Brian Hart
Turbocharging was prohibited at the end of 1988 in response to the increasing four-figure power outputs, which meant a return to developing naturally aspirated configurations that had not been widely used since the beginning of the decade. Cosworth, however, was one company that - aside from its V6 turbo project, which was only used for less than two years - had continued to build naturally aspirated V8s for F2 and a few of the least well funded F1 teams. "Brian Hart Limited" returned to its previous role as a tuning and servicing specialist, working in partnership with Cosworth to develop its DFZ and DFR engines (which owed a lot to the original DFV).