FORD AND COSWORTH: A WINNING PARTNERSHIP
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The power and sheer driveability of the Ford. Zetec-R
engine was one of the talking points of the 1994 Formula
One scene. By season's end, the Cosworth-developed, 3.5
litre V8 had powered Michael Schumacher to eight outright
Grand Prix victories and two second places - one of them,
at Barcelona, while stuck in fifth gear for two-thirds of
the race - on his way to the Drivers' World Championship.

The immediate competitiveness of the new engine seemed to
surprise some observers of the Formula One scene. It
shouldn't have.

The links between Ford and Cosworth are among the longest
standing and most productive in the motor industry. The two
companies first co-operated in 1959, when Cosworth
developed a lightweight iron crankcase engine for the new
Ford Anglia.

Cosworth founders, Keith Duckworth and Mike Costin, then
tuned the new engine, codenamed MAE (Modified Anglia
Engine), and it soon became the power unit of choice for
drivers seeking success in Formula Junior, and later,
Formula Three.

Next came the Cosworth FVA racing engine, and impressed by
the potential of the new power unit, Ford commissioned the
Northamptonshire-based company to produce a roadgoing
version to suit its new high-performanci Escort, the
RS1600.

The result was the now-famous BDA (Belt-Driven A-series)
which employed many of the lessons learned in motor racing
to achieve excellent levels of performance and efficiency
at relatively low cost.

The Zetec-R may be off to a flying start, but undoubtedly
the most successful Ford-Cosworth collaboration to date has
been the DFV (Double Four Valve) Formula One engine. The
90-degree V8 stunned the racing world when it appeared for
the first time at the 1967 Dutch Grand Prix in the back of
Colin Chapman's highly effective Lotus 49 chassis and
promptly powered Jim Clark to an historic win.

The Ford DFV went on to win 154 more Grands Prix and 12
Formula One World Championships in an illustrious career
that spanned 15 years. During that time, the DFV's power
output climbed from 405 bhp to 520 bhp at 11,000 rpm.

Ford has also commissioned Cosworth to work on production
car engine projects. These have included development of the
turbocharged YBT 2-1itre, four-cylinder engine fitted to
the Sierra and Sapphire RS Cosworths, and more recently,
the Escort RS Cosworth. Cosworth was also responsible for
developing the 2.9litre, 24-valve V6 engine fined to the
Ford Scorpio 24v.

Any list of successful Ford - Cosworth ventures would have
to include mention of the HB Formula One and XB Indy car
engines. Designed to comply with the new 3.5-1itre,
naturally aspirated Formula One regulations which came into
effect before the 1989 season, the lightweight, compact
HB V8 powered eight Grands Prix winners in a five-year
career. It was also responsible for putting a Ford-powered
driver on the podium at every round of the 1993
World Championship.

The Ford Cosworth XB Indy car engine is a 2.65-litre,
80-degree V8 which replaced the highly successful Cosworth
DFX. In 1994, the methanol-burning XB scored four
victories, and extensive development work should ensure
the 1995-specification Ford XB is even more competitive.

The most recent development to issue from Cosworth is the
Ford Zetec-R Formula One engine. Carrying the same "Zetec"
name as the highly successful range of double overhead
camshaft, four-valve-per-cylinder engines used in the
current Fiesta, Escort and Mondeo model ranges, the new

3.5-litre power unit was the highest-revving racing V8 ever
produced when it was unveiled prior to the staxt of the
1994 Formula One season. Internal componentry, including
titanium connecting rods and valves as well as magnesium
alloy pistons, permitted working engine speeds of 14,500
rpm.

In the 3.0-litre form required by 1995 Formula One
technical regulations, the latest Zetec-R will start racing
at engine speeds in excess of 15,000 rpm. The external
appearance of the 3.0-litre Zetec-R is very similar to the
larger-capacity 1994 engine, although there are small,
noticeable differences to allow for the new "stepped
floors" with which all Formula One cars have to be fined
for the new season.

Internally, the 3.0-1itre Zetec-R has a new crankshaft,
connecting rods, pistons, cylinder liners, cylinder heads,
front cover, valves, air-valve spring assemblies and inlet
system. There are also modifications to the cam drive
arrangement and some of the auxiliaries, all dictated by the
requirement to run the engine at higher speeds.

The Zetec-R will continue to be fitted with Ford's
Electronic Engine Controller (EEC) and fuelling system.
This has the capability of processing between 1.5 million
and 1.7 million commands per second in order to monitor and
control all aspects of the engine's performance.

In addition to the Zetec-R which will be provided
exclusively in 1995 to Ford's chosen "factory" team,
Sauber, the Ford Cosworth ED will be'supplied to customer
teams. This 75-degree V8 is a 3.0-litre development of the
HB-Series engine and combines new technology with proven
features to provide a powerful and reliable Formula One
power unit as well as a platform for future development.

"The relationship between Ford and Cosworth was highlighted
this past season because of the success of the Zetec-R
engine in Formula One," comments Cosworth Engineering Chief
Executive, Chris Woodwark. "What can be overlooked, though,
is that the association between  the two companies is a
longstanding one which has been extremely rewarding for
both parties. The Zetec-R is simply the latest in a long
list of winning engines which includes the MAE, BDA, DFV,
XB and HB.

"As far as Ford and Cosworth are concerned, motorsport
improves the breed. There is no doubt that the continuous
pursuit of excellence which is necessary to attain and
retain competitiveness simultaneously pushes the
technological boundaries forward. The lessons thus learned
frequently result in new designs, methods and processes
which can be of direct benefit to both Ford and Cosworth
customers."


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Source: PP Sauber AG
Scan & ocr by Tero Virta
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