2013 Ducati Diavel BlackChrome (San Diego, CA)

2013 Ducati Diavel BlackChrome

The Diavels heart is the Ducati Testastretta 11 - developed directly from the incredibly powerful world-beating race engines of Ducati Corse. Ducati s Testastretta 11 harnesses the immense power of the Superbike engine and makes it smooth and adaptable a massive step forward in balancing high-performance with an enjoyable ride. For an engine with brute power on tap when needed and smooth user-friendliness available for an effortless and comfortable ride Ducati revised the configuration of the cam timing with particular focus on the valve overlap angle. The overlap angle is defined as the interval of crankshaft rotation measured in degrees during which both the intake and exhaust valves are open at the same time. This overlap occurs between the end of the exhaust stroke and the start of the intake stroke. On the Testastretta 11 engine this angle has been reduced from 41 used in the Testastretta Evoluzione engine which powers the 1198 to 11 . As a result the fresh inlet charge flow is less compromised by the exiting exhaust gases resulting in a much smoother combustion in addition to improved fuel economy and lower exhaust emissions.