The 2E established the paradigm for virtually all racing cars built since. It was startling in appearance, with its radiators moved from the traditional location in the nose to two ducted pods on either side of the cockpit and a large wing mounted several feet above the rear of the car on struts.
The wing was the opposite of an aircraft wing in that it generated down-force instead of lift and was attached directly to the rear suspension uprights, loading the tires for extra adhesion while cornering. A ducted nose channeled air from the front of the car up, creating extra down-force as well. By depressing a floor pedal that was in the position of a clutch pedal in other cars, Hall was able to feather, or flatten out, the negative angle of the wing when down-force was not needed, such as on a straight section of the track, to reduce drag and increase top speed. In addition, an interconnected air dam closed off the nose ducting for streamlining as well. When the pedal was released, the front ducting and wing returned to their full down-force position.
Until they were banned many sports racing cars, as well as Formula One cars, had wings on tall struts, although many were not as well executed as Hall's. The resulting accidents from their failures caused movable wings mounted on the suspension, as well as movable aerodynamic devices, to be outlawed.
The 2E scored only one win at the 1966 Laguna Seca Can-Am with Phil Hill driving. Hall stuck to an aluminum 5.3 liter Chevrolet engine in his lightweight racer, while the other teams were using 6 to 7 liter iron engines, trading weight for power.
The 2E was a crowd favorite and remains Jim Hall's favorite car.
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