TR4 had a number of racing successes in America, primarily through the efforts of the Californian engineer Kas Kastner and his top driver, Bob Tullius. In 1961 The TR4 won first in class and thirtieth overall at Sebring. In 1962 the TR4 won the E production national championship, following which the SCCA reclassified the car to D production, and Tullius won that class title in 1963 and ’64. Soon after the TR4 was introduced Kastner along with Mike Cook, who was in the advertising department at Triumph in New York City, convinced the company to provide three new TR4s to race in the 12 Hours of Sebring race in 1963.They finished overall 22nd, 24th, and 35th of 65 entries, and first, second and fourth in the 2.5 GT class. This was the beginning of the Triumph Competition Department Kastner headed for several years and used to publicize and market the TR4.
Perhaps the greatest racing victory for the TR4A was at Daytona, where a Kastner-prepared car driven by Charlie Gates won the 1965 SCCA D modified championship against Ferraris and other prepared race car exotics. The TR4 continues to be raced in vintage sports car events and even won an SCCA class championship as late as 1991.
This very nice low mileage example has been in the current owners care for over 20 years accumulating only about 3,500 miles since purchase. As you can see the car has very solid sheet metal throughout. The engine was rebuilt a few years back, and the car was recently recommisioned with a rebuilt Starter, Carburators, Fuel Pump, Battery, and Tune up. The car starts right up, has brisk acceleration, firm braking, and shifts quite smoothly. The car really needs nothing to be driven and enjoyed immediately.
Accompanied by a soft top, tonneau cover, British Motor Heritage Certificate, and service records; this jaunty little sports car exhibits all the best of open air British motoring fun.