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Mercury reveals 360 APX F1H2o motor

Mercury Racing have today officially announced their new 360 APX motor that has been built for competition in the UIM F1H2o series.

The 360 APX is based on a modified version of the Mercury Racing 300R 4.6-liter V8 powerhead.

The engine is normally aspirated and retains its dual overhead cam/four-valve architecture. The compression ratio is increased from 10:1 to 11:1 and peak rpm is boosted from 6400 RPM to 7000 RPM.

The 12-inch midsection is all-new and designed specifically for Formula 1 tunnel boat applications, with a structural wet sump driveshaft housing and integrated power trim and lift with remote pumps.

An evolved version of the Mercury Racing Super Speed Master (IV SSM) outboard gearcase is direct-drive with no neutral or reverse shifting. Above-water exhaust offers unrestricted flow and produces an exciting tone for racing fans.

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Mercury Racing General Manager, Stuart Halley, introduces the 360 APX – the first of the new Mercury Racing Apex Series of outboards designed for closed-course competition.

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