Just because an engine becomes more powerful, it doesn’t mean it has to harm the environment.
That’s certainly the case with Ford’s new 6.7litre power stroke V8 turbocharged diesel engine for the 2011 Ford F-Series Super Duty pick-up. The vehicle produces 800lb-ft of torque, an increase of 65-lb ft, and yet also boosts fuel economy by around two per cent making it around 20 per cent more fuel efficient than the 2010 model.
In fact, the additional power is actually a boost for environmental performance as the improved torque and horsepower mean the customer can get to a higher gear faster and can stay in it longer, both of which help with fuel economy.
Ford is going to offer the power upgrades free of charge to all current owners of a 2011 Super Duty diesel pick-up – customers will receive letters explaining the procedure and inviting them to visit dealerships for the upgrade.
Among the benefits of the engine are: the first use of a compacted graphite iron engine block that is optimised for reduced weight and maximum strength; novel inboard exhaust and outboard intake architecture, which reduces overall exhaust system volume; a new architecture that is easier for service work on major components; and a turbocharger with an industry-first dual-sided compressor that delivers all the benefits of a twin turbocharger in a smaller, more efficient package.
In addition, a high pressure fuel system injects fuel at more than 29,000psi for optimum power and fuel efficiency; while an aluminium cylinder head reduces weight. The engine is also compatible with B20 fuel.
