XJR-14 was a sports-prototype
racing car introduced for the 1991 World Sportscar Championship
The 1991 season marked the introduction of the FIA
’s new, and controversial, 3.5 Litre Formula
which replaced the highly successful Group C
category that had been used in the World Sportscar Championship since 1982. However, due to a small number of entries in the new 3.5 litre formula heavily penalised Group C cars were allowed participate in the newly created C2 category for the 1991 season but Jaguar participated in the new formula.
To comply with the new regulations Jaguar produced an all-new car, the XJR-14. It was designed by John Piper under the design direction of Ross Brawn
and was built by Tom Walkinshaw Racing
(TWR). In the past, TWR's Jaguars had been designed under the direction of Tony Southgate, while Brawn worked with a large design staff (12 according to John Piper); a paradigm shift (albeit small) in its own right and reflective of Brawn's Formula One background.
The primary feature of the new regulations centred around 3.5 litre naturally aspirated engines. Although the XJR-14's predecessor, the XJR-11
, used a twin turbo charged 3.5 litre engine derived from the Metro 6R4
-derived JV6 engine, in order to comply with the new rules the two turbochargers would need to be removed. Naturally this wasn't a realistic option, nor was it ever considered, given the design compromises of not using a bespoke engine.
But given the... Read More