The
new distribution includes a spring valve return system, that brings the
maintenance intervals of the V4 Granturismo to 60,000 km. Figures obtained
thanks to the in-depth expertise Ducati acquired in the use of materials,
treatments and technical solutions developed around the Desmodromic system. All
this, applied to a spring valve return system which stresses less the
components if compared to the Desmo, brought to set an outstanding milestone
never set before by a motorcycle engine. In addition, the engine ensures great
regularity of operation at low revs and low loads, without forgetting the
outright performance, the power at high revs and the reach of an authentic
sports engine: The V4 Granturismo delivers 170 hp of power at 10,500 rpm, and a
maximum torque of 125 Nm at 8,750 rpm. The engine meets the stringent Euro 5
homologation norms.
With
its 66.7 kg of weight, the V4 Granturismo can boast a record lightness, being
1,2 kg lighter than the Testastretta twin-cylinder used on the previous
Multistrada 1260. The 1,158 cc displacement came out as being the perfect point
of connection in terms of performance, lightness and dimension of a V4 engine,
capable of being incredibly light and compact. Compared to the previous generation
engine, the V4 Granturismo is 85mm shorter, 95mm lower and only 20mm wider.
This compact layout allowed Ducati engineers to house the engine in the frame
more effectively and centrally in order to positively influence the position of
the bike's center of gravity, with all the resulting benefits. The V4
Granturismo also inherits some elements derived from the experience gained by
Ducati in the racing world, such as the decision to adopt a counter-rotating
crankshaft, which improves the handling and agility of the bike, and to exploit
the "Twin Pulse" technology, capable of offering a full-bodied but
perfectly manageable power delivery at every speed.
To
avoid a drop in thermal comfort due to the heat transmitted by the rear
cylinders, the V4 Granturismo adopts the strategy of deactivating the rear bank
at idle. In this way, when the bike is stationary, the combustion process in
the cylinders is halted and this improves the thermal comfort of the rider and
passenger thanks to the lowering of temperatures while simultaneously reducing
fuel consumption.
V4 Granturismo main technical data
•
1158 cc 4-cylinder 90° V engine
•
Bore x stroke 83 x 53,5 mm
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Compression ratio 14:1
•
Maximum power 125 kW (170 hp) at 10,500 rpm
•
Maximum torque 125 Nm (12,7 Kgm) at 8,750 rpm
•
Euro 5 homologation
•
Distribution part chain, part gear - timing with dual overhead camshaft, 4
valves per
cylinder
•
Counter-rotating crankshaft with crank pins offset at 70°
•
Wet multiplate anti-patter servo clutch
•
Semi-dry sump lubrication with three oil pumps: 1 delivery and 2 return
•
Fuelling with four oval throttle bodies (46 mm diameter equivalent)
•
6-speed gearbox with Ducati Quick Shift (DQS) Up & Down System
•
60,000 km maintenance valves check interval
•
Deactivating rear bank