Thursday, 3 October 2013
Cosworth engine technology
Speed and horsepower climbed with the 3.0-litre V10s, before the switch to V8s for 2006. BMW probably reached 19,000rpm first in 2002 but engines had to do bigger mileages in 2004 and 2005. The top 2005 V10 was the Toyota, which ran to 19,200rpm and produced 930bhp. All the 2005 V10s exceeded 900bhp, probably not more than 950bhp except possibly the Honda.
Bamsey describes the astonishing performance of a Formula 1 engine. At 20,000rpm, the CA's piston acceleration was 10,616 g, while the load on each crankpin by piston and conrod reached 5937kg. Ballistic missiles can only manage 100g, while 5937kg is about two and a half times the weight of a Rolls Royce Wraith.
Race Engine Technology's full report of the Cosworth CA, in issue 73, spans 27 pages and can be bought from www.highpowermedia.com, or by calling Chris Perry on +44 (0)1934 713957.
Cosworth CA (top) and its great predecessor the Ford-Cosworth DFV (right)