That was the Cosworth made Ford badged, EC Zetec-R 3.5
100mm bore and 55.7mm stroke.
730HP @ 13,800rpm
https://www.racecar-engineering.com/new ... pirations/
Whereas the 1994 Renault RS6 is not acknowledged to be a completely new engine, the Ford Zetec-R most certainly is. The eventual need for a very high-speed engine had been foreseen well before November 1991, at which time the very compact and lightweight Ford V12 began its testbench career. For several reasons, this was to remain a research exercise, but one which contributed significantly to future eight-cylinder development. Therefore, in mid-1992, the design of a very high-speed eight-cylinder HB successor engine, to be launched as the Ford Zetec-R, was initiated. This Is the Benetton power unit for 1994, and it must make the team confident of now being able to challenge Williams-Renault, McLaren-Peugeot, and all the rest, at a level not open to it in recent years.
Although, through Cosworth, Ford has always delivered more engine performance at the beginning of each season, the step-change which the Zetec-R is expected to bring to the early events of 1994 is probably unprecedented in the camp. And one can anticipate that its performance will improve as the season develops, and more of the engine’s potential is realized. The Zetec-R, initially with a 14,500rpm limit, can be expected to develop maximum power in the 13,500-14,000rpm range. Early in its career and at a conservative estimate, it should thus produce 30-35bhp more than the best HB level – bearing in mind the stricter fuel formulation rules this year.