450R Racing Outboard
Mercury
Meet the supercharged Mercury Racing 450R.
The 450R offers power, control, reliability and convenience that will shatter the expectations of the most-demanding powerboaters on the water.
Performance without compromise. From the cowl to the prop, Mercury Racing engineers sought to redefine the capability of our highest-performance outboard motor. The 450R is armed with battle-tested design features and innovative technology.
The surface piercing Sport Master gearcase delivers race-proven performance for boats capable of speeds exceeding 85 mph, with low water pick-ups and a crescent leading edge to maximize efficiency and speed. The available cambered skeg counters prop torque for improved control in single-engine installations. The 450R is also available with the 5.44 HD gearcase designed for submerged applications.
The 450R was engineered for life at wide-open throttle. The rugged Advanced MidSection (AMS) features heavy-duty guide plates and stiffened engine mounts to stabilize the outboard for enhanced high-speed handling. AMS isolates the powerhead from the transom to ensure run quality is smooth and quiet at all speeds.
An integral rear tie bar bracket provides a strong, ultra-light mounting point and uncluttered installation for catamaran and other multi-engine rigging.
The 450R is easily configurable for a variety of applications. Choose your options including gearcase, tie bar, and accent colors, plus available Joystick Piloting for Outboards (JPO).
The 450R delivers reliable, powerful performance on readily available 89-octane fuel.
Pack your transom with horsepower. The 450R features a compact design and slim-line cowl that accommodates 26-inch center-to-center mounting on multi-engine transoms. Throttle up to six outboards with a single lever using Mercury digital controls.
Unparalleled Efficiency, and the reliability to go Wide Open, all day. The 450R delivers unprecedented power with amazing efficiency. And it's backed by a three-year limited warranty.
Validated with countless hours of rigorous testing, the 450R is prepared for the abuse of high-speed performance boating. The Quad Cam valve train is maintenance-free and our corrosion protection system is unmatched.
SPECS:
Rated Horsepower - 450
kW - 336
Idle RPM - 600
Max RPM at Full Throttle - 5800-6400
Cylinders/Engine Configuration - V8 [64 degree] with 32-valve Dual Overhead Cam [DOHC]
Displacement (Cubic Inch, CID) / (Liters, L) - 279 CID / 4.6L
Bore & Stroke (in.) / (mm) - 3.6 in x 3.4 in / 92 mm x 86 mm
Induction System - Supercharged with Charge Air Cooling and Electronic Boost Control
Midsection Design - Advanced Midsection with heavy-duty guide plates and stiffened engine mounts for enhanced high-speed handling
Fuel System - Electronic Fuel Injection (EFI), Computer Controlled
Fuel Requirements - Unleaded Regular 89, Octane Minimum (R+M/2) or 95 RON, 10% Ethanol Maximum
Ignition System - SmartCraft PCM 112 Digital Inductive
Charging System - 115-amp (1449 Watt)
Starting - SmartStart Electric
Exhaust System - Selectable
Cooling System - Water-cooled with thermostat control
Lubrication System - Integrated wet sump with oil cooler
Oil Requirements - NMMA Certified FCW SAE 25W-50
Oil Capacity (qts) / (L) - 7.0 Quarts / 6.6 Liters
Engine Management System - SmartCraft PCM 112
Throttle and Shift Controls - Digital Throttle & Shift
Engine Protection System - SmartCraft Engine Guardian
Trim/Tilt System - Power trim and tilt
Maximum Tilt Range - 73° (-6° to 67°)
Maximum Trim Range - 20° (-6° to 14°)
Troll Control - 600-1200 RPM
Gearcase 450R - 5.44” HD
Gearcase 450R Sport Master - Sport Master
Gear Ratio - 1.60:1
Cambered Skeg - Available
Gear Shift - F-N-R
Dry Weight (lbs./kg)1,2
L - 20" - 689/313 (450R) | 700/318 (Sport Master)
XL - 25" - 702/318 (450R) | 714/324 (Sport Master)
XXL - 30" - 715/324 (450R) | 725/329 (Sport Master)
Steering Angle - +/- 30 degrees
Steering - Electro-Hydraulic Power Steering with Integral Steering Cylinder
Mounting Centers - 26”
CARB Star Rating3 - 3-Star
Colors - Phantom Black or Cold Fusion White
Warranty - 3-Year Limited
1. Dry weight refers to base engine without liquids, battery cables, bolt-on steering components, mounting hardware, or propeller/hub kits.
2. Add 13 pounds (5.90 kilograms) for rear tie-bar models.
3. Worldwide emissions calibration certification.
