2015 SHELBY GT350 MUSTANG: LEGEND RETURNS!

All new GT350 Mustang comes standard with 500-plus horsepower V8, the most powerful naturally aspirated Ford production engine ever.
The original Shelby GT350 introduced in 1965 established Mustang’s performance credentials on the street and road racing circuits worldwide. It builds on Carroll Shelby’s original idea – transforming a great every-day car into a dominant road racer – by taking advantage of a dramatically improved sixth-generation Mustang to create a truly special high-performance car.

Ford engineers took an innovative approach with the GT350. Rather than develop individual systems to perform well independently, every component and shape is optimized to work in concert; balance is the key.

“When we started working on this car, we wanted to build the best possible Mustang for the places we most love to drive – challenging back roads with a variety of corners and elevation changes – and the track on weekends,” said Raj Nair, Ford group vice president, Global Product Development. “Every change we made to this car was driven by the functional requirements of a powerful, responsive powerplant – nimble, precise handling and massive stopping power.”
Early in development of the GT350, it was decided a high-revving, naturally aspirated V8 engine would best suit a track-focused Mustang.

“The final product is essentially an all-new powerplant unique to GT350 – and one that takes true advantage of the new chassis dynamics of the Mustang platform,” said Jamal Hameedi, chief engineer, Ford Global Performance Vehicles.

Powering the GT350 is a 5.2-liter engine, the first-ever production V8 from Ford with a flat-plane crankshaft, an architecture typically found only in racing applications or exotic European sports cars. Unlike a traditional V8, where the connecting rods are attached to the crankshaft at 90-degree intervals, this design evenly spaces all crank pins at 180-degree intervals. The 180-degree, flat-plane layout permits a cylinder firing order that alternates between cylinder banks, reducing the overlap of exhaust pressure pulses. When combined with cylinder head and valvetrain advancements, this permits better cylinder breathing, further extending the performance envelope of the V8.

The result is the most powerful naturally aspirated production Ford engine ever, at more than 500 horsepower, with a torque peak above 400 pound-feet. The track capability is enhanced by the output characteristics of the engine – the 5.2-liter V8 features an exceptionally broad torque curve. Combined with its high-revving ability, the flat-plane 5.2-liter V8 gives drivers an enormous amount of performance and flexibility within each gear of the lightweight six-speed manual transmission. A standard Ford-tuned Torsen limited-slip differential optimizes cornering grip and straight-line traction.

The new Mustang platform is the strongest in the history of the brand, with torsional stiffness increased 28 percent over the previous model. That stiff structure ensures the suspension geometry remains consistent, even under hard driving on back roads and tracks. Front stiffness is further improved on the GT350 with a cutting-edge injection-molded carbon fiber composite grille opening and optional lightweight tower-to-tower brace. The front track has been increased while spring rates and bushings have been recalibrated all around, with ride height reduced compared to Mustang GT.

Due to the significant speeds the car can develop, the GT350 features the most track-credible brake system ever offered on a Ford vehicle in terms of absolute stopping power, fade resistance and brake pedal feel. The brakes are two-piece cross-drilled iron discs mounted to aluminum hats. At the front are massive 394-millimeter rotors clamped by Brembo six-piston fixed calipers with integrated caliper bridges, while 380-millimeter rotors at the rear utilize four-piston calipers. GT350 makes use of extra-stiff 19-inch aluminum-alloy wheels – 10.5 inches wide in front, 11.0 inches in the rear – shod with Michelin Pilot Super Sport tires with GT350-specific sidewall construction, tread face and compound.

Ultra-quick responsiveness to changing conditions is provided by the first-ever Ford application of continuously controlled MagneRide dampers. The dampers are filled with a hydraulic fluid impregnated with iron particles. When an electric current is passed through the fluid, a near-instant adjustment of the suspension performance can be made. With wheel position sensors monitoring motion thousands of times per second combined with other vehicle data, changes can be made to each corner independently every 10 milliseconds for optimum handling performance. This is a system designed not just to make the car handle better but to instill greater confidence in even the best driver.

 “Everything we changed on GT350 is purely functional-driven design, with the goal of improving the overall performance of the car,” said Chris Svensson, Ford design director, The Americas. “We optimized the aero shape of the car, and then fine-tuned what was left to increase downforce and cooling airflow.” All bodywork from the windshield forward is unique to this high-performance model and up to two inches lower than a Mustang GT.

The new aluminum hood has been lowered and sloped, compared to the base Mustang, tightly wrapped around the engine for the smallest possible aerodynamic signature. Front and rear aero elements have been balanced to work together on the track. The fascia has been sculpted to provide the aggressive lower front splitter with maximum pressure and a ducted belly pan delivers significant downforce. The hood outlet acts as a heat extractor while also reducing underhood lift at high speed.

At the rear, much of the engineering was focused on creating an aggressive functional diffuser doing double duty to increase downforce and provide cooling air to an optional differential cooler. A subtle lip spoiler across the trailing edge of the deck lid increases downforce without adding excess drag.

The athletic stance of the all-new Mustang is further accentuated with re-contoured aluminum front fenders to accommodate the wider front track and wider wheel arches. Front fender vents work with vented inner fenders to draw out turbulent air in the wheel wells and smoothly direct it down the side of the car. The forward-angled grille is designed with individual openings to draw air through the radiator, high-pressure engine air intake, cooling ducts for the front brakes and, optional with the Track Pack, an engine oil cooler and a transmission cooler.

Like everything else about GT350, the interior has been optimized for driving, beginning with the specially designed Recaro sport seats with a unique cloth. Hundreds of hours and many prototypes went into a seat that is both comfortable in daily driving and capable on the track. A flat-bottom steering wheel makes it easier for the driver to get in and out, and is more ergonomic on the racetrack. Gauges are upgraded to reflect the enormous performance capability of the car. Chrome and bright finishes have been reduced or eliminated to prevent sun glare that may distract the driver.

The advanced technology inherent to Mustang has been deployed for duty in the Shelby GT350. An all-new integrated driver control system allows selection of five unique modes that tailor ABS, stability control, traction control, steering effort, throttle mapping, MagneRide tuning and exhaust settings, depending on driver preference, to achieve maximum performance.

For more information on the latest Mustangs, please visit
http://www.ford.com/cars/mustang/

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