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Cosworth enjoy strongest season since '99 19 Oct 2005

David Coulthard (GBR) Red Bull Racing RB1.
Formula One World Championship, Rd 9, United States Grand Prix, Practice Day, Indianapolis, USA, 17 June 2005

Red Bull engine suppliers, Cosworth, marked the end of Formula One racing’s V10 era with their best season in half a decade. With 2005 regulations requiring engines to last two race weekends, Red Bull were the only team to make no unscheduled engine changes.

In fact, Red Bull experienced just one engine failure all season, when David Coulthard’s V10 - on its second race - gave out midway through the Belgian Grand Prix. Such outstanding reliability played a key role in Red Bull’s impressive debut year, which saw them score 34 points and finish seventh in the championship.

However, Cosworth are keen to point out that it was not just reliability that rose dramatically in 2005 - it was also power - and with the V10s making way for V8s in 2006, the company are now happy to talk specific figures.

The TJ2005 Series 10 engine used by Red Bull at the season-opening Australian Grand Prix was 25bhp up in qualifying over the Series 8 unit used in the final race of 2004, with rev limits raised by 300rpm.

And the Series 12 engine introduced exclusively with Red Bull at the US Grand Prix in June represented the biggest performance gain Cosworth have ever delivered as a mid-season upgrade, up 30bhp and 700rpm to take peak power to well over 900bhp throughout the races and maximum engine speed to 19000rpm.

Of course, we are now unlikely to see such figures again for some time. After 16 years of V10s, next year’s switch to 2.4 litre V8s will cut power outputs dramatically. Cosworth will be supplying their V8 to Williams, with Red Bull switching to Ferrari engines.