Acura?s largest engine is so powerful, it rivals many V-8s. This 3.7-liter, VTEC®
V-6 dishes up 300 horsepower and 270 lbs.-ft. of torque, while
operating with a smoother, more responsive feel, thanks to significant
weight reduction measures.
- Magnesium-alloy cylinder
head covers that use hardened aluminum cylinder sleeves help improve
vehicle balance and the power-to-weight ratio.
- A forged crankshaft results in lower weight and increased strength.
- A high-flow exhaust system increases the engine?s power efficiency.
- The
Drive-by-Wire™ throttle system adjusts throttle response so it can be
easy to modulate in slow speeds, yet extremely responsive when high
performance is called upon.
- EPA fuel mileage27
is 16 / 23 mpg (city/highway), which, combined with a 21-gallon fuel
capacity, gives the ZDX the potential for attaining a 400-mile or more
cruising range.
VTEC
Standard Feature
![VTEC]()
VTEC®,
which stands for Variable valve Timing and lift Electronic Control, is a
little like having an on-demand racing camshaft in your engine to give
you high rpm power without compromising low rpm torque.
- When
engine speed reaches a designated rpm, the intake valves open deeper
and longer to enhance airflow and allow the ZDX to continue to build
horsepower at levels where other engines may run out of steam.
- VTEC
works in tandem with the 2-stage manifold system to let the driver
enjoy both low-end power around town and abundant reserve power on the
open road.
Drive-by-Wire Throttle
Standard Feature
![Drive-by-Wire Throttle]()
Derived
from Acura?s racing program, the Drive-by-Wire™ throttle system is a
sophisticated electronic system that enables a smooth, powerful response
with just the right throttle sensitivity in every driving situation.
- The system replaces the usual cables and linkages between the accelerator pedal and engine throttle.
- It factors in data, such as engine rpm, coolant temperature and road speed from various sensors before adjusting the throttle.
- The system communicates with the transmission to enable quick, seamless gear changes.
High-Flow Exhaust System
Standard Feature
![High-Flow Exhaust System]()
The ZDX engine employs a high-flow exhaust system that greatly decreases power-robbing exhaust back pressure.
- The system uses a wider, low-restriction catalyst.
- A
sophisticated hydro-forming process smoothes the inside of the sharpest
bends in the exhaust system so the engine can breathe easier.
Battery Management System
Standard Feature
![Battery Management System]()
The
ZDX has a Battery Management System that can help prevent the
inconvenience of a dead or weak battery. The system initially warns you
through the MID screen when it detects the battery getting weak and will
shut down accessories if it detects the battery may soon be too weak to
start the engine.
Sequential SportShift Automatic
Standard Feature
![Sequential SportShift Automatic]()
The
2010 ZDX harnesses the power of its V-6 with a new 6-speed Sequential
SportShift automatic transmission that increases both performance and
fuel efficiency.
- Specialized logic features such as
Grade Logic, Shift Hold and Cornering G Shift Control keep the
transmission composed in situations that often trip up conventional
transmissions.
- The steering wheel-mounted paddle shifters deliver quick precise shifts at your fingertips.
- A
tap of the paddle shifter when ?D? is selected brings a quick gear
change before returning to automatic operation when the ZDX has resumed a
steady speed. This allows you to make manual gear changes when needed,
such as for passing, without changing in and out of manual mode.
- For
quicker acceleration, select ?S,? and the transmission allows the
engine to rev higher before shifting. Using a paddle shifter in ?S? puts
the transmission into full manual mode, where you have direct control
of all shifting.
- Hill Start Assist eases starts on
inclines. Sensing an uphill grade, the system holds brake pressure
momentarily while your foot moves from the brake pedal to the throttle
for a smooth, secure start.
Grade Logic, Shift Hold and Cornering G Shift Control Systems
Standard Feature
![Grade Logic, Shift Hold and Cornering G Shift Control Systems]()
When
the transmission is in automatic mode, three shift algorithms are
programmed to step in during certain circumstances to avoid the gear
hunting that?s common to conventional automatics.
- When
encountering a steep uphill or downhill grade, Grade Logic Control will
instruct the transmission to hold a lower gear for better climbing or
increased downhill engine braking.
- When aggressive
driving is detected, Shift Hold Control will delay upshifting as long as
possible to avoid disrupting the chassis or power delivery.
- When
the ZDX takes a curve, Cornering G Shift Control will delay upshifting
in order to avoid disturbing the chassis and requiring a second shift
change?a downshift?when the throttle is applied at the corner?s exit.
Super Handling All-Wheel Drive
Standard Feature
![Super Handling All-Wheel Drive]()
Though
it has the same all-weather attributes of conventional all-wheel drive,
Acura developed its revolutionary Super Handling All-Wheel Drive™
(SH-AWD®) system to enhance high-performance dry-road
handling. The result is enhanced high-performance cornering that simply
can't be matched by front, rear, or conventional all-wheel drive
systems.
- The system continuously determines the optimal
level of power distribution between the front and rear wheels, and also
between the rear wheels.
- Power distribution is based on an analysis of wheel speed, steering angle, lateral G-force and yaw rate.
- The
system reduces understeer and increases stability by turning the
outside rear wheel slightly faster than the rest of the wheels, rotating
the vehicle through the turn.
Power Distribution
Standard Feature
![Power Distribution]()
The Super Handling All-Wheel Drive™ (SH-AWD®)
system uses sensors to read an array of vehicle and road conditions and
uses this data to actively distribute power between the front and rear
axles and among the rear wheels. By continuously distributing power to
the wheels in greatest need, the ZDX handles conditions with impressive
poise and agility.
- Power distribution is based on an analysis of wheel speed, steering angle, lateral G-force and yaw rate.
- Torque
among the rear wheels is distributed by a pair of electromagnetic
clutches that can actively direct any combination of power between the
two rear wheels in fractions of a second.
- When cruising in a straight line, up to 90% of the power is sent to the front wheels for better fuel economy.
- To
accommodate shifting weight, up to 70% of effective power can be
transferred to the rear wheels during hard cornering?all of which can be
directed to the outside wheel if needed.
- The transitions are seamless, so all you feel is a supremely agile chassis.
Integrated Dynamics System
Advance Package
![Integrated Dynamics System]()
The
available Integrated Dynamics System (IDS) can adjust suspension
stiffness in a split second, based on driving conditions. This allows
the ZDX to remain comfortable during highway cruising, yet firm when the
road requires high-performance handling. In addition, the driver can
adjust the suspension and steering feel through the Sport and Comfort
settings.
- The dampers?also known as shock absorbers?are
filled with a fluid that significantly thickens in the presence of a
magnetic field. The stronger the field, the stiffer the damper.
- Each damper can adjust from soft to race-car stiff in as little as five milliseconds.
- The
Sport setting creates a firmer baseline for the dampers while they
continue to adjust according to conditions. Likewise, the setting
reduces overall power assist to the steering system for increased road
feel, though the assist continues to increase at lower speeds.
- The IDS is always on whenever the ignition is engaged.
Suspension Systems
Standard Feature
![Suspension Systems]()
The front strut and rear multi-link suspensions are designed to accommodate the Super Handling All-Wheel Drive™ (SH-AWD®)
system?s unique lateral and forward forces and provide the best balance
of handling precision, road isolation and bump-recovery damping.
- The MacPherson strut front suspension features forged-aluminum lower control arms to reduce unsprung weight.
- The whole front system is mounted to a subframe that ?floats? on rubber mounts to provide road and engine isolation.
- The front suspension uses fluid-filled bushings to provide superior ride isolation and chassis vibration control.
- Anti-dive properties keep the body stable during braking.
- The
rear features squeeze-cast aluminum uprights (or ?knuckles?) to reduce
unsprung weight for improved response, while trailing-arm mounts are
positioned to reduce suspension squat during acceleration.
- To further improve steering response, the rear system has been mounted on a separate steel subframe.
- IDS-equipped models receive revised overall suspension tuning and different rear stabilizer bars.
Steering System
Standard Feature
![Steering System]()
Because
steering is a key aspect of the driver-vehicle relationship, Acura
engineers spent considerable time raising the quality of the
rack-and-pinion steering feedback.
- The torque-sensing
power-assist system varies the level of effort at varying speeds so that
steering is firm at high speeds, yet easy and precise in the parking
lot.
- The steering system has been finessed to relay
the subtle steering feedback that drivers look for when negotiating
curves and other steering maneuvers.
- The Sport mode on IDS-equipped models reduces overall power assist levels for increased road feel.
Braking System
Standard Feature
![Braking System]()
The
brake system is engineered to provide best-in-class braking capability
in dry, wet and icy conditions. It is also tuned to provide the precise
modulation necessary for the utmost confidence during spirited driving.
- The ventilated front discs measure 13 inches in diameter and are gripped by dual-piston, cast-iron calipers.
- The solid rear discs are 13.2 inches with single-piston, cast-iron calipers.
- To satisfy the enthusiast driver, the brake pedal feel is firm with short brake pedal travel.
- The anti-lock braking system (ABS) pulses the brake pressure to a wheel if it detects potential lockup.
- Electronic
Brake Distribution (EBD) uses the ABS sensors to determine the
proportion of brake force to each wheel for increased performance and
stability.
- These and other systems, such as Vehicle Stability Assist™ (VSA®) and Brake Assist, are further detailed in the Safety and Security section.
Body Structure
Standard Feature
![Body Structure]()
A
rigid body structure is essential for a smooth ride, precise handling
and a quiet cabin. The ZDX achieves a high level of rigidity by using
strong, lightweight and more costly high-tensile steel in the body
structure. Key areas include:
- Roof arches
- Floor crossmembers
- Front rails
- Side body
- Tailgate opening, which is particularly vulnerable to flex
- Pounds
were also reduced by using aluminum in areas where less weight is
required and the strength of steel is not imperative, such as the hood
and instrument panel
Smooth & Quiet Ride
Standard Feature
![Smooth & Quiet Ride]()
Acura
first reduced noise vibration and harshness by attacking vibration in
the body during the engineering phase, rather than adding
sound-insulating materials to the body later.
- The rear suspension mounts are attached directly to the body for greater rigidity and reduced vibration.
- The
front and rear subframes are extremely stiff, allowing for softer
mounting bushings and a further reduction in noise and vibration.
- To
quell the ?drumming? noises common to vehicles with open cargo areas,
insulating materials were used in critical areas, including those on the
front bulkhead, the floor, side body, doors and roof.
- Windshield
noise is reduced as a result of three soft noise-absorbing layers
sandwiched between two plates of acoustic glass and thick, 5mm side and
rear glass.
- A unique carpet and padding system further reduces noise intrusion.