Propulsion Systems

Powering the speedboat will be a range of optional engines,
including a Volkswagen Marine diesel engine, a Volvo petrol
engine, various Mercury petrol engines and the range-topping
Silvestris 8.1L V8 made by Mercury Racing. The 8.1L V8 puts
out 600hp through its single prop stern drive system,
propelling the Silvestris Sports Cabriolet to speeds well in
excess of 66 knots (110km/h).

Mercury Racing supplies the Bravo One® stern-drive and the
all-new dry-sump NXT¹® drive. These drives are robust
enough to handle engines between 525 and 700 horsepower
with an input torque rating of 800 ft-lbs. The engine/transom
plate/drive package of the all-new dry-sump NXT¹® drive is
nearly 200 pounds lighter than a comparable engine outfitted
with a standard size transmission and dry-sump Six drive.
Both the drive and transmission feature dry-sump lubrication
for higher efficiency and reduced operating temperatures.


The unique through-hull location of the compact transmission
enables the transmission to be installed after the engine is
first mounted. Access to the transmission from the transom
also allows the transmission to be removed and serviced
without having to pull the complete engine. This will lead to
reduced maintenance costs, further enhancing the
attractiveness of the Silvestris Aquamotive speedboats.