BALANCE OF AMPLE POWER AND ENVIRONMENTAL
PERFORMANCE
- MZR 2.3L DISI TURBO ENGINE -
The heart of every Mazda is its spirited powertrain. Under the
hood of the CX-7 is a version of the turbocharged and intercooled
2.3-liter four-cylinder direct-injection gasoline engine that powers
the highly regarded MAZDASPEED 6 sport sedan. Engineered to
deliver high performance at all speeds, along with low exhaust
emissions and excellent fuel economy, Mazda's MZR 2.3 DISI (Direct
Injection Spark Ignition) turbo -charged engine produce s an
enthusiastic 244 horsepower at 5, 000 rpm in the CX-7.
Key building blocks are aluminum block and head construction with
forged internal components — crankshaft and connecting rods —
for long-lasting durability. Balance shafts curb noise and
vibration. A large air-to-air intercooler and direct fuel injection
cool temperature inside the cylinder. Shifting gasoline's change in
state from liquid to vapor from the intake manifold to the cylinder
provides the substantial cooling effect. The low charge temperature
permits use of high compression ratio — 9.5:1 — which bo o sts
low- and mid-range torque by approximately 10-percent over
conventional turbo engines .
A notable change from the MAZDASPEED 6 engine is a new
turbocharger . The refined area of the turbine inlet port enhances
throttle response a t low rpm and diminishes boost lag. When the
driver nudges the throttle, acceleration is reminiscent of a much
large r displacement engine, one approaching twice the size of the
2.3-liter MZR engine, but without the extra weight that hampers
agility and the extra consumption that boosts emissions and
operating costs.
The M ZR 2.3 DISI turbo engine 's torque peaks at a low 2, 5 00
rpm when 258 lb-ft of torque is available. It is tuned so that
muscular feel begins at 2,000 rpm, and maintains at least 9 9
-percent of th e maximum torque all the way to 5,000 rpm, where peak
horsepower is delivered.
Low exhaust emissions are achieved by connecting the catalytic
converter directly to the turbocharger to shorten the time required
for the catalyst to become effective. The CX-7 targets stringent
federal Bin 5 and California LEV - II emissions standards.
DETERMINED DRIVE
Advanced transmission and drive components pass the engine's
power cleanly to the pavement. The six-speed Sport AT automatic
transmission provides the full manual control demanded by assertive
drivers. Shifts are crisp, in keeping with CX-7's sportscar
character.
Two drivelines are offered: Front-Wheel Drive or Mazda's Active
Torque-Split A ll- W heel D rive . The latter system uses a
computer-controlled coupling integrated with the rear differential
to deliver up to half the available torque to the rear wheels on
demand. Sensors monitor engine information, individual wheel speeds,
A nti-lock Brake System ( ABS ) operation, and the CX-7's standard
Dynamic Stability Control (DSC ) system to optimize torque
distribution. Whether the driving conditions are dry and fast or
slippery and moderately paced, exceptional handling is assured.
CRAFTY CHASSIS WITH MAZDA SPORTSCAR DNA
A light, stiff unibody provides the sound foundation for CX-7's
smooth ride and agile handling. Computer- A ided- E ngineering
analysis was used to optimize this structure, delivering high
torsional and bending rigidity with minimal weight.
In front, a perimeter frame mounted to the unibody through six
rubber isolators supports the powertrain, the engine-speed-sensitive
rack-and-pinion power steering and a low friction MacPherson strut
suspension system. The multilink rear suspension consists of one
trailing arm and two lateral locating members per side. To minimize
cargo-compartment intrusion, the rear spring is positioned between
the lower lateral member and the cross member that anchors rear
chassis hardware to the unibody. The damper is located between the
wheel hub and the unibody to provide excellent motion control with
minimal friction. Coil springs and anti-roll bars are an integral
part of both suspension systems. All-season P 235/60R18 tires
mounted on stylish aluminum wheels are standard.
CX-7's four-wheel ventilated disc brake system integrates the A
nti-lock Brake System (ABS), T raction C ontrol System (TCS), and
Dynamic Stability Control (DSC) functions. It also collaborates with
the Active Torque Split All-Wheel Drive to prevent wheel spin on
slippery surfaces.
BUILT-IN-SAFETY
CX-7's rigid unibody uses the Mazda Advanced Impact energy
Distribution and Absorption System to realize high levels of
collision safety and helps to protect occupants i n various accident
situations, including front, side and rear impacts . The body's
frame sections are large in size and as straight as possible,
high-strength steel is used where it's effective, and subframe
connections help absorb collision energy. Stamping the side frame
from a single tailored blank minimizes center pillar deformation
during a side impact.
The fuel tank is surrounded by substantial members to guard
against leakage in a major rear collision. Six air bags (frontal and
side for front occupants, side curtain for all outboard occupants)
are standard. A special sensor anticipates a roll-over and inflates
the side-curtain air bags early to guard against injury, maintaining
inflation for approximately six seconds helps keep limbs out of
harm's way. Front occupant restraints have pretensioner and
load-limiter mechanisms to maximize their effectiveness.
ENTERTAINING FEATURES
To delight, the Mazda CX-7 offers a wealth of entertainment gear.
The CX-7 offers AM, FM, and CD play capability as standard . Sirius
satellite radio is available as an option. To further support
driving pleasure and convenience, a touch-screen D VD -based n
avigation system with voice commands and a rear-view camera system
are available to select as an option . In addition, buyers may
choose a BOSE ® premium sound system package that includes n ine
speakers, approximately 240 watts of amplification, a six-CD changer
and CENTERPOINT ® surround-sound system that offers five-channel
digital imaging, to create a true premium audio entertainment.
Another convenient feature is the Mazda Advanced Keyless Entry
& Start S ystem. Without removing the card-shaped device from
one's pocket, doors can be unlocked and the engine can be started
(or stopped) . Also, the front-seat power windows can be operated
from outside the car, and the optional moonroof can be opened and
closed. To maximize security, a n automatic break-in alarm is
available as an option .
THREE EDITIONS – VARIATION FOR CUSTOMERS
CX-7 is offered in three trim levels. Some of the highlights of
the s tandard features are manual air conditioning, power windows,
power door locks, retractable key, cruise control, and six air bags.
Also standard on all CX-7s is an A nti-lock Brake System (ABS),
Dynamic Stability Control (DSC) and a Traction Control System (TCS).
The Touring edition adds leather trim (seats, steering wheel,
shift knob), power adjustment of the driver's seat, heated front
seats, and a retractable cargo cover. In top-line Grand Touring
trim, CX-7 is equipped with features such as leather with a black
sport seat stripe, high intensity discharge ( HID ) headlamps, fog
lamps, body-color mirrors, chrome door handles and automatic
interior climate control.
Mazda's CX-7 arrives in the North American market in the spring
of 2006 as a 2007 model.
Mazda North American Operations is responsible for the sales and
marketing, customer parts and service support of Mazda vehicles in
the United States. Headquartered in Irvine, Calif., MNAO has more
than 700 dealerships nationwide.