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Ford updates Power Stroke diesel V8, strengthens F-450, tweaks King Ranch

Ford is giving its F-Series Super Duty trucks some upgrades for 2015, and we're happy to say that one of them is an improved Power Stroke diesel V8. Also, Ford is strengthening the top-of-the-line F-450 to handle more abuse. And if wild west-style luxury is your thing, the automaker has performed minor cosmetic updates to its King Ranch Edition trucks, as well.
The turbocharged 6.7-liter Power Stroke V8 is currently rated at 400 horsepower and 800 pound-feet of torque, and Ford only tells us the new and improved Power Stroke can "produce power beyond today's" engine. What, then, did Ford actually improve upon? First, the Blue Oval swapped in a new, larger turbocharger. The new Garrett GT37 turbine unit is 72.5 millimeters in diameter, eclipsing the old GT32's 64-mm diameter piece. Ford states output increases with the new turbo setup, but since the new turbocharger operates at a lower peak pressure than the old one, the automaker was able to eliminate the wastegate system and reduce the engine's complexity. Ford even redesigned the turbo's oil and cooling lines to make the powerplant simpler. A byproduct of the larger turbo is better engine exhaust braking, which is controlled manually by a button on the dashboard.
Ford claims the upgraded diesel engine is more powerful, more robust, more efficient and more refined than before.

Submit your questions for Autoblog Podcast #310 LIVE!

We record Autoblog Podcast #310 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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Ford Fiesta 1.0L EcoBoost sales robust in early going

Okay, okay, okay, so I was just a smidge wrong. Those that read my review of the Ford Fiesta with the new 1.0-liter, EcoBoost engine will know that while I really enjoyed the torquey little three-cylinder, I was concerned that Ford's decision to force 1.0-liter owners into a manual transmission, steel wheels and one trim level might hurt sales of the new engine. I was also concerned that the promised 45-mile-per-gallon highway rating wouldn't be enough to tempt buyers into trying an engine that's so far outside of what the general public is use to. My concerns, though, seem to have been for naught.
While not doing a booming business on the triple-equipped Fiesta, Ford is seeing a take rate of four to eight percent per month in the engine's first few months on sale. Now, four to eight percent might not sound like a lot - if, like last year, the Fiesta sells around 71,000 units, there'd be barely 5,600 1.0-liter models on the road. It is also small potatoes relative to the take rate on EcoBoost-equipped vehicles across the Ford range, which US sales analyst Erich Merkle estimates to be roughly 35 to 40 percent of retail sales. Still, according to The Detroit News, the 1.0-liter is getting adopted at roughly the same rate as the sparkling Fiesta ST, which should be a solid indication of just how well this little engine is doing.
The 1.0-liter's success "really speaks volumes, not just to what we're doing with the Fiesta, but with EcoBoost in general," Merkle told Autoblog.