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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.

2015 Ford Mustang EcoBoost

Earlier this week, Ford invited us to Charlotte, NC, to ride in an all-new 2015 Mustang fitted with its turbocharged 2.3-liter EcoBoost four-cylinder. It's the first forced-induction, four-cylinder ponycar for the Blue Oval since the sun set on the 1986 Mustang SVO. We jumped at the opportunity, as only a handful of people have ever been in the passenger seat of this new car, and most automotive media won't get as close as we did until this fall.
As we revealed in our Deep Dive, Ford will slot this new turbocharged four as premium powerplant between its naturally aspirated 3.7-liter V6 and the naturally aspirated 5.0-liter V8. At last mention, the automaker said the direct-injected, all-aluminum engine will develop 305 horsepower and 300 pound-feet of torque, returning the best fuel economy of the three powerplants in the process. History buffs will note that those figures are appreciably stouter than the 200 horses and 240 lb-ft that the '86 SVO realized out of the same displacement, and the latter's figures were hugely impressive at the time. On paper, the new EcoBoost four looks to be a good fit for most owners who want to balance performance with efficiency - we were eager to see how it felt from the passenger seat.
Riding Notes

Ford Mustang GT350 drops some camo

Now that we've poured over the 2015 Ford Mustang in its standard form, it's time to look ahead. We already knew (and heard - literally) that Ford was working on a higher-performance version of its 'Stang to replace the Shelby GT500, and earlier reports have stated that it will simply be called the GT350.
We don't have a ton of detail to go on, but this latest set of spy photos clearly shows a hood-mounted air scoop, which suggests a forced-induction powerplant is under the hood. However, this disagrees with earlier reports that the GT350 will be all motor, using a naturally aspirated engine to send massive horsepower to the rear wheels. Our spies also point out the functional vent aft of the front wheels to allow for better airflow, and the massive quad exhaust pipes can be seen, clear as day.
Expect to see the Mustang GT350 in April, when it debuts at the New York Auto Show in conjunction with the Pony's 50th anniversary. In the meantime, have a look at our gallery above to see the latest shots of the hot Mustang out testing.