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Trophy 1902 WA
WIth a single 150-hp Mercury outboard, the 1902 hit 41.2 mph.
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Verado discards conventional outboard design with features such as an in-line power head, supercharger, intercooler, and electronic waste gate, providing smaller, lighter four-strokes and increased torque and acceleration throughout the entire RPM range. All Verado engines will be available only with SmartCraft Digital Throttle and Shift for smooth, responsive control, but the new motors come with hydraulic steering or optional electric over hydraulic power steering.

Also new for 2005, the Mercury OptiMax 225 Pro XS, a high performance two-stroke Direct Fuel Injection (DFI) engine built on the 3.0 liter V-6 two-stroke block, resulted from a collaboration between Mercury's Consumer and Racing outboard divisions. Additionally, the company's pull-start 25 and 30-hp four-stroke engines feature Electronic Fuel Injection (EFI) without being attached to a battery.

Our editors are at a Mercury-sponsored test rally today and tomorrow in the Florida Keys. Look for our news report on the performance of these new engines shortly...

 

5 New Engines at Miami Show: #1--Revolutionary IPS From Volvo Penta

 

Is it an inboard? A sterndrive? No, it is Volvo Penta's new Inboard Performance System (IPS), representing the first radical change to boat propulsion in decades. Designed only for twin engine installations using the company's six-cylinder diesel engines, the drive units drop directly through the bottom of the boat just aft of the engines with no propeller shafts, struts, or rudders. 
The rotating drive units each have two counter rotating propellers on the front of the drive, rather than at the back like an outboard or sterndrive. With increased efficiency of dual props cutting into undisturbed water, Volvo's side-by-side testing of an IPS-equipped vs conventional drive on identical boats has yielded 20% more speed, 15% faster acceleration, and an incredible 30% increase in fuel economy at cruising speed according to the company. Cruisers Yachts, Regal, Four Winns, and Tiara are among the first to offer this revolutionary new system on boats in the low to mid 40-foot range. Look for BoatTEST.com's own on-water test results soon...
 

#2: Evinrude's New 115-hp E-TEC Outboard
  Evinrude's newly released 115-hp outboard is the first in a series of V-4 motors which will fill the gaps between the 40 through 90-hp and 200 through 250-hp E-TECs currently offered.

Since their inception outboards were two-stroke engines, offering simplicity and power-to-weight advantages inherent in that design, but they were inefficient and smoky. Most manufacturers were pushed to make lighter, more powerful four-strokes to meet tighter Environmental Protection Agency (EPA) and California Air Resources Board (CARB) emissions standards, but Evinrude kept the two-stroke concept and developed E-TEC, an advanced direct fuel-injection system the company claims proves to be cleaner, quieter, better performing, and more fuel-efficient than competitors' four-strokes in head-to-head comparisons. Evinrude says they are not blurring the line between E-TEC and four-stroke technology but are re-drawing it ahead of their competition. 


#3: New Additions to Yamaha Line-Up
 As it did two years ago, Yamaha won the JD Power and Associates Award for two-stroke outboards based on 12,530 survey respondents who bought new boats during the previous calendar year. The survey measured multiple criteria including reliability, quietness at cruising speed, acceleration, and lack of exhaust fumes. While there were no mid-year outboard releases at the Miami show, Yamaha's 2005 lineup added a 250-hp four-stroke, a 200-hp High Pressure Direct Inject (HDPI) two-stroke, and replaced the carburetors with electronic fuel-injection on the company's 50 through 90-hp four-stroke models. Another new feature for 2005 in tiller-controlled four-strokes is Variable Trolling Speed. Variable Trolling Speed allows anglers to adjust engine speed at the flip of a switch in 50 RPM increments from idle to 900 RPM on 50 and 60-hp motors and to 1000 RPM on the 70s and 90s.
 

 #4: Suzuki Unveils 150 & 175-hp Four-Stroke Outboards
The Miami International Boat Show saw the unveiling of Suzuki's 150 and 175-hp four-stroke outboards which will be available later this year. The inline four-cylinder, 175 cubic-inch block boasts the highest displacement in its category, according to Suzuki, which allows a larger diameter prop and more aggressive gear ratio than competitors, yet the engines are designed to be light and compact.

The DF 175 features continuously variable valve timing, multi-stage induction, and a 32-bit computer to precisely control fuel injection. "These motors promise to provide more powerful hole shots, quicker throttle response, and an exciting top end," says Larry Vandiver of Suzuki. Suzuki tied for top honors with Honda in the prestigious JD Power & Associates Award for customer satisfaction among recent four-stroke outboard purchasers. The JD Power & Associates survey found that four-stroke purchases now outnumber two-strokes in three of four outboard-powered boat segments, with the biggest increase in coastal fishing. Only bass boats continue to be delivered with more two-stroke than four-stroke outboards.
 


#5: Mercury's Verado now in 135, 150, and 175-hp versions

 Last year Mercury hit the water running when they unveiled Verado, a five-year, $100 million dollar effort to build an entirely new concept in four-stroke outboards. This year Mercury continues to make waves with new four-cylinder 135-, 150-, and 175-hp Verados, augmenting the current lineup of six-cylinder engines from 200 to 275-hp.

Be sure to check out www.BoatTest.com for tests of the latest models.
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