300R

DESCRIPTION

The 300R FourStroke is the highest performing engine in its class. The naturally aspirated 4.6L V-8 provides an astounding 44% in increased displacement and up to 40% higher overall bottom end torque than the legacy two-stroke 300XS it replaces. Custom Racing intake cam profiles and short intake manifold runners maximise power throughout the rated speed range. An integrated oil cooler keeps oil temps down throughout the Racing exclusive 5800-6400 rpm operating range. Transient spark calibration boosts torque by 7% for unmatched acceleration. Advanced Range Optimisation (ARO) automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on regular 91-RON Unleaded fuel.

Spesification
RATED HORSEPOWER (HP/KW) 300/224
BORE & STROKE (IN/MM) 3.6 X 3.4/92 x 86
IDLE RPM 600
MAX RPM AT FULL THROTTLE 5800-6400
CYLINDERS/ENGINE CONFIGURATION V-8 (64 degree) with 32-valve Dual Overhead Cam (DOHC)
DISPLACEMENT (LITER/CID) 4.6/279
INDUCTION SYSTEM Custom Racing Short-Runner Intake Manifold
FUEL SYSTEM Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
FUEL REQUIREMENTS Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
IGNITION SYSTEM SmartCraft PCM 112 Digital Inductive
CHARGING SYSTEM 85-amp (1071 Watt) with idle Charge
STARTING Electric Start with SmartStart Protection
LUBRICATION SYSTEM Integrated wet sump
OIL REQUIREMENT NMMA Certified FCW SAE 10W-30
THROTTLE AND SHIFT CONTROLS Mechanical and Digital Throttle and Shift (DTS)
TRI-RAM MIDSECTION High-Durometer Elastomer Upper Mount and Solid Lower Mounts
HEAVY DUTY MIDSECTION Solid Mounts; Remote Trim System
GEARCASE Torque Master, Sport Master or 5.44" HD
GEAR RATIO 1.75:1
CAMBERED SKEG Sport Master and Torque Master
GEAR SHIFT F-N-R
DRY WEIGHT (LBS./KG)
L - 20" Std: 512/232; HD: 546/247
XL - 25" 556/252
XXL - 30" 566/257
WARRANTY 3-Year Warranty
Engine 1
Engine Make Mercury
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