Technical Changes
A major technical change for 1991 was the introduction by Avon of radial-ply tires. Compared to the previous crossply tires, these could be more consistently manufactured, and made the cars more consistent aerodynamically, but gave the drivers less control at high slip angles.
Lola’s T91/50 was an evolution of the previous year’s championship winner, and retained a very short wheelbase of 263.0 cm (103.5 in). By comparison, the Reynard 91D had a wheelbase of 277.5 cm (109.3 in). The short wheelbase of the Lola was blamed for its inability to perform on the new tires, and the Forti Corse team switched to Reynards after three rounds. The Eddie Jordan Racing team attempted to lengthen its Lolas by adding a spacer in between the engine and gearbox, but eventually it too purchased a Reynard for Damon Hill.
The RALT name returned to F3000 after being split off from March.
Read more about this topic: 1991 International Formula 3000 Season
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