Although Class 1 powerboats are typically made of composite materials they still need an awesome power plant to propel them at speeds in excess of 160 mph. For most teams the power comes from two Lamborghini V12 petrol engines, however the Mercury Marine HP1075 SCi is gaining in popularity with 4 boats running the engine in the 2006 championship. Engine power is limited on the Lamborghini by air restrictors whilst the Mercury's power is controlled by an Electronic Control Unit (ECU)
Lamborghini L804 - MY4000
Lamborghini are well known for performance cars but the first Lamborghini engine was fitted to a boat back in the late 60's. Ferruccio Lamborghini decided to try out the Espada engine on a newly-designed boat by designed by Eugenio Molinari. Due to the difficult years in Automobili Lamborghini, production came to a halt and Ferruccio Lamborghini decided to commission Ing. Alfieri to design a new engine, a 12 cylinder 8,200 cc, for offshore racing. It was in 1984 that Lamborghini made it's stand in offshore powerboat racing. Since then the technical development has evolved from carburettor to the actual injection engine flanked by the 4-speed to the 6-speed gearbox until the 2001, the year in which the latter was banned from the Sporting Regulations. The first 10 years of involvement in offshore racing saw an amazing 88 wins for the Italian company.
The Lamborghini L804 costs around 90,000 Euro (£60,000)
- 12 cylinder V60o
- Displacement 8171cc
- Max power 940HP at 7600 r.p.m
- Max Torque 102KGM at 6000 r.p.m
- 4 Valves per cylinder
- Compression ratio 10:1
- 4 Overhead cam shafts
- Variable intake timing system
- Multipoint injection
- Weight 400 Kg
- Seawater cooling system
- Dimensions (w x l x h) 80cm x 180cm x 110cm
Mercury Marine HP1075 SCi
The HP1075 was run by the Highlander team for the last few races of the 2004 season. The engine was not legal for the 2004 season due to many technical advances but it has now been approved by the UIM and was used by Ugland Offshore Racing's boat for the 2005 season. In 2006 Team Qatar will also run the engine in their boats. The engine is a V8 monster and creates 1075 HP (as well as an impressive sound whilst racing). This enormous power is controlled using the Mercury exclusive Propulsion Control Module (PCM) 03 microprocessor.
The 1075 SCi comes equipped with the digital SmartCraft Controller Area Network (CAN) system, a network of sensors that proactively monitor engine functions. The next wave in boating, SmartCraft Integrated Marine Technology from Mercury links power, controls and internal and external sensors to provide precise data on all boat functions at a glance. The system monitors a variety of vital engine functions including fuel flow, fuel range, fuel used, and RPM, along with water depth, trim angle, water pressure and battery voltage. Boat functions monitored include fuel tank levels and water and waste tank levels.
The PCM 03 also drives the exclusive Engine GuardianTM System. Engine Guardian monitors engine functions to forewarn of possible problems that could lead to engine damage. This "smart" technology not only detects and alerts the boater of a problem; it processes the data and reduces power to a maximum, safe level that allows the boater to continue operation. Engine Guardian also has the ability to proactively help prevent engine overheating by sensing not only engine temperature but cooling water pressure as well. By sensing water pressure, and temperature, the system can provide advanced warning to the PCM 03 control module, which then reduces engine power before temperature related engine damage takes place.
Mercury Engine - Service Schedule
- Displacement 9100cc
- Max power 1075HP (limited to 930HP for Class 1 racing in 2006)
- Full throttle range 5600-6000 r.p.m
- Unleaded Fuel
- Compression ratio 8:1
- Sequential fuel injection
- Weight 782 Kg
- Seawater cooling system
- Dimensions (w x l x h) 101cm x 139cm x 76cm