HISTORY OF THE YB ENGINE
The story of the YB engine starts long before the arrival of the Sierra Cosworth in 1985, although that was the first time we saw it in all its road-going glory. In fact, the start of the tale can be traced right back to the end of the 1970s and early 1980s.
Despite dominating circuit racing and rallying throughout the 1970s, Ford’s grip on motorsport was loosening, and fast. Even the mighty DFV Formula One engine was losing out to modern turbocharged units.
The misery was highlighted
