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EVINRUDE

After introducing its ever-impressive E-TEC line ranging from 40 to 90 horses, the industry took a double-take after Evinrude turned around and introduced a whole new series of V6 E-TEC heavyweights, including the 200, 225 and 250 plus the 225 and 250 High Output models. All models are available in fresh and saltwater configurations and are claimed to be cleaner, quieter, easier to operate and require less maintenance than any other outboard engine on the market. Each model is built on a 3.3 L 90-degree V6 block offering the ultimate in power and performance. According to Evinrude, these E-TEC outboards consume approximately 50 per cent less oil than traditional direct injection systems and up to 75 per cent less than traditional two-strokes. They also eliminate the disposal of dirty oil and filters since oil or filter changes are not necessary. The engines also eliminate the use of such conventional components as belts, powerhead gears, cams and mechanized oil pumps. Instead, they replaced these components with many new, reliable performance innovations. For instance, the Engine Management Module (EMM), E Start and Auto-Lubing combine to provide fewer moving parts allowing no scheduled dealer maintenance for three years (or 300 hours), no break-in periods or even winterization procedures. The E-Start system is also designed to fire within one revolution, ensuring a quick start while the EMM onboard computer fully controls a stratified start up to optimize engine performance.

Its advanced cooling system and extra capacity water pump ensure optimum engine operation temperature. Tough, over-size components, including specially NASA-developed alloy pistons, enhance overall engine strength. The engines utilize the company’s DeepGuard corrosion protection package to ensure engine longevity.

Another unique system is Speed Adjusting Failsafe Electronics (S.A.F.E.), an information and alarm system, which tells the engine to go into low speed mode in the event of an emergency in order to prevent damage.

Each model produces whisper-quiet signature sound thanks to an exclusive sound suppression system. A moulded foam inner liner optimizes depth and coverage of the acoustic treatment in both the upper and lower motor covers, while an air silencer is designed to reduce airborne sound.

Some other highlights include a variable voltage, computer-controlled alternator providing 50 amps of electrical power, and a freshwater flushing port.

This year, keep an eye out for a new mid-range model, the 60 E-TEC. This engine features an in-line two-stroke platform designed to provide optimum power in a light, compact package. Sharing the same quality features as the rest of the E-TEC family, the 60 E-TEC is CARB 3 compliant with ultra-low emission ratings, while its direct-injection system offers reliable operation, efficient fuel economy and smooth power across the operating range. It also features S.A.F.E., a freshwater flushing port and a variable voltage computer-controlled alternator to charge onboard batteries or use marine electronics.

More information on the E-TEC line of outboards can be found at www.evinrude.com .

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YAMAHA

Yamaha has stepped up its four-stroke power choices with the V6 F250 hp.

Featuring a 60-degree 3.3-liter 24-valve DOHC engine block, the F250 boasts the same power characteristics as the impressive F225 hp introduced in 2002, but incorporates the company’s Variable Camshaft Timing (VCT) to increase low and midrange torque for added performance.

Yamaha notes the VCT is a revolutionary new system, as a variable camshaft rotates in both directions to advance and retard the intake camshafts to vary the intake timing, increasing volumetric efficiency to increase low and midrange torque for quicker planing times on larger offshore fishing boats.

The system works with Yamaha’s Engine Control Module (ECM) that directs the oil control valve to supply oil inside the Variable Camshaft Actuator. It advances and retards the camshaft timing based on the F250’s rpm. When fully advanced, the camshaft advances 40 degrees, opens, then closes the intake valves sooner and places the combustion chamber in valve overlap position, increasing intake and exhaust efficiency. The intake valve also closes sooner to help build higher combustion-chamber pressure resulting in greater volumetric efficiency. The result is a 16 per cent increase in torque in the 2,000 to 3,500 rpm range.

The F250 comes complete with Yamaha’s exclusive in-bank exhaust system, featuring large diameter intake valves that deliver the air-fuel mixture to the combustion chamber more efficiently. The exhaust pressure reduction system reduces exhaust pressures to increase output while cooling the hub on the prop.

The new VCT houses an all-new, electronically controlled, single throttle valve intake system. When combined with a long intake manifold, users are offered reduced intake noise and more power. The large air intake silencer reduces engine noise with the help of a labyrinth exhaust system and water-sealed outer walls in the engine's midsection. With the in-bank exhaust system, exhaust gases are water-cooled and vented straight down and out through the prop.

In addition to featuring lightweight forged pistons and specially heat-treated crankshaft and connecting rods for additional durability and strength, a single-belt drive system uses fewer moving parts for long-term durability. Longevity is provided by auto belt tensioners to maintain the ideal belt tension, while a flywheel dampener reduces crankshaft vibration for smoother operation and less wear on internal components.

The engine is based on a double-overhead cam design for greater valve timing control. Four valves per cylinder provide clean, powerful combustion. A blow-by gas reburning system removes any unburned fuel from the exhaust gases, and reroutes it back into the fuel delivery system to be burned more efficiently.

Controlling all this technology is the company’s Engine Control Module (ECM), which receives input from eight sensors placed around the engine. While the ECM uses this data to calculate the precise fuel/air mixture to each combustion chamber depending on load and speed, it also warns the operator of impending problems. The warning system includes overheat warning, over-rev prevention, low-oil pressure warning, neutral throttle limiter and start-in-gear prevention.

Its multiport fuel injection, which provides the proper fuel mixture in all weather conditions, allows the engine to start quickly and the idle speed controller is directed by the ECM, providing immediate starts, stable idle and smooth slow trolling speeds.

An added bonus is the front-mounted freshwater flushing device that hooks up to a standard garden hose. Some other highlights of the F250 include a 45-amp marine alternator plus a wide-range power trim and tilt that raises from -3 degrees to +16. The F250 also meets and exceeds the 2006 Federal EPA emission standards plus the 2008 California Air Resources Board (CARB) emission standards.

Other offerings from Yamaha this year include the electronic fuel-injected F75 and F90 four-stroke outboards and the F90 Jet Drive. Designed for mid-size boats, these engines are designed to offer smooth operation and improved fuel economy. The F90 is available in a 25-inch shaft model for compatible installation on a wider variety of boats.

All models feature a hefty 1.6-liter in-line four-cylinder powerhead, plus a double overhead cam designed for greater valve timing control. Four valves per cylinder provide clean, powerful combustion while its combustion efficiency affords better fuel economy and plenty of torque in the low to midrange. The models feature the company’s direct-drive design that eliminates rocker arms plus the need for adjustments, reducing maintenance. Yamaha's system uses a design that connects the valve operation to the cam resulting in fewer moving parts, less weight and maintenance, and increased reliability.

Like all Yamaha four-stroke outboards, these midrange models come with Yamaha's three-year factory limited warranty.

For more information about Yamaha’s line of outboards, visit www.yamaha-motor.com  

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VOLVO-PENTA  www.volvo.com/volvopenta

Two new engines – the Volvo Penta IPS350 and IPS600 models – have been added to Volvo Penta’s highly acclaimed range of drive systems for boats. This means that the Volvo Penta IPS range now comprises a total of four engines, all of which are available with the new “joystick” feature.

The Volvo Penta IPS will now be available for more types of boats – from sport cruisers to flybridge boats in sizes from approximately 32 to 48 feet.

Engines that meet high comfort specifications
“The attitude to boat engines has changed. Previously, top speed and acceleration were decisive, but today more is required. Boat purchasers are placing increasingly rigorous demands on engines – perhaps the key factor in the boating experience – in terms of environmental performance, safety and comfort,” says Lennart Sellman, product planner at Volvo Penta.

To reduce vibrations, the new engines have engine blocks reinforced with a special “ladder frame” and a cylinder head cast as a single unit. Common-rail fuel injection contributes to a quieter and more pleasant engine sound without diesel clatter. In the Volvo Penta IPS350 model, the balance shafts are integral (mounted in the engine block) to compensate for the engine’s rotational forces, resulting in considerably more even running.

New Volvo Penta IPS350
The Volvo Penta IPS350 is an extension of the existing IPS range launched in the 2005 model year. The new engine is an adaptation of the D4-260 engine developed by Volvo Penta and launched in 2004.

The D4-260 rapidly became a success and has been installed to date in boats from all the leading leisure craft manufacturers worldwide. Accordingly, there was a demand for the engine with Volvo Penta IPS.

The Volvo Penta IPS350 is a four-cylinder diesel with turbocharger, intercooler and compressor. It has a capacity of 3.7 liters and a crankshaft output of 260 hp at 3,500 rpm.
 
New Volvo Penta IPS600
The Volvo Penta IPS600 is an extension of the existing IPS range.
The Volvo Penta IPS600 is based on the company’s own D6-435 diesel engine, which has been adapted – through the addition of a compressor and other modifications – to the Volvo Penta IPS system. The new engine represents the state of the art in modern diesel technology, with electronically controlled common-rail fuel injection, double overhead camshafts, four valves per cylinder, turbocharger, intercooler and compressor. The compressor produces high compression immediately during acceleration at low revs, which creates powerful torque. At higher revs, the compressor is disengaged and the turbo takes over. The result is outstanding acceleration with high torque throughout the entire rpm range.

Meets emissions requirements for EU and US
During 2006-2007, the US and the EU are introducing emissions requirements for diesel engines in leisure boats. The Volvo Penta IPS350 and IPS600 – together with all the other models in Volvo Penta’s engine range – meet the rigorous emissions requirements.

“But we decided to go a step further,” says Lennart Sellman. “Our engines go beyond fulfilling the requirements – for example by meeting one of the major challenges: acceleration without exhaust smoke. The low emissions values result from the advanced design, which combines electronics with a newly designed engine that enables precise control and full monitoring of engine combustion.”

But there are additional environmental gains. Thanks to the higher efficiency of the new IPS system, fuel consumption is up to 30 percent lower and noise levels and vibration up to 50 percent lower, compared with boats equipped with conventional inboard shaft installations, according to Volvo Penta’s calculations.

EVC as standard
The engine and the controls, as well as instrumentation, are integrated via Volvo Penta’s EVC (Electronic Vessel Control) system. The new technology permits simple installation and gives high operational reliability. The CAN bus technology uses a serial data cable to replace conventional cabling for instruments and controls. Electronic controls for shift and throttle are standard.

Volvo Penta IPS – widely acclaimed
The new propulsion system has been awarded several prizes since its introduction in 2005, including “The Best Technological Innovation Trophy,” “The Best of the Year Award” and The IPC Marine Award.”
 
Volvo Penta IPS350 technical data
Crankshaft output: 260 hp at 3,500 rpm.
Torque: 615 Nm at 2,000 rpm.
Configuration: In-line four-cylinder diesel with turbo, intercooler and compressor.
Generator: 115 A.
Cylinder volume: 3.7 l
Weight, total including Volvo Penta IPS: 790 kg.
Emissions: Complies with EU RCD and US EPA Tier 2.

Volvo Penta IPS600 technical data
Crankshaft output: 435 hp at 3500 rpm.
Torque: 1,017 Nm at 2,000 rpm.
Configuration: Straight six-cylinder diesel med turbo, intercooler and compressor.
Generator: 115 A.
Cylinder volume: 5.5 l
Weight, total including Volvo Penta IPS: 901 kg.
Emissions: Complies with EU RCD and US EPA Tier 2.

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