Friday, February 21, 2014

Powertrain: Chevrolet Camaro Z/28

Powertrain:
 
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.

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.

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.

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.

Active dual-mode exhaust system and high-flow converter assembly
The 2014 Z/28’s dual-mode exhaust system is engineered to provide high-flow and muscular sound character under aggressive acceleration, while attenuating noise levels in cruising conditions. It actively controls valves that change the flow path of the exhaust for the desired performance, depending on transmission gear and engine speed. With the valves open, the system produces less back pressure and more power from the engine. Additionally, the converter assembly has been modified to increase flow and horsepower.

TREMEC TR6060 six-speed manual transmission
Used in the Camaro ZL1 and Cadillac CTS V-Series, the TREMEC TR6060 six-speed manual has the capability to stand up to high-performance engines, with short throws, smooth gear synchronization and excellent shift feel. Design features include a combination of double-cone and triple-cone synchronizers on all gears. Double-cone synchronizers have two friction surfaces to affect gear acceleration and triple-cone synchronizers have three friction surfaces – the greater the friction surface, the easier the transmission is to shift.

5.1-ratio short-throw shifter
The Z/28 uses a 5.1-ratio short-throw shifter that provides quicker, more precise-feeling gear changes – similar to ZL1 and SS 1LE models.

Courtesy of GM Media Online: http://bit.ly/1ffLCgM

No comments:

Post a Comment