13 Fiesta Se, 1.6l 4 Cylinder, Auto, Cloth, Pwr Equip, Alloys, Clean 1 Owner! on 2040-cars

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Ford dissects the heart of the 2015 Mustang, its engine range

Happy Mustang Day. Are you tired of hearing about the 2015 Ford Mustang yet? No? Good, here's a bunch of mechanical data on Ford's sixth-gen muscle car, along with cutaways of the GT's 5.0-liter V8 and the new 2.3-liter, EcoBoost four-cylinder shown above. We also have a smattering of info on the Stang's updated transmissions and an exploded-parts-diagram view of its all-new independent rear suspension.
Ford is set to make waves offering the Mustang with a turbo for the firs time since the small-volume SVO of the 1980s. Displacing 2.3 liters, the engine's twin-scroll turbo should help the four-cylinder turn out a projected 305 horsepower and 300 pound-feet of torque, while also returning the best fuel economy in the Mustang's engine lineup. As we said in our Deep Dive, the EcoBoost will be slotted in as a premium engine, above the 3.7-liter V6 but below the 5.0-liter V8.
Speaking of that high-revving eight-cylinder, it's receiving a new cylinder head with high-flow ports. The intake and exhaust valves are larger and the cams have been replaced, among other tweaks. It should rev even higher thanks to a rebalanced crankshaft and forged connecting rods. Ford is still claiming a projected 420 hp and 390 lb-ft, although as many of the changes for the 2015's V8 come from the 2013 Boss 302, we're going to assume there's some sandbagging at work.

NHTSA closes Ford F-Series Super Duty steering probe without recall

The National Highway Traffic Safety Administration's investigation into 2008 Ford F-250 and F-350 Super Duty pickups, which was originally opened last year, has now ended without a recall. NHTSA was looking into steering failures on some 336,000 trucks.
The issue rested with the steering gear - NHTSA received five complaints of failures - which was redesigned in 2005. According to the report on the matter, investigators "found evidence of broken sector shaft gear teeth and piston damage consistent with incidents of single event overload."
NHTSA investigators, however, "found no evidence of fatigue or material property defects in any of the fractures. Analysis of complaint rates by vehicle build month showed no patterns indicating potential manufacturing quality issues and no difference before and after Ford introduced design changes to the input shaft and sector shaft seals in July 2007 to address potential leak concerns," according to the report, obtained by The Detroit News.

Ford spotted testing new Fiesta RS hot hatch

There's a lot to love about Focus ST and Fiesta ST, but if neither of those is enough for you, we've got good news: Ford has even more potent RS versions of both in the works. The Focus RS we already saw last month, but here we have our first spy shots of the smaller Fiesta RS undergoing testing. Spotted alongside still-camouflaged prototypes of its big brother, the new Ford Fiesta RS is wearing a modified front end, flared fenders packing a wider track and a revised rear-end. The beefed-up bodywork is all well and fine, but we're looking forward to finding out what's underneath it all. Sources point towards a 250-horsepower version of Dearborn's 1.6-liter EcoBoost turbo four, along with upgraded brakes and suspension. The big question, though, is whether the production Fiesta RS will pack the new performance all-wheel-drive system from its larger counterpart, or stick with front-drive and some sort of clever diff. It may be too early to tell, as this pocket rocket is likely a good year away from its debut, but in the meantime you can scope out the spy shots in the slideshow above for a taste of what's to come. Related Video: