Ford’s achingly slow rollout of final details on the 2015 Mustang, from pricing to special features to options availability, is finally coming to a head. The automaker has at long last revealed output figures for each of the pony car’s three available engines, and they’re not wildly different from our estimates. Ford also released technical details for the Mustang’s V-6, turbocharged EcoBoost four-cylinder, and V-8 engines, as well as weight figures for coupes equipped with the engines.
Here are the output figures, model by model:
Mustang 3.7-liter V-6: 300 horsepower and 280 lb-ft of torque, choice of six-speed manual or six-speed automatic transmission.
Mustang 2.3-liter EcoBoost I-4: 310 horsepower and 320 lb-ft of torque, choice of six-speed manual or six-speed automatic transmission.
Mustang 5.0-liter V-8: 435 horsepower and 400 lb-ft of torque, choice of six-speed manual or six-speed automatic transmission.
A few key takeaways from the numbers listed above: The V-6 sees its peak-horsepower figure drop by five ponies relative to the 2014 model’s V-6, while the V-8′s horsepower and torque increase by 15 and 10. The eight’s power boost comes largely by way of improvements cribbed from the now-defunct Mustang Boss 302′s version of the same 5.0-liter Coyote V-8. The intake and exhaust valves are larger, the camshafts and pistons were revised, the valve springs stiffened, and a forged crankshaft and connecting rods were fitted to support higher engine speeds. The cylinder heads are new and feature lower-restriction intake and exhaust porting.
Happily, our reporting on the 2015 Mustang’s curb-weight increases was spot-on: The new ‘Stang is only marginally heavier than the outgoing model. Specifically, Ford’s claimed curb weights reveal that the V-6 manual coupe carries just 30 additional pounds (for a total of 3526 pounds), while the automatic-equipped version gains 12 pounds (for a total of 3530). The V-8–powered GT coupe gains 87 pounds in manual form (for a total of 3705 pounds) and 54 pounds in automatic guise (for a total of 3729 pounds). The EcoBoost is claimed to weigh nearly the same as the V-6 version, at 3532 pounds with the manual and 3524 with the automatic. No official weight figures for the Mustang convertible were provided, but a previous leak of information indicates that they’ll weigh roughly 120 pounds more, regardless of engine.
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The weight figures likely mean that 2015 Mustangs with the carry-over engines should perform pretty much the same as their predecessors in a straight line, which is to say they’ll be plenty quick. Of course, we’re curious to measure the performance of the new 2.3-liter EcoBoost version, given its impressive torque advantage over the V-6. We’ll have to wait for a full test of each model to draw final conclusions, but we’re not seeing anything to make us less excited to drive Dearborn’s latest pony.
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