This engine has been brought to life by Honda Marine and is known as the BF350. Sure, it won't be powering any of the company's cars or motorcycles, but it will work for boats over 25 feet (7.6 meters) and promises good performance as well as smooth power delivery and "excellent fuel efficiency."
The all-new Honda Marine BF350 5-liter V8 outboard delivers 350 horsepower at the propeller shaft and runs on 86 octane unleaded gasoline (versus premium unleaded). Maximum power is available at 5500 rpm.
It also uses Honda’s famous Variable Valve Time & Lift Electronic Control (VTEC) system that uses a mild cam profile at low rpm and a high-output cam profile at higher revs. Honda has also incorporated its Boosted Low Speed Torque (BLAST) system that advances ignition timing when the accelerator is fully depressed.
Honda BF350 SeaVee
A handful of technologies have also been developed to improve fuel efficiency. For example, Lean Burn control technology adjusts the air/fuel mixture according to speed and load while Programmed Fuel Injection delivers just the right amount of fuel and air into each cylinder. Honda’s Friction Reduction Technology adds ion plating to the piston rings and also contributes to strong efficiency.
Complementing the V8 engine is Honda’s Intelligent Shift & Throttle command and control system operated through a top-mount controller with separate buttons for Trim Support, Automatic Tilt, Cruise Control, and Trolling Mode.
The BF350 isn’t light, nor is it cheap. In fact, it tips the scales at 765 lbs (347 kg) in its lightest form and while Honda hasn’t officially announced pricing, a recent leak suggests that it’ll cost an eye-watering $46,000.
Source: Honda
