Acura releases preview image of the 2009 TL

One word: horrible. 

I wonder if the grill could be painted body color… or perhaps the best color for the entire car would be silver so that it would be less offensive…

Yes:

• it will be competent.


• it will have SH-AWD with the great torque-vectoring rear differential


• Acura has the best seats in the business.

But do you want this ugly thing parked in front of your house? Has Acura lost it’s mind?

Honda Legend/Acura RL AWD system

Jason Plato takes the Honda Legend (aka Acura RL) around a test track in a competitive run-off: http://www.youtube.com/watch?v=NYdbD9PIJJ8

Hopefully you’ve noticed that there is a revolution taking place in automotive all wheel drive (AWD) technology. It started a few years ago with Mitsubishi’s AYC – and actually well before that with intelligent center-diffs, feeding torque as needed front to rear and taking inputs from a variety of yaw and braking sensors. Take a look at the current all-out JDM Evo and you can see the high point of this technology (and we don’t even get all these good bits in the Evos sold in North America – yet). The upcoming Evo X takes this even further, tieing it into the steering and damper systems as well.

Honda has also entered the field with a very sophisticated AWD system – “Super Handling All-Wheel Drive” (SH-AWD). I’ve written about this before (see my index of prior posts), and it debuted in the Acura RL (worldwide known as the Honda Legend) 2 years ago.

The video is interesting, and makes some important points. The Legend, BTW, looses the racetrack comparison test – but only because it’s a softly sprung luxury car. We know from Acura’s own U.S. racing experience that the car can do considerably better when properly setup.

What’s really needed an an Acura TSX with this system, coupled to the new turbo engine (240 HP, 260 torque). I have no doubt that Acura is working on this, we know there will be a new TSX in a few years. And we know from the original introduction of SH-AWD two years ago that it wil be used in more Acuras. In fact, it’s already been introduced as standard equipment in the new 2007 RDX. And it was shown to the press for the first time two years ago in a TL. A TSX with this system would have makings of the best luxury-purposed AWD car in the business – certainly better than the comparitively unsophisticated Haldex-based MazdaSpeed6 ARD system (a system also used by Ford and Volvo: good in it’s time, but dated and simplistic these days).

There is of course a larger topic, one I’ll leave for some other time. And that’s the differences between FWD-based AWD systems (that is, an AWD car based ona car that was designed with front-wheel drive and a transverse engine) versus a car that is RWD-based (such as a G35X or Skyline GT-R). These two types of cars have inherently very different behaviors and advantages/disadvantages. Future topic.

Reference: Acura RL at Thunderhill 25-hour enduro race: http://www.DrivingEnthusiast.net/sec-blog/2006/01/12.html#a1175

What’s important about the Acura RDX?

Why the big RDX post?

The significance of the RDX is not just that it is a totally new chassis and engine – it’s the sheer magnitude, breadth, and depth of the work that went into this product. This all-new chassis will go under at least 5 products. The newly developed turbocharged engine will go into the next-gen TSX. The engineering and design methodology will go into all future products.

We don’t see that kind of magnitude, breadth, or depth at Ford. We do see Mazda- and Volvo-sourced chassis – reworked into a sort of “version 1.5″ of their forebears. All of the significant work on those chassis was done elsewhere in the international Ford system – well outside of North America. Both are a good chassis and a good basis for follow-on models – but again the work was done elsewhere. The staid styling, however, is all North American.

Can the upcoming 2008 Escape rework compete against the RDX? To be fair, they compete in two entirely different markets – the RDX is considerably more up-market (in a class of 2: BMW X3 and the RDX). However, keep in mind that the RDX chassis (without the turbocharged engine) will go directly to Honda for it’s own competitor to the Escape – the upcoming all-new CR-V. But the Escape is merely rework of the existing design – itself traced back loosely to a previous-gen Mazda 626 chassis. While the Escape will probably get the all-new 3.5 liter engine (unverified, and probably 6 months from becoming known), the rest of the vehicle is old. The AWD system isn’t anywhere near as advanced as is that of the RDX, and the chassis rigidity certainly won’t be either.

And that’s a shame, since when the Escape originally came out it defined it’s class and won handling and braking tests hands-down. The 2008, by contrast, will be merely an update and a placeholder until an all-new model can be built off the European Focus chassis sometime in the much longer timeframe. If that future model was about to be rolled out today (and it is, in up-market Land Rover form) it could also be used to create a position for Lincoln in this market. And that would also be a worthy alternative to the obese (but profitable) Navigator.

So, again, while Ford has done some excellent work in the past – this is yet another example of lack of follow-up and continuous improvement.

Reference: 2008 Ford Escape: http://www.edmunds.com/insideline/do/GeneralFuture/articleId=109656  and http://www.detnews.com/apps/pbcs.dll/article?AID=/20060419/AUTO03/604190322/1149 . Look closely and you’ll see that the entire roof is identical to the current models, as is the length and other dimensions. This is nothing more than a new body shell and other minor updates – considerably less than an “all new” model.

Very Significant RDX from Acura – Press Releases

While an SUV is normally not of any particular interest driving enthusiasts, today’s announcement does describe in detail significant engineering advancements which would be. The turbocharged engine would be especially useful as an update to the Honda S2000, as would the iVTEC and torque-proportioning rear differential technology.  It’s clear that Honda (Acura) put a very thorough engineering effort into this new vehicle… it shows they are still capable even though the North American Acuras are sliding in momentum.

Acura Press Release follows:

———————————

Turbocharged 2007 Acura RDX Blends Style, Luxury, Utility and Super Handling All-Wheel Drive(TM) (SH-AWD(TM)) in a Technologically Advanced Vehicle

RDX Features an All-New 2.3Liter Turbocharged Engine for Outstanding Performance with Fuel Economy

TORRANCE, Calif. 06/16/2006 – The sport-luxury SUV marketplace is in an exciting state of evolution. With the arrival of Acura’s new RDX 5-passenger Entry Premium SUV, this emerging market segment gets a decidedly “connected” spin. Not only does this all-new SUV combine the immediate response of Acura’s first-ever turbocharged engine and the agile control of Super Handling All-Wheel Drive(TM) (SH-AWD(TM)), the RDX puts state-of-the-art communications, navigation and audio entertainment at the driver’s fingertips. And the RDX delivers it all in keeping with Acura’s long-established tradition of respect for crisp, contemporary styling and simple, intuitive operation that adds to the driving experience.

“The all-new RDX is an exciting entry to the Acura light truck lineup for 2007″, said Dick Colliver, vice president sales, “The RDX’s innovative powertrain coupled with SH-AWD provides this SUV with excellent fuel economy and outstanding performance.”

The RDX is aimed at high-energy urbanites that spend the workweek in the confines of the city, and then decompress on the weekends by getting away from it all. Regardless of where they go, these drivers expect the ultimate in responsiveness, control and adaptability. In the RDX, they get it.

Built on a new global light truck platform, the RDX concept was initiated in California and then developed in Japan. Besides featuring precedent-setting engineering features including Acura’s first turbocharged and intercooled engine and the first adaptation of a SH-AWD(TM) system to an SUV, the RDX also offers Acura’s first standard 18-inch wheels and tires.

True to form for Acura, the RDX incorporates a class-leading array of sophisticated electronic technologies that are seamlessly integrated to keep its passengers informed, entertained and in touch. The RDX also introduces new safety technologies based on the fundamentals of Acura’s “Safety Through Innovation” initiative.

As Acura’s first Entry Premium SUV, the RDX was the focal point of the development of a special powertrain that would blend 4-cylinder efficiency and 6-cylinder power. The ideal solution came in the form of an innovative new Variable Flow Turbo (VFT) that delivers an unusually broad powerband with little or no lag in throttle response. The RDX is equipped with an all new 2.3-liter DOHC 16-valve in-line four-cylinder engine with i-VTEC valve control that combines Variable Valve Timing and Lift Electronic Control (VTEC) with Variable Timing Control (VTC). With the Variable Flow Turbo working in concert with i-VTEC, the RDX delivers strong power and torque, excellent fuel economy and very low emissions.

Rated output for the RDX engine is 240 horsepower SAE net* at 6000 rpm. In terms of torque, the RDX has the highest output of any engine in the Acura lineup, with 260 lbs.-ft. of torque SAE net* at 4500 rpm. The RDX is expected to return an EPA-estimated 19/24** City/Highway mileage, while meeting strict CARB LEV-2 ULEV and EPA Tier-2 Bin-5 emissions standards.

A 5-speed automatic transmission with Sequential SportShift is standard. The electronically controlled drive-by-wire throttle and transmission work together to execute shifts, resulting in exceptionally quick and smooth gear changes. The transmission can function as a conventional automatic transmission or, at the driver’s option, can be shifted manually via steering-wheel-mounted paddles.

SH-AWD(TM) is standard in the RDX to maximize available traction while improving handling balance and responsiveness. SH-AWD(TM) is Acura’s patented all-wheel drive system that distributes the optimum amount of torque not only between the front and rear axles but also between the left and right rear wheels.

The system’s direct yaw control helps reduce understeer to enhance steering accuracy and add to total cornering power. Responsive handling is further aided by fully independent front and rear suspensions.

The MacPherson strut front and trailing arm-type double wishbone rear systems are tuned for compliant control, and assisted with front and rear anti-roll bars for flatter cornering. Standard Vehicle Stability Assist (VSA(R)) with traction control further enhances controllability and grip.

The RDX exterior styling further emphasizes the SUV’s sporty athleticism. It has a taut, muscular presence with standard 18-inch wheels and tires that work together with large wheel arches, aggressively raked body sides, a steeply raked windscreen and a short rear overhang. A unique rear hatch, finished with a replaceable panel to reduce the cost of accident repair, allows the rear of the body to smoothly transition to the rear bumper. This permits a more custom look and also eases the act of loading and unloading cargo.

Inside the RDX, the front-seats feature a high “eye point” that provides a confident field of view. The 3-passenger rear seat has a 60/40 split-folding capability and, when folded flat, significantly expands the load area and increases the cargo volume to 60.6 cubic feet of storage. There are multiple interior storage compartments positioned throughout the interior, including a large (and lockable) dual-level center console located conveniently between the front seats that can securely accommodate a briefcase.

The RDX features an array of electronic features that set it apart from the competition. These include a dual-zone automatic climate control system, a Multi-Information Display (MID), and LED backlit gauges with progressive illumination. Also standard is an impressive 360-watt 7-speaker Acura Premium Sound System with a multi-format 6-disc changer, AM/FM tuner, XM(R) Satellite Radio, and the convenience of an MP3/auxiliary input jack for easily connecting audio devices such as an iPod.

Just one optional package is offered on the RDX. The Technology Package heightens the RDX’s appeal to technology-savvy customers with a range of advanced features. The centerpiece is a 10-speaker Acura/ELS Surround(TM) Premium Sound System designed by legendary recording engineer Elliott Scheiner. When playing DVD-Audio discs (DVD-A), this advanced 410-watt system delivers eight discreet audio channels (instead of the usual two) to create an uncannily accurate listening experience.

With its multi-format 6-disc DVD-A changer, AM/FM tuner and XM(R) Satellite Radio, the system is as versatile as it is powerful.

The Technology Package also includes several information and communications features such as HandsFreeLink(TM) and Acura Navigation system. HandsFreeLink is a wireless telephone interface that is designed to work with many Bluetooth-enabled mobile phones (sold separately).

In addition, the AcuraLink(TM) Satellite Communication System with Real Time Traffic allows for 2-way communication between Acura and the vehicle, providing customers with the latest information specific to their vehicle.

The Acura Navigation System with Voice Recognition(TM) can display up-to-the-minute traffic information including flow, accident, construction and weather conditions on freeways in 31 major metro areas (where available). When the transmission is placed in reverse, the Navigation screen displays the image from a rearview camera to make parking easier. In addition, the AcuraLink(TM) Satellite Communication System with Real Time Traffic allows for 2-way communication between Acura and the vehicle, providing customers with the latest information specific to their vehicle.

Technological leadership also extends to safety engineering. The RDX’s Advanced Compatibility Engineering(TM) (ACE(TM)) body structure substantially contributes to passenger safety. ACE(TM) distributes collision loads through the body structure, leaving the passenger cabin more intact for improved occupant protection. Specially designed frame members make the RDX more compatible with smaller vehicles in the event of a vehicle-to-vehicle frontal collision. Likewise, a specially engineered hood and other components help reduce the chances of pedestrian injury in the event of a collision with the vehicle.

Inside the RDX is a full complement of passive safety features. Key technologies include the latest generation of dual-stage, dual-threshold airbags for the driver and front passenger, plus side airbags for the driver and front passenger and side curtain airbags with a rollover sensor for all outboard occupants. Child-seat mounting systems, LATCH (Lower Anchors and Tethers for Children), allow the quick and secure installation of a child seats.

The RDX will be assembled at Honda of America’s factory in Marysville, Ohio, on the same line as the Acura TL sedan. It is the first Acura light truck to come from the facility.

Like all Acura models, the 2007 RDX is covered by a comprehensive 4-year/50,000 mile bumper-to-bumper limited warranty and a 6-year/70,000 miles powertrain limited warranty. Additional ownership benefits include Acura Total Luxury Care (TLC), which provides free 24-hour roadside assistance, concierge service and trip routing.

For more information about Acura vehicles, please visit www.acura.com. For media inquiries, please go to www.acuranews.com.

*All horsepower and torque specifications reflect revised SAE J1349 net calculations.
**Preliminary mileage estimates determined by Acura. Final EPA mileage estimates were not available at the time of printing. Use for comparison purposes only. Your mileage may vary.

Powertrain
Engine Type	Turbocharged 2.3-liter, 16-valve, DOHC i-VTEC(R) 4-cylinder
Horsepower, SAE net	240 hp at 6000 rpm
Torque, SAE net	260 lbs-ft at 4500 rpm
Redline	6800 rpm
Bore and Stroke	3.4 x 3.9 inches (86 x 99 mm)
Displacement	2300 cc
Compression Ratio	8.8:1
Induction System	Multi-Point Fuel Injection
Valvetrain	intelligent Variable Valve Timing and Lift Electronic Control (i-VTEC(R)), 4 valves per cylinder, chain-driven, DOHC
Engine Block	Die-cast lightweight aluminum alloy
Emission Certification	CARB LEV II ULEV and EPA Tier-2, Bin-5
Throttle	Drive-By-Wire Throttle System(TM)
Ignition System	Direct ignition system with knock control
Alternator	12V-105AH
Battery	12V-65AH
Recommended Fuel	Premium Unleaded
Layout	Transversely mounted, front-engine
Drivetrain	Super Handling All-Wheel Drive(TM) (SH-AWD(TM))
Transmission	5-speed automatic with F1(R)-style Sequential SportShift paddle shifters and Grade Logic Control
Ratios (:1)	1st	2.697
.	2nd	1.606
.	3rd	1.071
.	4th	0.766
.	5th	0.612
.	Reverse	1.889
.	Final	4.533
Chassis
Body Type	All-steel unit body
Front Suspension	MacPherson Strut
Rear Suspension	Independent multi-link
Shock Absorbers	Front and Rear Twin Tubes
Stabilizer Bars Front Rear	21 mm diameter 19 mm diameter
Steering Type	Torque-sensing variable power-assisted, rack-and-pinion
Steering Ratio	15.1:1
Steering Wheel Turns (lock to lock)	2.76
Turning Circle (curb to curb)	37.4 ft
Wheels	18 X 7.5 JJ cast alloy wheels
Tires	P235/55R18 99V high performance all-season
Braking System	4-wheel Anti-lock Braking System (ABS) with Electronic Brake Distribution (EBD) and Brake Assist
Front Discs	11.7 inch (297 mm) diameter ventilated (w/ dual piston caliper)
Rear Discs	12.0-inch (341 mm) diameter drum in disc
Stability Control	Vehicle Stability Assist (VSA) with Traction Control System (TCS)
Capacities
Cooling System	2.4 gallons/9.1 liters
Fuel tank	18.0 gallons/68.0 liters
Volumes	Passenger – 101.4 cubic ft
.	Cargo w/ rear seats up – 27.8 cubic ft
.	Cargo w/ rear seats down – 60.6 cubic ft
Engine Oil	Change w/ Filter- 4.62 quarts/4.4 liters
.	Total – 6.09 quarts/5.8 liters
Fuel Economy
EPA Fuel Mileage – City/Highway	19/24* mpg (City/Highway) *Preliminary mileage estimates determined by Acura. Final EPA mileage estimates were not available at the time of printing. Use for comparison purposes only. Your mileage may vary.
Exterior Dimensions
Wheelbase	104.3 in	(2650 mm)
Track, front	61.9 in	(1572 mm)
Track, rear	62.6 in	(1590 mm)
Overall Length	18037 in	(4590 mm)
Overall Width	73.6 in	(1869.4 mm)
Overall Height	65.2 in	(1656.1 mm)
Minimum Ground Clearance (1G)	6.25 in	(158.8 mm)
Approach/Departure Angle	.	Approach-28.0 degrees Departure-22.0 degrees Breakover-18.5 degrees
Weights
Curb Weight	3968 lbs (1800 kg)	W/ Technology Pacage – 3982 lbs (1800 kg)
Weight Distribution (% front/rear)	52/48
Towing
Maximum Towing Capacity	1500 lbs
Interior Dimensions
Front	Head Room	38.7 in	(982 mm)
.	Leg Room	41.8 in	(1062 mm)
.	Hip Room	54.4 in	(1383 mm)
.	Shoulder Room	58.2 in	(1479 mm)
2nd Row	Head Room	38.3 in	(972 mm)
.	Leg Room	37.6 in	(954 mm)
.	Hip Room	53.0 in	(1347 mm)
.	Shoulder Room	56.3 in	(1430 mm)
Warranty
Vehicle	4-year/ 50,000-mile limited warranty
Powertrain	6-year / 70,000-mile limited warranty
Outer Body Rust-Through	5-year / unlimited-mile limited warranty

 

Powertrain

Acura’s new RDX shares much in concept with the TSX. Though one is an SUV and the other is a sports sedan, both vehicles are designed to blend strong performance with agility and precise handling. Excellent fuel economy and low emissions are also top priorities. The unique positioning of this new Entry Premium SUV within the Acura product line guided the development of a special powertrain for the RDX. A conventional 4-cylinder engine would have lacked the horsepower and torque needed to make the RDX a strong performer. On the other hand, a 6-cylinder would add weight and have higher fuel consumption.

A perfect solution came in the form of a turbocharger – a first for an Acura production vehicle. The RDX has an innovative new variable flow turbo that overcomes the shortcomings of conventional turbo designs and delivers an unusually broad powerband with little or no lag in throttle response. In addition, Acura’s turbo design provides this benefit with high reliability. This is because airflow is controlled before it enters the turbocharger, rather than within the turbocharger as in traditional variable-flow designs. Acura’s variable flow turbo design thus eliminates moving components that work directly in the stream of hot exhaust gases.

Architecturally similar to the TSX’s 2.4-liter in-line four, the RDX applies an all-new 2.3-liter DOHC 16-valve in-line 4-cylinder engine. Like the TSX, the RDX uses i-VTEC valve control that combines Variable Valve Timing and Lift Electronic Control (VTEC) with Variable Timing Control (VTC). With the variable flow turbo working in unison with i-VTEC, the RDX delivers strong power and torque, excellent fuel economy and very low emissions.

Rated output for the engine is 240 horsepower @ 6000 rpm and 260 lbs.-ft. of torque @ 4500 rpm. That gives it the highest torque output of any engine in the Acura lineup. The RDX is preliminarily rated at an EPA-estimated 19/24* City/Highway mileage, which puts it ahead of some less powerful SUV competitors.

*Preliminary mileage estimates determined by Acura. Final EPA mileage estimates were not available at the time of printing. Use for comparison purposes only. Your mileage may vary.

 

2007 Acura RDX
Engine	DOHC i-VTEC Turbo I-4
Displacement	2300cc (2.3-liter)
Compression ratio	8.8:1
HorsepowerSAE net @ rpm	240 @ 6000
Torque SAE net @ rpm (lbs.-ft.)	260 @ 4500
Transmission	5-speed automatic
EPA estimated mileage City/Highway	19/24*
Emissions certification (CARB/EPA)	LEV II ULEV/Tier-2 Bin-5
Fuel type	Premium unleaded

 

 

Engine Performance Comparison
	2007 Acura RDX	2006 BMW X3 3.0i
Engine	2.3-liter DOHC I-4 Turbo	3.0-liter DOHC I-6
Horsepower @ rpm	240 SAE net @ 6000	225 @ 5900
Torque @ rpm (lbs.-ft.)	260 SAE net @ 4500	214 @ 3500
Transmission	5-speed automatic	5-speed automatic
EPA estimated mileage City/ Highway	19/24*	16/23

*Preliminary mileage estimates determined by Acura. Final EPA mileage estimates were not available at the time of printing. Use for comparison purposes only. Your mileage may vary.

With its rear-mounted exhaust manifold feeding directly into the turbocharger and the use of a close-coupled catalytic converter, the RDX uses its advanced Programmed Fuel Injection (PGM-FI) to meet strict CARB LEV II ULEV and EPA Tier-2 Bin-5 standards.

The RDX’s 5-speed automatic with Sequential SportShift can function as a conventional automatic transmission or, at the driver’s option, be shifted manually via steering-wheel-mounted paddles. The electronically controlled Drive-by-Wire Throttle System(TM) and automatic transmission work together to execute shifts, resulting in exceptionally quick and smooth gear changes.

To maximize available traction with handling balance and responsiveness, the RDX comes standard with Super Handling All-Wheel Drive(TM) (SH-AWD(TM)). This all-wheel-drive system progressively distributes the optimum amount of torque not only between the front and rear axles but also between the left and right rear wheels. The system’s direct yaw control helps reduce understeer, improve steering accuracy and total cornering power.

Powertrain At A Glance

Engine

• Turbocharged and intercooled 2.3-liter inline-four engine, 16-valve DOHC i-VTEC(R)
• 240 horsepower SAE net at 6000 rpm
• 260 lbs.-ft. of torque SAE net at 4500 rpm
• i-VTEC(R) variable valve timing system
• Variable flow turbo
• Air-to-air intercooler
• Mobil 1(R) synthetic oil and oil-life monitoring system
• Drive-by-Wire Throttle System(TM)
• Direct ignition system

Transmission and Drive System

• Super Handling All-Wheel Drive(TM) (SH-AWD(TM))
• Quick-response 5-speed automatic transmission with F1(R)-style Sequential SportShift Paddle Shifters
• Advanced Shift-hold Control and Grade Logic Control
• Torque converter tuned to match turbo power characteristics
• Specially tuned lockup clutch damper
• Transmission fluid cooler

Noise, Vibration, and Harshness

• Dual chain-driven balance shafts mounted in oil pan
• Maintenance-free silent-chain camshaft drive
• Aluminum block with cast-in iron liners for light weight and durability
• Block and 1-piece aluminum crankshaft carrier for improved strength
• Maintenance-free serpentine accessory drive with auto tensioner

Emissions/Fuel Economy

• Estimated mileage of 19/24* mpg City/Highway
• Meets strict CARB LEV II ULEV and EPA Tier-2 Bin-5 standards
• Rear-facing exhaust ports, aluminum exhaust manifold and close-coupled converter provide fast catalytic converter light-off
• Jet-pump purge system captures evaporative emissions from the fuel tank, directing them into the intake system for proper burn-off

*Preliminary mileage estimates determined by Acura. Final EPA mileage estimates were not available at the time of printing. Use for comparison purposes only. Your mileage may vary.

Crankshaft, Engine Block And Oil Pan

The RDX utilizes a newly developed turbocharged engine. The die-cast lightweight aluminum block has cast-in iron cylinder liners with 86mm bores. The block is a 2-piece design that fully supports the five main bearings with a single cast-alloy bed-plate assembly to maximize the rigidity and minimize noise and vibration. For even greater rigidity, the oil pan is a stiff aluminum alloy die casting.

To handle the 20% increase in horsepower and a 60% increase in torque output due to turbocharging, there are strengthening measures throughout the engine. The block has been reinforced, and additional structural reinforcements stiffen the engine’s mating surface with the transmission.

The RDX uses a forged-steel crankshaft with a long 99mm stroke. To reduce friction and improve durability, the crankshaft journals are micropolished. Special forged connecting rods are engineered for the engine’s high power output. The RDX has special alloy pistons with thick crowns and super hard Ni-P plating in the piston ring grooves to provide a long-wearing surface with extra heat resistance. A high-capacity oil pump supplies oil jets directed at the underside of the piston crowns to help dissipate heat.

Cylinder Head / Valvetrain

The RDX cylinder head is a low-pressure aluminum alloy casting and features four valves per cylinder driven by dual overhead cams. Due to turbocharging, the compression ratio is set at 8.8:1 and Premium Unleaded fuel is required for best resistance to detonation. Valve sizes are 35mm intake and 30mm exhaust, as in the TSX. An automatically adjusted silent-type cam chain is maintenance free and runs in an oil bath for maximum durability. For better cooling, the RDX has small-diameter 12mm spark plugs (the TSX has 14mm plugs) with a long 26.5mm reach (the TSX has 20.5mm reach plugs). The added reach allows the cylinder-head coolant jacket to be larger, with more coolant volume for better cooling and detonation resistance.

i-VTEC(R)

The RDX engine features i-VTEC, which adds Variable Timing Control (VTC) to Variable Valve Timing and Lift Electronic Control (VTEC) to provide optimal camshaft phasing. By allowing the valve lift and valve timing to be adjusted to suit the engine’s operating parameters from moment to moment, i-VTEC provides substantial performance, efficiency and emissions improvements.

Variable Valve Timing and Lift Electronic Control

VTEC adjusts the lift and opening duration of the valves to help the engine produce stronger low-rpm torque and excellent high-rpm power. At low rpm, the timing of the two intake valves is staggered and their lift is asymmetric within each cylinder; this creates a swirl effect within the combustion chambers. With better mixing in the cylinders, burn speed and combustion stability are improved. As engine rpm builds, VTEC transitions to a high-lift, long-duration cam profile for improved high-rpm engine output.

The RDX VTEC system varies the opening lift and duration of an intake valve. At low rpm, one valve follows a low-lift, short-duration camshaft profile, while the other follows a high-lift, long-duration cam profile to help boost low-end torque. Above a variable crossover point of 2000-2200 rpm (based on conditions – 2200 rpm during acceleration, 2000 rpm during deceleration), the low-lift, short duration intake valve switches to the same high-lift, long-duration cam profile of the other intake valve, for maximum high rpm horsepower.

Variable Timing Control

The i-VTEC system incorporates VTC, which continuously adjusts the intake cam timing to suit engine operating conditions. This precise control of cam timing improves power output, fuel economy and emissions performance.

A powertrain control unit monitors camshaft position, ignition timing, exhaust oxygen content and throttle position, then commands a VTC actuator to advance or retard the intake cam, optimizing engine output and reducing emissions. At idle, the intake cam is retarded to deliver a stable idle and reduce nitrogen oxides (NOx) emissions. The intake cam is progressively advanced as rpm builds, so the intake valves open sooner and valve overlap increases. This reduces pumping losses, which increases fuel economy and further reduces exhaust emissions due to the creation of an internal exhaust gas recirculation effect. By continuously optimizing the amount of intake cam advance based on the operating conditions, the RDX engine develops high peak power without compromising running manners at a full range of other operating speeds.

Drive-By-Wire Throttle System(TM)

Smart electronics connect the RDX throttle pedal to the throttle butterfly in the intake tract, optimizing engine response to suit driving conditions. The adjustable “gain” between throttle pedal and engine offers a significant step forward in drivability.

The Drive-by-Wire Throttle System(TM) establishes the current driving conditions by monitoring throttle pedal position, throttle butterfly position, road speed, and engine speed. This information is used to define the throttle control sensitivity. This gives the RDX throttle pedal a predictable and responsive feel that meets drivers’ expectations.

Variable Flow Turbo

A variable flow turbo is the key element that allows the RDX’s 4-cylinder engine to perform like a larger-displacement 6-cylinder engine, while still returning small-displacement fuel economy and very low emissions.

One of the challenges of turbocharging is the difficulty in sizing the turbo for optimal performance at all engine speeds. A small turbo spins up quicker, reducing lag (the delay between throttle-pedal movement and a substantial increase in boost pressure), but doesn’t have enough flow for the best high engine-rpm performance. Conversely, a large turbo takes longer to spin up, but delivers maximum high rpm performance.

The new Acura variable flow turbo is designed to combine the best qualities of both small and large turbos, while avoiding their respective downsides or introducing any reliability concerns. The variable flow turbo increases exhaust gas velocity into the turbo housing at low speeds by restricting the inlet area with a movable valve, enabling the impeller to speed up quicker. At higher engine speed where exhaust gas flow is abundant, the valve opens progressively to maintain optimum exhaust gas flow into both the inner and outer scroll of the turbo housing, and to prevent choking.

Both the movable flow control valve and the wastegate that limits maximum boost pressure are powered by diaphragm-type actuators that are controlled by electric solenoids, which are in turn controlled by the engine’s Electronic Control Unit (ECU). Under full-throttle operation, the flow control valve typically begins to open at 2000 rpm, and is fully open by 2500 rpm. Flow control valve position is determined by exhaust gas flow and not directly by engine rpm. Maximum boost pressure, which is dependent on temperature, altitude and other factors, is 13.5 pounds per square inch (700mm Hg).

Acura’s variable flow turbo is designed for maximum durability. Unlike competitor variable-vane turbo designs that put the pivot point of moving parts in very high-temperature areas of the turbo housing, the Acura variable flow turbo has fewer moving parts inside the hot turbo housing, and is designed to shield the vane pivot from the highest temperatures.

RDX’s turbocharger is positioned to the rear of the engine, close to the exhaust ports for maximum transfer of the exhaust velocity to the turbo. Water passages in the aluminum exhaust manifold help keep the temperature in the exhaust system at optimum levels for both the turbocharger and catalytic converter. The turbo housing is made of austenite stainless cast iron for durability when exposed to high-temperature exhaust gases.

When the engine is shut off, coolant continues to circulate due to thermal convection, helping to prevent long-term heat-related damage to the turbo bearings.

Engineering Features

• Turbocharged and intercooled 2.3-liter, 240 hp, 16-valve, DOHC i-VTEC(R), 4-cylinder engine
• i-VTEC(TM) – intelligent Variable Valve Timing and Lift Electronic Control
• CARB LEV II ULEV / EPA Tier-2, Bin-5 Emission Certification
• 5-speed automatic transmission with F1(R)-style Sequential SportShift Paddle Shifters and Grade Logic Control
• Super Handling All-Wheel Drive(TM) (SH-AWD(TM))
• Drive-by-Wire Throttle System(TM)
• MacPherson Strut front suspension
• Multi-link independent rear suspension
• Torque-sensing, variable power-assist rack-and-pinion steering
• 4-wheel Anti-lock Braking System (ABS)
• Electronic Brake Distribution (EBD)
• Brake Assist
• 18-inch alloy wheels with P235/55VR18 high performance All-Season tires

Safety and Security Features

• Dual-stage, dual-threshold front air bags (SRS)
• Front side airbags with passenger position and height sensors
• Side curtain airbags with rollover sensor
• 4-wheel anti-lock braking system (ABS) with Electronic Brake Distribution (EBD) and Brake Assist
• Vehicle Stability Assist (VSA) with Traction Control System (TCS)
• Tire Pressure Monitoring System (TPMS)
• High-Intensity Discharge (HID) headlights
• Fog lights
• Daytime Running Lights (DRL)
• Active front head restraints
• Advanced Compatibility Engineering (TM) (ACE(TM)) body structure
• Impact-absorbing crumple zones (front and rear)
• Theft-deterrent system with electronic immobilizer
• Rear-window defroster with timer
• Side-impact door beams
• Emergency tailgate opener
• Mirror-integrated LED directional signals
• 3-point heigh-adjustable seat belts with load limiters and pre-tensioners (front)
• 3-point seat belts (rear)
• Breakaway inside rearview mirror
• LATCH (Lower Anchors and Tethers for Children) child-seat mounting system
• 276-degree all-around visibility

Exterior Features

• Power moonroof with tilt, auto-open/close, auto-reverse and key-off operation
• Heated outside mirrors with passenger reverse gear tilt-down and integrated directional signals
• 18 X 7.5 inch cast aluminum-alloy wheels
• Auto-off headlights
• Body-colored tailgate spoiler
• Chrome door handles
• Rear privacy glass
• Speed-sensing, variable intermittent windshield wipers
• Intermittent rear-window wiper
• Dual-outlet exhaust

Interior Features

Seating and Trim

• Sport seats with perforated leather-trimmed interior
• 8-way power driver’s seat w/ power lumbar support
• Heated front seats
• Lockable front center console with dual-level storage, coin, card and pen holders
• Rear seat armrest
• 60/40 split folding rear seat
• Leather-wrapped steering wheel

Comfort and Convenience

• Dual-zone automatic climate control with micron air filtration
• Cruise control
• Power windows with driver and front passenger’s auto-up/down, auto-reverse and key-off operation
• Remote entry ssytem
• Homelink(R) programmable transmitter
• Tilt and telescoping steering column
• Steering wheel-mounted controls (cruise control and audio)
• Overhead map lights
• Ambient cabin lighting
• Cargo area lighting
• Beverage holders (front and rear)
• Front-door utility boxes
• Seatback pockets
• Aluminum threshold garnish
• Reversible hard cargo lid
• Carpeted floor mats
• Driver’s and passenger’s illuminated vanity mirrors
• 12-volt power outlets (front and center console)
• 360-watt Acura Premium Sound System with AM/FM tuner, 6-disc in-dash CD, MP3, WMA, and 7 speakers
• XM(R) Satellite radio
• MP3/auxiliary input jack
• i-VTEC(R) turbo boost meter
• Maintenance Minder system
• Multi-information display (MID)
• Exterior temperature indicator
• Illuminated ignition, power-window and door-lock switches, steering wheel controls and overhead controls
• LED backlit gauges with progressive illumination
• Center information display screen

Optional Technology Package

• Acura Navigation System with Voice Recognition(TM) and rearview camera
• AcuraLink(TM) satellite communication system with real-time traffic
• HandsFreeLink(TM) wireless telephone interface
• 410-watt Acura/ELS Surround(TM) Premium 10-speaker Sound System with 6-disc CD, DVD-Audio, DTS(R) and Dolby(R) Pro Logic(R) II
• Sub-display with clock, audio and HVAC information
• GPS-linked, solar-sensing, dual-zone automatic climate control sytem
• Auxilary information display
• Acura personalized settings

Body & ChassisOverview

The RDX is a fusion of SUV functionality and sports sedan handling. Together in one package, these qualities create Acura’s first urban adventure crossover vehicle – the perfect compliment to a fast-paced urban lifestyle.

The RDX’s crossover body styling simultaneously supports several agendas. First, its lines have a taut, muscular presence that promises energetic driving performance. But this performance edge doesn’t come at the cost of functionality, as evidenced by the versatile 5-door exterior format and generous interior storage space. Overall, the RDX has an urban-friendly size that’s both maneuverable and personal. Finally, while satisfying stylistic goals, the RDX is designed to provide a high level of crash safety performance.

Design Concept

To suit the dynamic (and sometimes hectic) urban setting, the RDX wears what its designers call “athletic armor,” a design approach that suggests the powerful image of a football running back, outfitted in protective gear. The look is muscular, taut, and poised for acceleration and agile split-second maneuvering.

Starting with the front end, the signature Acura grille has an aggressive flair with a sharply creased leading edge. This first theme in the body form decisively sets the tone for the rest of the design, which follows with a long 104.3-inch wheelbase and wide track (61.9-in. front, 62.6-in. rear). Elegant and decisive style lines run the length of the body, with muscular wheel arches and short overhangs further adding to a poised, powerful look.

In exterior dimensions the RDX is most similar to the BMW X3.

	2007 Acura RDX	2006 BMW X3
Overall length, in.	180.7	179.7
Overall width, in.(excludes mirrors)	73.6	73.0
Overall height, in.	65.2	66.0
Wheelbase, in.	61.9/62.6	60.0/60.7
Turning diameter, ft.	37.4	38.4
Curb weight, lbs.	3,982*	4,067 (AT)
Tire size	P235/55VR18	P235/55HR17

*pending mass production startup

Form Follows Function

The overall size of the RDX matches the needs of the urban commuter. Key functional points for the RDX include a low hood line that improves forward visibility. A high eye point for the driver and front passenger further improve outward visibility and add to a sense of confidence and control. New “skin-mount” exterior mirrors have specially designed compact housings that improve the A-pillar area visibility, providing good outward visibility for urban intersections. And finally, the excellent approach and departure angles pay dividends when approaching or leaving steep driveways, or parking garages.

RDX Design Elements include:

• Dynamic urban style
• “Athletic armor”
• Sharp body lines
• Standard 18-inch wheels and tires
• Tailgate surface flush with bumper

Aerodynamic Efficiency

The RDX marries aggressive styling with function. The windswept front fascia features a main opening that feeds the aluminum engine radiator. The top inlet, located above the bright Acura badge, is a separate cold-air inlet for the large aluminum turbocharger intercooler, which is horizontally mounted above the engine. This fully functional inlet takes in ambient-temperature air as the RDX moves forward, routing it through a duct in the hood and then down through the intercooler. A separate cool-air intake leads to a large-volume intake airbox and high-volume cartridge air filter.
Additional details that contribute to the RDX’s aerodynamic efficiency include a spoiler above the tailgate, which helps air separate cleanly off the body at speed, strakes located in front of the rear tires, and the streamlined “skin-mount” mirrors.

Key Styling Features

High-intensity discharge (HID) low beam headlights command the front corners of the fascia and fenders. Their design compliments the angular and elegant pattern set by the trademark Acura grille. Fog lamps are standard as well.

Both front and rear wheel arches are bold and broad, further adding to the dramatic appearance of the standard 18-inch aluminum alloy wheels, the first application for an Acura. The RDX’s beltline rises visibly from the sharply raked A pillar back to the substantial C and D pillars.

Door dimensions were selected to enhance the RDX’s primary mission as a driver’s vehicle while retaining high usability for children or adult passengers in back. The front doors have long proportions for easy ingress and egress, while the rear doors are shorter.

Key Styling Features

High-intensity discharge (HID) low beam headlights command the front corners of the fascia and fenders. Their design compliments the angular and elegant pattern set by the trademark Acura grille. Fog lamps are standard as well.

Both front and rear wheel arches are bold and broad, further adding to the dramatic appearance of the standard 18-inch aluminum alloy wheels, the first application for an Acura. The RDX’s beltline rises visibly from the sharply raked A pillar back to the substantial C and D pillars.

Door dimensions were selected to enhance the RDX’s primary mission as a driver’s vehicle while retaining high usability for children or adult passengers in back. The front doors have long proportions for easy ingress and egress, while the rear doors are shorter.

Tailgate Trim

In styling the rear portion of the RDX body, Acura designers introduced a unique new design element. Instead of a conventional rear tailgate panel positioned above a large protruding bumper, the RDX tailgate panel drops cleanly downward and terminates smoothly at the trailing edge of the body. This creates a custom look for the rear of the body.

For accident reparability, the rear tailgate uses a replaceable resin lower panel that has a far lower replacement cost than an entire conventional metal tailgate. Without a thick bumper to reach over, loading and unloading cargo in the RDX is also easier. The tailgate design is another way the RDX creatively balances style, safety and convenience.

Hid Headlights

A powerful combination of HID low-beam and halogen high-beam headlights provides lighting firepower for the RDX. Contained within aerodynamic headlight units, the inner lens of the HID unit glitters, making the headlights more distinctive. The RDX also features Daytime Running Lights (DRL), which enhance its visibility to other drivers and can help reduce accidents during daytime driving.

Body Protection

Designed for arduous driving conditions, the lower door panels of the RDX incorporate a wide molding to help protect the lower body sides from chipping. This molding extends down past the body side sills, ensuring that the sills stay clean to avoid soiling clothing when passengers enter and exit the vehicle.

Construction

A rigid structure enables designers to maintain tight body-panel fit tolerances, tune the suspension for precise ride and handling, keep the ride squeak- and rattle-free, provide long-term durability and high levels of crash protection for the occupants. The widespread use of high-tensile steel enables the RDX to meet all of these challenges.

Polygonal-shaped frame members, which are computer designed to disperse and absorb forces in a collision, are located behind the front bumper beam. These high-strength steel frame members send collision forces upward and rearward where they can be absorbed by the main structure. In the event of a rear collision, polygonal-shaped high-tensile steel frame members direct the loads forward and outward. These rear frame members also use a “wave shape” design, which provides high strength, yet deforms controllably in a collision. In a side impact, large longitudinal high-tensile steel side sills extending front to rear underneath the vehicle, along with lateral high tensile steel cross members, absorb energy.

For greater steering precision and handling stability, RDX designers paid particular attention to improving body rigidity around the front and rear suspension. These reinforcements are comprised of side-to-side bracing behind and above the firewall and inside the tailgate area.

High-Tensile Steel

The use of varying grades of steel in the unit body is key to its stiffness, performance in a collision, and light weight. HSS780 grade steel is used in the “box” section of the front, side, and rear frame members at the bottom of the body. Additional high tensile steel (HSS780 and 590) is used in other areas under the floor, and in the A and B pillars and roof rails. By utilizing high strength steel (39% by weight) the RDX exceeds the BMW X3′s torsional rigidity while keeping vehicle weight under control.

Exterior Detail

Specially designed wiper arms with flat blades ensure that the driver cannot see the stowed wipers from inside the vehicle. The hidden design also reduces wind noise and adds to the RDX’s clean lines. Even the washer nozzles are located underneath the trailing edge of the hood, improving both their performance at high speeds and the exterior look of the vehicle. Elimination of rear quarter glass panels in the doors gives RDX a cleaner appearance, with large 1-piece side windows that provide a more wide-open feeling.

Tailgate

Designers spent a significant amount of time with the RDX’s target audience in order to understand how they use their vehicles. One of the messages designers heard was that a high degree of functionality is essential. As a result, the RDX’s thoughtful design is evident even in small details, like the tailgate hinges that are hidden at the top rear edge of the roof. This makes the body lines smoother, while allowing for a higher tailgate opening.

The RDX’s clean exterior look is further enhanced by the use of an electronic tailgate switch, which replaces a traditional outside handle. Touching the switch releases the tailgate, which can then be easily lifted open thanks to the counterbalancing effect of the gas-filled struts, tuned to suit the forward hinge positioning.

Noise, Vibration And Harshness

The city is a challenging environment and a great test of a vehicle’s NVH. Varied street surfaces, construction zones, potholes and other navigational hazards mean the body structure – together with tire and suspension tuning – has to address a wide range of NVH issues.

Engineering rigid front and rear suspension mounting points was key to achieving a low NHV character in the RDX. The low road noise allows easy conversation between the driver and all seats. Internal Acura tests measured the RDX at 71 decibels during city driving speeds, similar to other luxury vehicles.

Power Windows

Front power windows with auto-reverse are standard. The RDX’s front power windows also incorporate a 1-touch auto up/down feature for convenience. Window operation is retained for 10 minutes after the ignition is turned off, until the front doors are opened. Tinted glass reduces eyestrain and the sun load on the inside of the vehicle.

Power Door Locks And Remote Keyless Entry

For owner convenience, the RDX has standard power door locks and remote keyless entry. A retractable ignition key is built into the transmitter fob, and can be folded for easier carrying.

Power Moonroof

The large power moonroof with auto-reverse can be opened or closed with one touch of the ceiling-mounted switch. A timer allows it to be operated for 10 minutes after the ignition is shut off, unless the doors are opened first. The moonroof’s flush-fitting glass panel reduces turbulence and wind noise, and an inside sliding shade is provided to block the sun.

Exterior Mirrors

A sleek “skin-mount” mirror design that maximizes the mirror area while minimizing the size of the mirror housing provides good outward visibility in the A-pillar area. Both the driver and passenger-side mirrors are heated, and the passenger-side mirror has a reverse auto-tilt (five degrees) feature.

Paint Colors

The 2007 Acura RDX is available in a choice of seven pearl and metallic colors. All are topped with deep-looking durable clear-coat finishes that resist scratching and urban pollutants.

Exterior Color	Paint Type	Interior Color
White Diamond Pearl	Pearl	Ebony	Taupe
Carbon Gray Pearl	Pearl	Ebony	Taupe
Alabaster Silver Metallic	Metallic	Ebony	Taupe
Royal Blue Pearl	Pearl	Ebony	Taupe
Moroccan Red Pearl	Pearl	Ebony	Taupe
Nighthawk Black Pearl	Pearl	Ebony	Taupe
Carbon Bronze Pearl	Pearl	Ebony	Taupe

 

Chassis

A challenging and varied urban driving landscape steered development of the RDX chassis. In an urban driving environment, the ability to accelerate, turn and brake quickly – with stability and control – are essential capabilities. But the RDX was also designed to excel on wide-open highways, sweeping mountain roads, and long stretches of Interstate.

The design goal for the RDX chassis was to provide the sporty handling of the Acura TSX sports sedan with the versatility of an SUV. These difficult goals for dynamic performance were not easy to achieve because the RDX needed to provide a high eye-point (seating position) to provide the driver and passengers better visibility in urban traffic conditions. And the higher the center of gravity a vehicle has, the more difficult it is to provide responsive and nimble handling like a sports sedan.

Acura designers answered this challenge by giving the RDX a low center of gravity, SH-AWD(TM) for superb cornering capability (see Tab 2 – Powertrain), and overall chassis specifications rivaling those of a sports sedan. The result is an especially confident experience when changing lanes or cornering.

Acura RDX Chassis Goals includes:

• Responsive steering
• “Sports AWD” ride and handling
• High dynamic performance
• Low Noise, Vibration and Harshness (NVH)

Best-In-Class Cornering

The RDX achieves its mission to provide sports sedan handling, and one-ups its rivals. When tested on the skid pad, Acura internal measurements show the RDX achieves a maximum cornering force of 0.85g. This exceeds the cornering performance of the BMW X3 in the same test conditions.

Much of the credit for the RDX’s cornering performance goes to the SH-AWD(TM) system (see Tab 2 – Powertrain). As a result, the RDX provides sharp steering through intersections, direct and linear response on winding roads, and high speed stability on highway.

Suspension

Engineers wanted to create a vehicle that transcended the traditional SUV driving experience. So rather than target SUV driving characteristics, they benchmarked the dynamic characteristics of the Acura TSX. As a result, the RDX is at the top of its class for acceleration, turning and stopping, while delivering excellent ride quality. The SH-AWD(TM) system plays an important part in this, but so does the 4-wheel independent suspension, which provides crisp, confident handling in the city and stable, reassuring handling on the highway.

Front Suspension

The RDX front suspension is a specially designed and tuned MacPherson strut arrangement with compact packaging, supple ride comfort and the long wheel travel and ruggedness necessary to meet harsh urban roads. The geometry has been optimized with both a high caster angle and “trail,” to provide sharp on-center response and stability.

Additional specifics of the front suspension that help to achieve sports sedan-like handling include:

• High-friction upper strut mount provides a good on-center steering feel, along with increased linearity while reducing steering shimmy
• Asymmetrical coil springs improve steering quality
• Large-diameter lower arm compliance bushing reduces NVH
• Optimized kingpin layout enhances steering feel and linearity
• Large-diameter steering gearbox with rigid bushings adds stiffness and improves linear steer feel
• 21mm front stabilizer bar helps control body roll for flatter cornering

 

Rear Suspension

A independent multi-link rear suspension system with aluminum knuckle fits compactly underneath the rear seating and storage areas while providing excellent ride and handling characteristics, with low NVH. The suspension uses large-diameter trailing arm bushings to reduce harshness and improve ride comfort. A special steel suspension subframe with large “floating” bushings markedly reduces NVH while maintaining stability. Front and rear stays increase the subframe mounting point rigidity, improving stability and steer feel.

Rear suspension features:

Anti-squat geometry to reduce pitching under acceleration

• 19mm rear stabilizer bar contributes to flatter cornering

 

Steering

The Acura RDX has quick-ratio (15.1:1) power rack-and-pinion steering for steering response like that of a sports sedan. The hydraulically assisted steering is engine-speed sensing, for easy maneuvering at low speeds and maximum feel and driving enjoyment at higher speeds. The turning diameter is 37.4 feet.

To improve steering precision, a stay (or stiffener) supports each end of the steering rack, further improving steering rigidity. In addition, the rack-and-pinion gearbox has aluminum mounting brackets. When a severe crash occurs these aluminum brackets are designed to break off when the engine is pushed rearward into the rack-and-pinion gearbox. This helps reduce intrusion into the interior.

Wheels & Tires

The 2007 RDX is the first Acura with standard 18-inch alloy wheels and tires, with a 19-inch wheel and tire optional. RDX comes with 18×7-1/2 JJ aluminum alloy wheels paired with P235/55R18 99V Michelin M+S high-performance all-season tires. These high-performance all-season tires are exclusively designed for the RDX, and have optimized sidewall rigidity that maintains vehicle stability in all load conditions. The low-profile tires also provide top class traction and braking in all weather conditions.

4-Wheel Disc Brakes

RDX features 4-wheel disc brakes, 11.7-inch diameter in front and 12.0-inch diameter in the rear. Besides providing highly fade-resistant performance, the RDX brake system has a firm pedal feel with linear response.

A four-channel Anti-lock Braking System (ABS) with Electronic Brake force Distribution (EBD) is standard on the RDX. ABS helps the driver retain steering control during hard braking. EBD automatically proportions brake power to the rear brakes according to the vehicle load and driving conditions, improving stopping performance.

The RDX also has brake assist, which uses a microprocessor that recognizes the driver’s intention to quickly and forcefully apply the brakes in an accident-avoidance situation. In this case, brake assist immediately supplements the braking force, enabling the best braking performance in the moment when it’s most needed. Brake assist only supplements the driver’s intentions, and its function terminates immediately when the driver releases the brake pedal.

Vehicle Stability Assist With Traction Control

Vehicle Stability Assist (VSA(R)) is included as standard equipment. By continually monitoring the vehicle’s operating parameters (such as vehicle speed, throttle position, steering angle, individual wheel speeds, lateral g, and yaw rate), VSA(R) detects if the vehicle is about to oversteer or understeer. To help correct either of these situations, 4-channel VSA(R) automatically reduces the engine’s torque output as needed, and applies one or more brakes individually, to help stabilize the chassis. The response is so quick that the instability may be corrected even before the driver knows it’s occurring. Traction Control is integrated into the VSA(R) and in cooperation with SH-AWD(TM) helps the RDX accelerate smoothly on slippery surfaces.

Tire Pressure Monitoring System

Acura RDX has an onboard Tire Pressure Monitoring System (TPMS) that warns the driver if the air pressure decreases significantly in any tire. The system helps reduce the chance of damaging a tire or losing control of the vehicle due to low air pressure. This is important because a slow leak, such as one that might be caused by a nail or road debris, might not be easily detectable but could cause significant air loss, loss of grip and potentially a blowout.

TPMS uses a sensor mounted on each wheel that continually monitors tire pressure and sends a coded signal to the TPMS electronic control unit (ECU). The process begins with a signal initiator located inboard of each tire on the chassis. The initiator sends a unique signal for each TPMS sensor. Then the TPMS sensor sends tire pressure data to the TPMS ECU, which compares the values for each tire’s pressure against an acceptable range of pressures.

On the RDX with Technology Package, when a tire’s pressure drops significantly below the proper level, a “CHECK TIRE PRESSURE” alert will appear on the Multi-Information Display (MID) alert screen. The system can display the air pressure in all four tires simultaneously via the MID, making it simple to locate a low-pressure tire. If there is a fault in the system, a “CHECK TPMS SYSTEM” alert appears.

On the RDX without the Technology Package, the MID shows the location of the tire with significant pressure loss, not the actual pressure readout.

While driving, at the driver’s preference, the Multi-Information Display can continually show the air pressure in all four tires while the ignition is on. If the ignition is switched off and then back on again, the display reverts to the TPMS status screen. Regardless of whether the driver chooses to monitor the pressures, a warning will still occur if a tire drops below specification.

Fuel Tank And Driving Range

The RDX’s large 18-gallon tank is located in a protected position under the body and forward of the rear wheels. Based on Acura’s estimated combined fuel economy of 21 mpg, the RDX can cover over 375 miles on one tank of fuel, farther than the BMW X3.

1,500-Pound Tow Rating

For added utility, the RDX has a 1,500-pound tow rating, when equipped with the available towing package. That makes the RDX capable of pulling a small camping trailer, personal watercraft or motorcycle trailer.

RDX Exterior Accessories

A wide range of exterior accessories has been developed for the 2007 Acura RDX. Because of this simultaneous engineering, the accessories are guaranteed to fit right, work right, and have the lasting durability and value that Acura customers expect. When selected at the time of vehicle purchase, they are also covered by Acura’s 4-year/50,000-miles basic warranty.

• Front spoiler
• Rear diffuser
• Sport running boards
• Full nose mask
• Splash guards
• Hood air deflector
• Roof rack
• Body Side Molding (color matched)
• 19-inch aluminum alloy wheels
• Class 1 towing package (1,500 lbs.)
• Moonroof visor
• Back-up sensors (color matched)
• Rear bumper applique
• Gold emblems
• Wheel locks

Ecology

Like all products from Honda of America Manufacturing’s facility in Marysville, Ohio, the RDX follows strict guidelines for environmental care – both in manufacturing and in the actual vehicle components. Following is a partial list of significant environmental processes used in creating the RDX and reducing its long-term environmental impact.

 

• More than 90% of RDX component parts are made of recyclable materials
• The use of non-chromed tanned leather in leather-equipped models reduces hazardous waste generation during the tanning process, and can be composted at the end of the vehicle’s life
• Elimination of PVC material in most interior parts (door lining, seat trim, shift knob, etc.) and exterior parts (roof and door moldings, weather strips and tubes) improves recyclability
• Halogen is eliminated from fire-retardant materials, and wheel balance weights and electro-deposition paints contain no lead
• Use of molded-in color plastics reduces paint use and factory emissions
• Replacement of ABS plastic with polypropylene material in the center console, instrument panel and doors reduces emissions during plastic manufacturing

c|net: 2006 Acura TL

c|net reviews the 2006 Acura TL.

IMHO, what once was leading edge is now tired and in need of a mid-cycle update.

Acura especially needs a new V-6 engine: 258 horsepower isn’t enough in this class. The SOHC design and restricted exhaust flow (the exhaust “manifold” is cast into the cylinder head) severely limits performance. The heads are a 4-valve design, although using only a single overhead cam. That means that cam phasing is used, not variable cam timing where both the intake and exhaust cams can be varied independently. Compare and contrast to the Lexus IS350 engine – which is probably the technical high-water mark of V-6 engines at the moment.

But we’ll see what Infiniti brings to the table next week in New York. If the rumored 3.7 liter DOHC V-6 engine with 330 HP is true, and if Infiniti remembers that this is a drivers car and doesn’t restrict the handling with over-intrusive controls, then the new G35 (G37?) will be the drivers car to get.

Acura Announces March Sales Results.

Driven by another month of record sales for the TSX and strong sales of the TL luxury sedan, Acura sold 17,524 units during the month of March, the division announced today.

The TSX sports sedan continued its recent sales momentum in March, with 3,355 units sold during the month, up eight percent from the previous record of 3,107 set in 2005. Year-to-date sales totals of the TSX reached 9,233 units – up nearly 16 percent from a year ago. The sales numbers for the sports sedan also marked the fourth straight month of record sales for the model. The TL performance luxury sedan was the top selling Acura in March, with 6,767 units sold, bringing the TL year-to-date sales total to 16,804.

Source: Hondanews.com: Latest Acura Automobile Photos and Releases

2006 Acura TL review

Review of the 2006 Acura TL. The TL is getting a bit long in the tooth… and a replacement is a ways off.

Source: CNET Reviews – Most Recent Automobiles  

 

Acura RL @ Thunderhill 25-hour Enduro

An RL race car? What a great idea – the car is a technological showpeice and should be highlighted. And, it’s a great way for Honda (er, Acura) to leverage the expertiese of it’s partner Spoon to stress test production (and very complex) components. And “production” they were… all the changes were made within the existing rules, including lightening and blueprinting. And the drivetrain was surprisingly stick, with only the usual coolers that are the norm for this type of event.

Unfortunately, as these types of enduro events go, the car hit some debris out on the track and ended up loosing the engine… thru no fault of it’s own. All-in-all, a strong testament to Honda engineering.

 

 

NAIAS: Acura RDX (prototype)

Turbocharged Acura RDX Prototype Debuts at North American International Auto Show
Sporty SUV features Acura’s First-Ever Turbocharged Engine and Super Handling-AWD

DETROIT 01/09/2006 — The highly anticipated Acura RDX Prototype SUV debuted today at the North American International Auto Show. Combining sport utility with sports sedan handling and performance, RDX features an innovative 2.3-liter four-cylinder turbocharged engine, Acura’s exclusive Super Handling All-Wheel Drive(TM) (SH-AWD(TM)), and is designed to redefine the entry premium SUV segment. This near-production prototype provides an advance preview of the all-new RDX that will go on sale this summer.

“The RDX Prototype represents the forward thinking that will be seen in the next generation of Acura light trucks,” said John Mendel, senior vice president, Auto Operations. “It is loaded with leading edge technology and it exemplifies what we call intelligent performance: a sporty, luxurious and functional SUV that has outstanding performance yet is also fuel efficient.”

RDX features an all-new 2.3-liter i-VTEC(R) four-cylinder turbocharged engine that generates 240 horsepower and 260 lbs-ft of torque. This is the first application of forced induction technology in Acura history. The revolutionary i-VTEC Turbo technology uses a variable flow turbocharger, which is exclusive to the RDX, and provides dramatic performance benefits while maintaining excellent fuel efficiency. To complement the all-aluminum high-performance engine, the RDX utilizes Acura’s steering wheel-mounted paddle shifters to manually operate the 5-speed sequential SportShift(TM) automatic transmission.

Acura’s Super Handling-AWD system is tuned specifically for the new RDX platform. SH-AWD’s sophisticated electronic controls automatically distribute torque fore and aft, as well as splitting the rear torque left to right. The result is dramatically enhanced handling, traction and stability during sporty driving as well as in inclement weather. A sophisticated chassis with fully independent front and rear suspension complement the SH-AWD. Vehicle Stability Assist (VSA(R)) combines with large disc brakes and ABS to enhance control.

The RDX is built on an all-new global light truck platform. Reflecting Acura’s commitment to safety through innovation, the RDX is equipped with the Advanced Compatibility Engineering(TM) (ACE(TM)) body structure and additional state-of-the-art safety features. The ACE structure helps to disperse collision forces over a larger frontal area. The system also helps to provide enhanced protection for vehicle occupants while at the same time increasing compatibility with other vehicles in a frontal collision. Front, side and side curtain airbags, in addition to rollover sensors add an extra measure of safety.

The chiseled exterior styling combines with a generous greenhouse to provide excellent visibility for driving in city traffic or on twisty mountain roads. RDX employs a compact upper body with an aggressively raked belt line, sporty wheel flares and a substantial hood that flows down from the windshield to an aggressive Acura signature five-sided grill. Custom 19-inch alloy wheels give the RDX Prototype an aggressive stance. Dual exhaust tips, HID headlights, and a rear spoiler add to the sporty appearance of the vehicle.

Inside, the RDX combines richly appointed materials with a sporty, driver-oriented cockpit. The center console features an innovative storage system, which allows for hidden and lockable storage of a briefcase or laptop computer. The prototype’s interior features an assortment of leading-edge technologies, such as the Acura Navigation System with Voice Recognition(TM), AcuraLink(TM) satellite communication system with real time traffic and HandsFreeLink(TM) wireless telephone interface. A premium Acura/ELS(TM) DVD-Audio system is tuned to deliver rich surround sound to the cabin.

The RDX offers seating for five and a versatile rear cargo hatch allows for easy load-in and storage. The second row seats split and fold flat into the floor, providing ample cargo space for an active, on-the-go lifestyle.

The RDX will be assembled at Honda of America Manufacturing in Marysville, Ohio and will go on-sale in the summer of 2006. Pricing has not been determined