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From the Motorsport Archive: 500cc Kieft shows the way in Goodwood

“When a few enthusiasts in the Bristol region came up with the idea of ​​a 500cc race, they knew little about how popular the class would be,” we meditated in 1951.

“These machines with single-cylinder engines are currently performing brilliantly, and the new Kieft recently set a lap record at Goodwood at 84.55 mph.”

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We correctly foresaw such a lightweight and simple car, initially built by fun-hungry enthusiasts, as a way to advance post-war austerity and rations.

We say: “The problem faced by the constructor was, roughly speaking, to build a chassis with a power unit (same twin OHC Norton). [motorcycle] The engine, previously mounted on the Stirling Moss Cooper) is lighter and stiffer than other 500cc cars, while the suspension provides at least the same road holding as its competitors. ”

This was achieved using a rigid box center section, swing axle rear suspension (with a clever cable setup to manage weight transfer), and a steel tube chassis with double wishbone front. The fuel tank was in the box in front of the engine and gearbox to maintain a uniform weight distribution.

The car made in London was virtually untested before the 500 International Trophy at Goodwood, but Moss rushed there overnight from Monza in the first heat (he came in 6th). Overcome “a little annoyance” and finished the last half-mile up to Alan Browne at Cooper Norton.

The success of the small Kieft continued, with Don Parker winning the British F3 title in both 1953 and 1954.

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From the Motorsport Archive: 500cc Kieft shows the way in Goodwood

Source link From the Motorsport Archive: 500cc Kieft shows the way in Goodwood

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