Description

2017 Mercury Racing 400r engine

2017 Mercury Racing 400r engine

Mercury Verado 400R Outboard Motor For Sale

Mercury Marine has scored with its Verado 400R. This masterpiece of marine engineering has no peers, yet for all its grunt it weighs 15 per cent less than its closest four-stroke competition, which develops only 350hp but needs a 5.3-litre V8 with quad camshafts to do so.

Even more amazing, the Mercury 400R power head has the same displacement as the Verado 200, which produces maximum power at 6100rpm, but doubles the output while revving only 600rpm higher. For all this power and torque, the WOT rpm range is only 6400 to 7000. Apart from different fuel mapping for the sequential multipoint EFI engine, the massive output increase is achieved by fitting a water-cooled supercharger, a radiator-style oil cooler and air intake vents around the power head top to supply more air to help dissipate heat. With power steering it’s 309kg – only seven per cent up on the 200.

Unusually for a four-stroke outboard motor, the maximum fuel efficiency zone is 4500 to 5500rpm, which really suits performance hulls. The engine has full OEDA three-star exhaust emissions compliance, achieved through excellent low rpm to midrange fuel efficiency. When trolling, the small displacement power head uses way less fuel than the big displacement competition.