2015 Chevrolet Camaro Z28

Chevrolet introduced the restyled 2014 Camaro line at the 2013 New York Auto Show, including the return of the Z/28, the most iconic model in Camaro history.

 2014 Chevrolet Camaro Z28

The 2015 Camaro models feature a revised exterior design that integrates high-performance aerodynamics for more efficient cooling and stability at high speeds. The new Chevy Camaro Z/28 also features a full aerodynamics package that creates downforce at speed, which helps make it the most track-capable offering in Camaro's history.

While the new Camaro Z/28 is not intended to compete in a specific race series, it is solely focused on track capability. In initial testing, the Camaro Z/28 is three seconds faster per lap than the Camaro ZL1. That extra speed comes from three areas:

• Increased grip: The Z/28 is capable of 1.05 g in cornering acceleration, due to comprehensive chassis revisions.
• Increased stopping power: the Z/28 features Brembo carbon-ceramic brakes capable of 1.5 g in deceleration, and consistent brake feel, lap after lap.
• Reduced curb weight: The naturally aspirated Z/28 weighs 300 pounds less than the supercharged Camaro ZL1, with changes ranging from lightweight wheels to thinner rear-window glass

Like the original, the 2014 Chevrolet Camaro Z/28 is offered only with a manual transmission. In a nod to modern convenience, air-conditioning is available, but only as an option.

"We set out to make the fastest road-racing Camaro possible that was still street-legal," said Al Oppenheiser, Camaro chief engineer. "While the Camaro ZL1 offers exceptional performance on the street, the drag strip, and the track, the Z/28 is entirely focused on the track performance. The Z/28 will be too track-focused for most drivers, but offers road-racers one of the most capable track cars ever offered from an automaker."

Camaro Z/28 chassis delivers 1.05 g in cornering grip

The singular focus of the Camaro Z/28 is most evident in the chassis, where the most has been made of every component for track use, from the ultra-high performance tires to race-proven dampers.

"We used the very best components in the industry to deliver uncompromised performance, lap after lap," said Mark Stielow, Camaro Z/28 engineering manager. "We made nearly 200 changes to improve the track performance, which cumulatively make the Z/28 capable of 1.05 g in cornering. For perspective, with all other things, equal increasing maximum grip from 1 to 1.05 g can cut up to four seconds per lap."

The Camaro Z/28 is the one of the first production cars fitted with race-proven, spool-valve dampers. Compared to a conventional damper that offers only two-way tuning for bump and rebound, a spool-valve damper allows four-way adjustment to precisely tune both bump and rebound settings for high-speed and low-speed wheel motions. The wider tuning range allowed engineers to dramatically increase the damper stiffness on the Camaro Z/28 without a significant change in ride quality. Additional chassis changes include stiffer string rates and suspension bushings for improved cornering response.

Extensive lightweighting saved 300 pounds over the Camaro ZL1

To optimize the track performance of the Camaro Z/28, the engineering team subjected it to an intensive lightweighting program, saving 100 pounds (45 kilograms) compared to the naturally aspirated Camaro SS and 300 pounds (136 kilograms) to the supercharged Camaro ZL1.

"We looked at every subsystem for opportunities to save weight," said Oppenheiser. "Our goal was to get rid of everything that didn't make the car faster, and keep only what was required by law. For example, we wanted to eliminate the audio system completely, but we had to keep a single speaker for the seat-belt chime to meet safety requirements."

Other examples of weight savings include:

• Eliminated the tire-inflator kit, except for Rhode Island and New Hampshire, where it is required by law.
• Removed interior sound deadener, and carpeting from the trun.
• Replaced the standard LN4 battery with a smaller, lightweight, LN3 battery.
• Specified thinner, 3.2-mm glass for the rear window, compared to 3.5-mm glass on the standard Camaro.
• HID headlamps and foglights are not available.
• Air conditioning is only available as a stand-alone option

High-performance aerodynamics highlight changes for 2014 Camaro

The 2015 Chevrolet Camaro represents the most significant redesign since the introduction of the fifth-generation Camaro as a concept car in 2006.

"The 2015 Chevrolet Camaro Z/28 is our opportunity to apply what we have learned listening to our customers, and our continuing development of high-performance models," said Tom Peters, Camaro exterior design director. "We look for solutions that are both functional and beautiful so that the result is genuine Chevrolet - simple, powerful, honest, and more than expected."

7.0L, LS7 the heart of the Camaro Z/28's track-capable performance

Like the original, the new Chevrolet Camaro Z/28 forgoes ultimate horsepower and torque for improved weight balance and track performance.

In 1967, the most-powerful engine available in a factory Camaro was a 396 cid V-8 with 375 horsepower. To prepare the Camaro Z/28 for road racing, engineers specified a lighter, 302 cid V-8, officially rated at 290 horsepower. While the 302 was not the choice for drag racers, it proved ideal for sports-car racing.

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