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NEWS
World's Most Powerful Outboard
- 557hp of supercharged V8 GM grunt!After extensive product development and sea trialling, Seven Marine in America released the world’s most powerful outboard engine at the recent Miami boat show. The 557 — that’s horsepower — uses a proven 90-degree 6.2L small-block Cadillac alloy V8 coupled to a ZF CAN-bus controlled disc-clutch transmission and joystick docking controller.
From subsequent sea trials during the show, acceleration was said to be constant rather than neck-snapping, with a wide supercharged power band. The engine also sounds beautifully smooth, see video below. while looking eye catching behind a compact powder-blue and carbon cowl. But your choice of custom colours and graphics (as pictured).
At wide-open throttle (WOT) of 5400rpm, Seven Marine claims a pair of pre-production 557s powered an Intrepid 370 Cuddy into the mid-70s (mph), some 10 per cent faster than it’s ever gone, while a pair of Seven Marine 557s cruised where existing triples were at WOT.
The weight (475kg each) and drag reductions from using a single 557 instead of twins, or twins instead of triples, leads to fuel savings of 17-20 per cent, claims Seven Marine. And that’s using 87 octane petrol. But you’ll need some US$70,000 excluding delivery to buy one. More at www.seven-marine.com.
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Written byBoatsales Staff
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Please see our Editorial Guidelines & Code of Ethics (including for more information about sponsored content and paid events). The information published on this website is of a general nature only and doesn’t consider your particular circumstances or needs.
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