Mercury Racing
300R
FLEX SOME MUSCLE.
Overview
FLEX SOME MUSCLE.
Tuned up with Mercury Racing components to deliver blistering speed, the V8 4.6L 300R outboard delivers crisp throttle response, thrilling top-end power and confident control, the perfect match for a wide variety of high-performance boats. The 300R midsection and gearcase options, tie-bar and steering choices allow the creation of a near-custom configuration to provide optimal performance and ease of installation for most applications, including re-power upgrades.
300R
Call for price
FLEX SOME MUSCLE.
Specifications
| Horsepower [HP/KW] | 300 / 224 |
| Max WOT RPM | 5800 – 6400 |
| Engine Type | V8 [64 Degree] with 32-Valve Dual Overhead Cam (DOHC) |
| Displacement [LITER/CID] | 4.6 / 279 |
| Induction System | Naturally Aspirated |
| Fuel Requirements | Unleaded 87 Octane Minimum (R+M/2) or 90 RON |
| Charging [AMP/WATT] | 115 / 1449 – AMS 85 / 1071 – CMS |
| Throttle & Shift | Digital Throttle & Shift or Mechanical |
| Midsection | Racing Advanced MidSection, Tri-Ram or HD CMS |
| Gearcase | Torque Master, Sport Master or 5.44” HD |
| Gear Ratio | CMS: 1.75:1 or 1.60:1 AMS: 1.85:1 or 1.60:1 |
| Dry Weight [LB/KG] | 512 / 232 |
| Warrenty | 3-Year Limited |
Key Features
Midsection Options
The Mercury Racing 300R outboard is offered with three midsection choices, each designed for specific performance applications.
Short Runner Intake
To extract maximum performance, the Racing 300R is equipped with a Mercury Racing-designed short-runner intake, high-performance intake camshafts, an oil cooler and a performance-optimized ECU calibration that increases the WOT range to 6400 RPM.
Gearcase Options
Three gearcase options are available for the 300R outboard, each design for a specific high-performance application.
Tie-Bar Option
An optional rear tie-bar bracket integral to the Mercury Racing AMS provides a strong, ultra-light mounting point for precision steering in ultra-high-speed applications. Select HD CMS models are available with optional rear tie-bar mounting plates and side steering brackets for high speed applications when using the Sport Master gearcase.
Warranty
5 Year Limited Warranty (Pleasure use only, only if serviced by an Authorised Dealer)
World-class marine products backed by world-class warranties. We stand behind everything we build, and we go the extra mile to make sure your Mercury experience is the best it can be – on the water and off.
Downloads
Description
FLEX SOME MUSCLE.
Tuned up with Mercury Racing components to deliver blistering speed, the V8 4.6L 300R outboard delivers crisp throttle response, thrilling top-end power and confident control, the perfect match for a wide variety of high-performance boats. The 300R midsection and gearcase options, tie-bar and steering choices allow the creation of a near-custom configuration to provide optimal performance and ease of installation for most applications, including re-power upgrades.
Additional information
| Engine Type | Outboard |
|---|---|
| Usage | Performance |
| Engine Size | Large (150HP+) |
| Manufacturer Outboard | Mercury Racing |
