OptiMax 300XS Key Features
3.2 Liter V-6 Powerhead features stroked and balanced crankshaft for maximum displacement and performance
Extensive R & D result in Formula 1 race based exhaust porting and reed block fuel induction design for top power
New combustion chamber design results in engine producing peak power longer at upper end of operating RPM range
A unique two-stage direct-injection system atomizes fuel into small, uniform particles, resulting with a complete and instantaneous combustion.
Fuel/air mixture is injected into the combustion chamber at 95 psi (15 psi higher fuel/air differential than standard DFI or OptiMax product) for enhanced high rpm running quality.
New PCM 07 microprocessor features a 14-pin Deutsch connector harness which incorporates engine ignition and SmartCraft CAN (controller area network) wiring in one connector
The SmartCraft Engine Guardian system monitors engine functions for early indications of problems that could lead to engine damage.
The 60-amp, belt-driven alternator is the most powerful in its class.
Electronic multipoint lubrication system delivers precise amounts of oil where and when it's needed.
Acoustically tuned foam cowling wrap and new exhaust bucket design results with quieter engine sound throughout the operating range.
Through hull Noise Vibration Harshness (NVH) is further reduced on 25" and 30" models thanks to the used of softer upper and lower engine mounts.
A new exhaust system, along with a foam lined cowl and attenuator for the compressor greatly reduces the operating Dba.
Torque Master, Sport Master and new Heavy-Duty Fleet Master gearcases are enhance the versatility of the worlds most powerful available for virtually any application.
Propshaft Rated Horsepower (HP / kW) 300 (224kW)
Full Throttle RPM Range: 5400-5800 (20" models 5400-6100)*
Cylinders V-6 (60 degree vee)
Displacement 193 cu. in. (3160cc)
Bore & Stroke (in) 3.63 (92 mm) x 3.11 (79 mm)
Fuel Induction System 2-Stage Direct Fuel Injection
Ignition System PCM 07 Digital Inductive
Charging System 60-amp (756 watt) w/Voltage Regulator
Gear Ratio 1.62:1, 1.75:1 (SM), (TM) or 1.75:1 (FM)
Lubrication System Electronic Multipoint
Recommended Oil Mercury Premium Plus (TC-W3)
Fuel Requirements 91 Octane Minimum (R+M)/2 (96 RON)
Rotation Right or Left-Hand (FM), (SM) Right-hand (TM)
Shaft Length (inches) 20/25/30
Shaft Length (mm) 508/635/762
Weight (lbs / kg) (L) 505 lbs. (229 kg) (XL) 517 lbs. (235 kg) (XXL) 534 lbs. (242 kg)
Warranty Two-year limited warranty for recreational boating and three-year limited corrosion warranty. One-year limited Mercury Product Protection Plan available.