Amazing tidbit: the Chevrolet bow-tie on this Z/28 is just a clear outline. Saves weight, helps aero — no doubt.
The Camaro Z/28 is setting an immensely high bar for any 2015 Mustang to match.
In fact, the full adamantium rigidity and weight-loss program of the Z/28 seems likely to make this 505-horsepower screamer a very brutal BMW M4 track benchmark as well.
Chevy just released a fresh batch of mouth-watering facts and images of the Z/28 in white and super duper red. All over gloss black for the street-racer performance mods all around.
This is a close match for the original ~1969 Z/28, as well as the upcoming Bumblebee in Transformers4.
In a full metacircle, Bumblebee gains an origin story that
will may see a mad black 1969 Z/28 battling to save humanity alongside the slim-light style of the movie car in regular yellow Bumblebee style.
Overall, very exciting times in fast Camaro country.
28 Ways Chevrolet Camaro Z/28 Rules the Road Course
DETROIT – Lightweight, nimble and incredibly powerful, the original Z/28 was designed for road racing. The 2014 Z/28 carries the same spirit, with every detail engineered specifically to create the ultimate track-capable Camaro.
To enable the Z/28 to quickly lap the most challenging road courses, engineers and designers focused on strengthening three key areas during development:
- Increased grip: The Z/28 is capable of 1.08 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 and 55 pounds lighter than the Camaro 1LE – with changes ranging from lightweight wheels to thinner rear-window glass.
To enhance the balance and overall driving feel of the Z/28, 100 percent of the unsprung mass – suspension, wheels, tires and brake system – differs from the Camaro SS.
“Like the first-generation Z/28, the new model is a road racer first and foremost. It features a wide range of state-of-the-art exterior performance modifications, and weight-reduction measures. It was bred for the track, pure and simple,” said Mark Stielow, Camaro Z/28 engineering manager.
Exterior Design and Aerodynamics
With the driving goal focused on peak performance capability, nothing on the exterior is without purpose. It shares several racing-inspired, design best practices and lessons learned with the 2014 Corvette Stingray. New and revised exterior content was developed to improve aerodynamics, powertrain cooling and brake-system cooling, helping the Z/28 produce 150 pounds of downforce at 150 mph.
Here are 28 features that helped the Camaro Z/28 lap Germany’s famous Nürburgring road course four seconds faster than the Camaro ZL1.
1. Rear spoiler with ‘wickerbill’
The aerodynamic coefficient of drag goal was achieved with original Camaro SS content and an accessory rear spoiler, but to meet the downforce requirements for Z/28, the spoiler was modified with a “wickerbill” – a small, vertical tab at the edge of the spoiler. Although an aesthetically minor change, it helped improve rear lift performance by 70 counts. That allows the Z/28 to handle turns at higher speeds and deliver greater overall high-speed stability.
2. Unique front fascia
The Z/28’s unique front fascia is based on the Camaro SS, but the fog lamps, air dam and the upper-base grille are replaced with covers that reduce weight from deleting fog lamps, an air duct support bracket, an airflow-optimized grille for enhanced cooling and a modified fascia bottom that incorporates provisions for the brake cooling ducts. They funnel air from the lower grille to the wheelhouse liners and the unique splitter.
3. Front splitter
The Z/28’s front splitter is a large aero panel that provides downforce at the front of the car, enhancing cornering capability and high-speed stability. Designed to withstand 250 pounds of downforce at its tip, it is matched with an aero closeout panel under the front of the engine compartment that also enhances aero characteristics – along with molded-in aero features forward of the front wheels.
4. Hood extractor
A functional carbon fiber hood extractor provides increased engine cooling by allowing hot air an exit route. The design is similar in function to the extractor featured on the Camaro ZL1.
5. Rocker moldings and wheel flare moldings
Specific rocker moldings provide aggressive styling and improved aerodynamic performance, while unique wheel flare moldings cover the Z/28’s wide tires. Deflectors at the bottom-front corners of the front wheel flares contribute to the car’s downforce-producing aerodynamics.
6. Front wheelhouse liners
Unique wheelhouse liners with closeouts work with the vehicle underbody to make the most of airflow.
7. Belly pan
The Z/28 underbody incorporates a belly pan that helps reduce front lift. Developed using computational fluid dynamics and wind-tunnel testing. It provides an aero benefit and contributes to drivetrain cooling. Modified NACA duct profiles are designed to draw air into the underbody tunnel area, where the highly energized air provides extra cooling for underbody components affected by the exhaust heat energy of the LS7 engine.
Making the most of mass is a key component of the Z/28’s performance capability, contributing to a balanced feel and a high power-to-weight ratio. With a curb weight of 3,820 pounds and 505 horsepower (376 kW), the Z/28 has a power-to-weight ratio of 7.6:1 – or one horsepower for every 7.6 pounds of the car’s mass. That compares favorably to other performance coupes, including Audi RS 5 (8.9:1), BMW M3 (8.9:1) and Porsche 911 Carrera (8.7:1).
The Z/28’s curb weight is approximately 300 pounds less than the ZL1 and about 55 pounds less the 1LE, despite features that add mass, including a dry-sump oiling system with a 10.5-quart reservoir, higher-mass chassis and suspension components such as the support brackets for the front splitter. Engineers offset the mass of those necessary features with a targeted weight-loss program that trimmed the Z/28 to the essential elements of performance.
8. Thinner rear window glass
Reducing the thickness of the rear window glass from 3.5 mm to 3.2 mm saved 400 grams.
9. Lightweight rear seat
Although it looks like the rear seat in the SS, the Z/28’s rear seat is 4.7 kilograms lighter due to reduced seat foam and a fixed seatback design with no folding/pass-through feature.
10. Lightweight wheels and tires
The Z/28’s 19-inch aluminum wheels save 8.7 kilograms compared to Camaro SS wheels. Their thin split-spoke design features a back-cut at the rim, reducing mass at the outermost area of the wheel – and reducing spin inertia by 5 percent, for enhanced performance. They are matched with track-capable tires that save 13.2 kilograms per vehicle, compared to the SS.
11. Carbon ceramic brake rotors
Lighter than comparably sized steel brake rotors, the Z/28’s carbon ceramic rotors save 9.6 kilograms, while also reducing un-sprung weight for immediate, responsive handling.
12. No Air conditioning
Because the Z/28 is intended for the track, air conditioning was deemed non-essential component. The deletion saved 12.9 kilograms. Air conditioning is available as an option.
The Camaro Z/28’s powertrain is rooted in the 7.0L LS7 engine that made the Corvette Z06 an instant performance icon. With an SAE-certified 505 horsepower (376 kW) and 481 lb-ft of torque (652 Nm), it complements the lightweight vehicle components to give the car its 7.6:1 power-to-weight ratio while delivering the power to accelerate strongly out of corners and achieve high straightaway speeds.
A close-ratio six-speed manual transmission is the only transmission offered and power is distributed to the rear wheels via a limited-slip differential featuring a helical gear set, rather than traditional clutch packs. The new design enables the driver to apply more power and get through corners faster, by continuously adjusting the torque bias to maximize available traction.
The differential works in unison with Chevrolet’s proprietary Performance Traction Management system, which allows drivers to adjust the level of throttle and brake intervention to match their capability and driving environment.
13. LS7 engine with dry-sump oiling
The racetrack-bred LS7includes features designed for the high-rpm environment of the track, including a durable forged-steel crankshaft, lightweight titanium connecting rods and high-flow cylinder heads with lightweight titanium intake valves. It also features a racing-style dry-sump oiling system that helps ensure adequate oil pressure during high-load cornering.
14. Air intake system
The LS7 uses a unique open air box intake system to make the most of high-rpm airflow into the engine. It features a K&N conical air filter and delivers the highest airflow performance of any production Camaro filter system. The air cleaner seals around bottom of the hood, reducing the chance of recirculated hot air being drawn into the engine.
15. Track-capable fuel system
Engineered to meet the fueling demands of the high-output LS7 engine during aggressive driving maneuvers, the road course-ready fuel system is designed to keep the primary fuel pump reservoir full even under hard cornering and maximize the amount of fuel available during high-performance maneuvers around the most grueling road courses.
16. Active dual-mode exhaust system and high-flow converter assembly