Just a few years later, they’d top this mark with their own 627-horsepower version shortly before being purchased by Volvo Penta. In 2011 industry newcomer, Seven Marine rolled out a shocking 557-horsepower outboard, at the time the most powerful outboard ever built, based on a marinized 6.2-liter GM LSA Gen IV V-8 engine designed for the Cadillac CTS-V. And in 2023 it boosted the top-end even more, with the F450. Soon it followed up with even more power, in the form of the F425. In 2007 Yamaha introduced a monstrous V-8 outboard, the F350, producing 350 horsepower. In recent years, the biggest push in the outboard engine market has most certainly been producing larger, more powerful motors. These outboard motors were extremely efficient and clean-burning, but in 2020 Evinrude went out of business and with it, production of the last of the two-strokes ceased. BRP then made major reinvestments in two-stroke technology and their new E-TEC G2 outboards were introduced. It was eventually bought by Bombardier Recreational Products (BRP).
But eventually, all of the major outboard motor manufacturers with the lone exception of Evinrude made the switch for four-strokes.Įvinrude instead developed two-stroke direct-injection in order to meet emissions standards, but early versions were a disaster and Outboard Motor Corporation (by then Evinrude’s parent company) filed for bankruptcy in 2000.
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While four-stroke engines were significantly more efficient than two-strokes of the time, they were also much heavier and more complex, so there was a lot of trial and error involved in the process. New emissions standards forced outboard manufacturers to turn in a different direction, completely replacing the carbureted two-stroke engines they depended on and instead of developing cleaner-burning four-stroke technology. The biggest turning point in modern times, however, came with EPA emissions standards first introduced in the 1990s and then phased in over a number of years. Through the earlier years of development outboard sizes gradually increased, until 1975 when the first V-6 outboards finally broke the 100-horsepower barrier and put 175- and 200-horsepower outboards on the market. Obviously, outboards have come a long way in the past century. He and Bess (by then married) produced 25 outboards in 1909 and sold them all in one day. Ole knew there had to be a better way, and he was right: he invented and built a 1.5-horsepower outboard motor that could be clamped to the back of a rowboat. But the two-and-a-half-mile trip was just too far, and by the time he returned to Bess the ice cream had all melted. When Bess expressed a desire for ice cream, Ole jumped into their rowboat and took off, rowing vigorously for the mainland.
According to the lore, Ole and his fiancé Bess were picnicking on an island in Okauchee Lake. The tale is quite famous, and with good reason – it’s an excellent example of American ingenuity. at age five in 1882, is usually credited with inventing the first outboard motor in 1906. Ole Evinrude, a Norwegian immigrant who arrived in the U.S.
See Inboard or Outboard: The Boat You’ll Buy Next, for more a more in-depth inboard-versus-outboard comparison. It also makes the engine very easy to replace in case of failure it improves a boat’s handling because outboard motors provide articulated thrust as opposed to the rudders used with inboards, and modern outboards offer an excellent power-to-weight ratio as compared to the other options. Since outboards simply get mounted to the transom of new boats, the boatbuilder’s job becomes much easier. That greatly simplifies the boatbuilding process, because with an inboard or stern drive they’d have to mount the motor and then line up and attach the drive system. A boat manufacturer can take an outboard and bolt it right onto the back of a boat, hook up the control cables and fuel lines, and the boat’s ready to go. Outboard motors have several advantages as compared to other marine propulsion systems. Like most marine power systems, the engine spins a shaft, which then spins a propeller shaft, which in turn spins a propeller to create thrust. The powerhead, driveshaft, and a lower unit with running gear (the part with the propeller that sits underwater) are all contained together in one unit. Outboard motors are fully contained marine propulsion systems that can be mounted onto the transom of a boat. Photos in order of appearance via: Nautical Ventures, Diamond Motors and Marine, C&O Marine, Sea Witch Marine, The Boat Place, Deep Creek Cove Marina, Nautical Ventures, Boaters World. The outboard motor offerings in 2022 span from small electric motors to potent four-stroke powerplants.
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