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Most-Powerful Production Camaro
Supporting the dynamic track
and street performance of the Camaro ZL1 is the LSA 6.2L supercharged engine,
which will produce 580 horsepower (432 kW) and 556 lb-ft of torque (754 Nm),
with specific features for the Camaro.
The all-aluminum LSA supercharged
V-8 is part of GM's legendary small-block engine family. For a solid foundation,
the engine's lower end uses six-bolt main bearing caps that clamp and lock in
the forged steel crankshaft to the deep-skirt block. Its 1.9L Roots-style blower
uses an efficient four-lobe rotor set and compact intercooler to deliver boosted
air into the high-flow cylinder heads.
For the Camaro ZL1, the LSA
features a unique induction system, with a lower-restriction air filter, dual
inlet paths, and improved airflow through the supercharger housing. Other
changes include a higher-efficiency supercharger intercooler and electric power
steering system, which consumes less engine power than hydraulic-steering
Chevrolet claims that the 2012 Camaro ZL1 is a complete
high-performance car, not just a Camaro with more power.
Manual or Automatic Transmission
The ZL1 will be offered with either
a six-speed manual or automatic transmission. The Tremec TR-6060 "MG9" manual
features 30 percent more torque capacity than in the Camaro SS. The higher
torque capacity results from a strengthened output shaft, high-strength rear
housing, and additional roller bearing. The MG9 has also been tuned for improved
shift feel, with a dual-mass flywheel, twin-disc clutch, and triple synchros for
smooth, precise shifts.
Similarly, the Hydra-Matic 6L90 automatic has
been strengthened to handle the torque and horsepower produced by the 6.2L
supercharged small block. The 6L90 features a strengthened input gearset with
two additional pinion gears, additional clutch plate, and a strengthened output
shaft and gearset. To make the ZL1 perform equally well on street and track, the
6L90 features three distinct drive modes:
* Drive: The shift pattern is
calibrated for optimal fuel economy, including second-gear starts, while the
shift feel is tuned for a smooth driving experience. Engaging the tap-shift
feature on the steering wheel or shift lever engages temporary manual mode.
Sport: The shift pattern is calibrated for more aggressing driving, including
first-gear starts for maximum performance. The shift feel is also more
aggressive, with a performance algorithm that holds the transmission in lower
gears during aggressive driving.
* Manual: Here, the 6L90 offers the driver
true manual control, with no automatic up shifts, and staged upshifts for
incredibly fast shifts and maximum performance.
Camaro ZL1 to Feature
Magnetic Ride Control 3.0
The Camaro ZL1 will feature the
third-generation of Magnetic Ride Control (MRC).
MRC employs valve-less
damping and Magneto-Rheological (MR) fluid technology. MR fluid is a suspension
of iron particles in a synthetic fluid. When the system is activated, the
particles are magnetized and aligned into fibrous structures, changing flow
resistance. By controlling the current to an electromagnetic coil inside the
piston of the damper, the system varies the suspension firmness to match the
road and driving conditions.
For the third-generation, MRC uses new
twin-wire/dual-coil dampers at all four corners. The smaller dual-coil system -
with one coil at either end of the damper - replaces the larger single-core
design of the previous generation.
The new design allows even more precise control of
the electrical current (and magnetic flux), allowing greater range between the
softest setting for ride comfort and the firmest setting for track driving. The
new dual-coil design also enables faster response, with damping levels now
adjusted up to 1,000 times per second - about one adjustment per inch of vehicle
travel at 60 mph - making the system exceptionally responsive to changing
driving and road conditions.
There are three settings for MRC in the ZL1:
Tour, Sport, and Track.
Traction Management for the Race Course, and
the Drag Strip
The Camaro ZL1 will also offer Performance Traction
Management (PTM) as standard equipment, which is exclusive to General Motors.
First introduced on the Corvette ZR1, PTM is an advanced system that integrates
magnetic ride control, launch control, traction control and electronic stability
control, to enhance performance on the racetrack and drag strip.
example, the launch control feature (manual transmission only) automatically
modulates engine torque for the best possible acceleration without excessive
wheel spin. When the driver pushes the throttle to the floor, the system holds a
predetermined engine speed until the driver releases the clutch. Then, the
system modulates engine torque 100 times per second to maximize the available
traction. The system is capable of approaching a skilled driver's best effort
and repeats it consistently.
Similarly, on a road course, the driver can
apply full throttle when exiting a corner and PTM will automatically manage
acceleration dynamics to maximize exit speed based on available traction.
Five PTM performance levels or modes are available to accommodate the given
ambient and track conditions, driver experience/vehicle familiarity and driver
comfort levels. They include:
* Mode 1 - Traction control set for wet
conditions, with stability control on and Magnetic Ride Control set on Tour.
* Mode 2 - Traction control set for dry conditions, with stability control on
and Magnetic Ride Control set on Tour.
* Mode 3 - Traction control set on
Sport 1, with stability control on and Magnetic Ride Control set on Sport.
Mode 4 - Traction control set on Sport 2, with stability control off and
Magnetic Ride Control set on Sport.
* Mode 5 - Traction control set on Race,
with stability control off and Magnetic Ride Control set on Track. Launch
control tuned for VHT-prepped drag strips.
Chevrolet Camaro ZL1: Photo Gallery, Review (1/2) and Specifications