Acura’s gateway competition sedan brings a new spin of powertrain opening and sophistication to a shred as a 2016 ILX gains a totally new direct-injection (DI) engine, corroborated by an equally new and modernized dual-clutch involuntary transmission—both personification a pivotal purpose in severe a idea of what “gateway” can mean. The new powertrain powers all iterations of a 2016 ILX.
Replacing both a customary 2.0 and 2.4-liter engines in a 2015 ILX, a ILX’s new Direct-Injection 2.4-liter DOHC i-VTEC 4-cylinder engine combines energy with well-developed efficiency. It produces peaks of 201 horsepower and 180 lb.-ft. of torque—51 some-more horsepower and 40 lb.-ft. some-more torque than a effusive 2.0-liter involuntary transmission-equipped model. Compared to a 2.4-liter primer fibre model, a new ILX engine’s limit horsepower is a same though it arrives 200 rpm progressing during 6,800. Peak torque is adult 10 lb.-ft., nearing during 3,600 rpm contra 4,400 rpm for a effusive 2.0-liter with alleviation opposite a extended speed range. The 2016 ILX also boasts fuel-economy ratings aloft to both of a effusive powertrains, with an EPA rating of 25/36/291 mpg city/hwy/combined.
To make a many of a powerful, polished and fit new engine, a ILX facilities a rarely modernized new 8-Speed Dual-Clutch Transmission (DCT) featuring Sequential SportShift. The DCT, with a closely-spaced ratios, ultra-quick shifts and involuntary downshift rev-matching, gives a new ILX an aggressively sporting, nonetheless polished feel. The torque converter provides unusually well-spoken operation in stop-and-go situations, and it offers off-the-line torque computation for almost softened initial acceleration that a DCT alone can't equal.
Powertrain during a Glance:
- 2.4-liter, DOHC, inline-four engine produces rise outlay of 201 horsepower during 6,800 rpm and rise torque of 180 lb.-ft. during 3,600 rpm
- i-VTEC® (intelligent Variable Valve Timing Control and Lift Electronic Control) for intake valves
- Computer-controlled Direct Injection (DI) with multi-hole fuel injectors
- 11.6:1 application ratio
- High-strength steel crankshaft
- Drive-by-Wire™ stifle system
- Direct ignition system
- Detonation/knock control system
- Maintenance Minder™ complement optimizes use intervals
- 100,000 +/- miles tune-up interval3
- High-flow, close-coupled next-generation changed steel catalytic converter and underneath building catalytic converter
- LEV III/ ULEV125 Emissions compliant
- 25/36/291 (city/highway/combined) mpg EPA fuel-economy ratings
- Sequential SportShift 8-Speed Dual-Clutch Transmission (DCT) with Torque Converter and Paddle Shifters
- Straight-gate character console-mounted shifter
- Sequential SportShift allows semi-manual operation
- Steering wheel-mounted, racing-inspired paddle shifters
- Cooperative control between Drive-by-Wire stifle complement and fibre creates for quicker, smoother shifts
- Advanced shift-hold control boundary adult shifts during energetic pushing
- Grade Logic Control System reduces rigging “hunting” on high hills
Direct-Injected 2.4-liter In-line 4-cylinder Engine
The ILX’s new Direct Injection (DI) 2.4-liter DOHC i-VTEC 4-cylinder engine brings a horde of intelligent record to a segment. The engine’s i-VTEC complement combines VTC (Variable Timing Control), that invariably adjusts a intake camshaft phase, with Variable Valve Timing and Lift Electronic Control (VTEC), that changes valve lift, timing and generation of a intake valves. Increased engine displacement, a new Direct Injection (DI) system, dual-stage intake plural and other technologies brew to furnish adult to 40 lb.-ft. some-more torque with larger energy accessible over a whole handling range, generally in a essential mid-rpm area.
Fuel economy ratings are exceptional, due in partial to fit Direct Injection, a new combustion-chamber design, equivalent cylinder bores and a operation of friction-reducing technologies. The ILX has an EPA fuel-economy rating of 25/36/291 mpg city/hwy/combined. That’s a poignant boost over both a effusive 2.0-liter and 2.4-liter engines, that were rated during 24/35/281 and 22/31/25, respectively. The new 4-cylinder engine also meets LEV III/ULEV125 emissions standards in name states, and Federal Tier 2, Bin 5 standards.
Engine Block, Crankshaft and Pistons
The ILX’s engine has a lightweight die-cast aluminum retard with a singular main-bearing cradle pattern that creates a firm public to assistance minimize sound and vibration. Cast-in iron cylinder liners produce long-lasting durability. Each biography on a forged-steel crankshaft is micropolished to revoke inner friction. To urge fibre around a rpm operation and assistance revoke sound levels, a engine is propitious with an inner balancer unit. Consisting of a span of chain-driven counter-rotating shafts located in a revoke retard and integrated into a oil pan, a balancing complement helps relieve a fundamental second-order harmonic vibrations that routinely impact inline 4-cylinder engines.
To revoke piston-sliding friction, a cylinder bores are equivalent by 8.0 mm from a crankshaft. This gives a joining rods a some-more auspicious angle during any energy stroke, that reduces side loading on a pistons and in turn, improves efficiency. The engine facilities a fake crankshaft for high acerbity and low friction. Lightweight pistons have a delicately optimized dress pattern to minimize reciprocating weight, and reduced weight minimizes quivering and increases handling efficiency. The piston crowns are dished, to assistance say fast explosion and to optimize placement of a stratified fuel assign from a approach injector in any cylinder. This tighten control over a explosion routine boosts altogether handling efficiency.
Dual-Stage Intake Manifold
To maximize energy output, a engine has a dual-stage intake plural with twin opposite intake curtain lengths that are comparison formed on a handling conditions. An actuator and a set of 4 moth valves control a intake-runner switching process. At low engine speeds, a prolonged runners are used to urge low-end torque. At aloft engine speeds a complement switches to a brief intake runners for larger high-rpm power. The outcome is intake tuning that is optimized for a engine’s whole handling range.
Cylinder Head and Valvetrain
The lightweight cylinder conduct is done of pressure-cast aluminum alloy, with empty passages expel directly into a cylinder head. This eliminates a need for a normal apart empty plural and allows a close-coupled catalytic converter to be mounted directly to a cylinder head.
A wordless sequence drives a twin beyond cams and facilities a double-arm tensioner pattern that reduces handling friction. The cam expostulate is designed to be upkeep giveaway around a life of a engine.
To assistance boost fuel potency and power, a explosion cover figure and valve angles have been optimized. The enclosed valve angle is a slight 35 degrees, that decreases a surface-to-volume ratio and helps emanate a flatter, some-more compress explosion cover that reduces unburned hydrocarbon emissions. With this explosion cover figure and a accurate control of approach injection, a application ratio set during 11.6:1.
The cylinder conduct facilities a new “tumble port” intake design. In multiple with a new explosion cover and piston climax shape, a design’s high spin of airflow diminution helps emanate a homogenous fuel reduction for low fuel expenditure and high airflow for high energy output.
i–VTEC Valve Control System
The ILX’s DOHC 16-valve i-VTEC engine uses an modernized valve-control complement to brew high energy outlay with high fuel potency and low emissions. The complement combines VTC (Variable Timing Control), that invariably adjusts a intake camshaft phase, with Variable Valve Timing and Lift Electronic Control (VTEC), that changes valve lift, timing and generation of a intake valves.
At low rpm, a VTEC intake valve timing and lift are optimized for high torque and low fuel consumption. As engine rpm builds past 4,900 rpm, a VTEC complement transitions to a high-lift, long-duration intake cam form for aloft high-rpm engine power.
The “intelligent” apportionment of a complement is a ability to invariably change a timing of a intake cam relations to that of a empty camshaft. This helps boost energy and also provides a smoother idle (allowing idle speed to be reduced). The intake cam timing is sundry formed on submit from sensors that guard rpm, timing, stifle opening, cam position and empty air-fuel ratio. The outcome is increasing fuel potency and revoke NOx emissions.
Cold-Air Induction System
To maximize energy output, a ILX has a cold-air intake complement that picks adult engine initiation atmosphere from a grille area during a front of a vehicle. Cooler intake atmosphere has larger density, that allows a direct-injection complement to supplement proportionately some-more fuel for extended energy output.
The ILX direct-injection complement facilities a compact, high-pressure, injection siphon that allows both high fuel upsurge and tapping suppression, while non-static vigour control optimizes injector operation. A multi-hole injector delivers fuel directly into any cylinder (not to a intake port, as in compulsory pier fuel-injection designs), permitting for some-more fit explosion and larger energy output.
The multi-hole injectors assistance emanate a ideal stoichiometric fuel/air reduction in a cylinders for good emissions control. Theoretically, a stoichiometric reduction has usually adequate atmosphere to totally bake a accessible fuel. Based on a handling conditions, a direct-injection complement alters a duty for best performance. Upon cold engine startup, fuel is injected into a cylinders on a application stroke. This creates a diseased stratified assign outcome that improves engine start-up and reduces empty emissions before a normal handling heat is reached. For limit energy and fuel efficiency, fuel is injected during a intake cadence once a engine is entirely warmed up. This helps emanate a some-more comparable fuel/air brew in a cylinder. This improves volumetric efficiency, and a cooling outcome of a incoming fuel improves anti-knock performance.
Drive-by-Wire™ Throttle System
The ILX Drive-by-Wire™ stifle complement replaces a compulsory stifle wire with intelligent wiring that “connect” a accelerator pedal to a stifle valve inside a stifle body. The outcome is reduction under-hood confusion and revoke weight, as good as quicker and some-more accurate stifle actuation. Plus, a specifically involuntary “gain” rate between a stifle pedal and engine offers softened drivability and optimized engine response to fit specific pushing conditions.
Acura’s Drive-by-Wire stifle complement establishes a stream pushing conditions by monitoring stifle pedal position, stifle valve position, engine speed (rpm) and highway speed. This information is used to conclude a stifle control attraction that gives a ILX’s stifle pedal a predicted and manageable feel that meets motorist expectations.
Direct Ignition and Detonation/Knock Control
The ILX’s Electronic Control Unit (ECU) monitors engine functions to establish a best ignition hint timing. Engine block-mounted acoustic detonation/knock sensors “listen” to a engine, and formed on this input, a ECU can retard a ignition timing to forestall potentially deleterious detonation. An ignition curl territory for any cylinder is positioned above any hint plug’s entrance bore.
The empty plural is expel directly into a ILX’s aluminum cylinder conduct to revoke weight, diminution tools count, and emanate some-more under-hood space. The outcome of this casting pattern is that a primary catalytic converters are positioned most closer to a explosion chambers, enabling intensely fast converter “light-off” after engine start. A poignant weight assets is satisfied by expelling normal empty manifolds.
The 2016 ILX meets a tough EPA Tier 2/Bin 5 and CARB LEV III/ ULEV125 emissions standards, and is approved to this spin of emissions opening for 120,000 miles. A series of modernized technologies are factors in a emissions performance. The singular cylinder head-mounted close-coupled catalytic converters light off some-more fast after engine start up, and a 32-bit RISC microprocessor within a Electronic Control Unit (ECU) boosts computing energy to urge a pointing of hint and fuel delivery.
The engine also facilities Programmed Fuel Injection (PGM-FI) that ceaselessly adjusts a fuel fibre to produce a best multiple of power, low fuel expenditure and low emissions. Multiple sensors constantly guard vicious engine handling parameters such as intake atmosphere temperature, ambient atmosphere pressure, stifle position, intake airflow volume, intake plural pressure, coolant temperature, exhaust-to-air ratios, as good as a position of a crankshaft and a camshafts.
The ILX engine creates use of friction-reducing technologies designed to urge engine efficiency. The outdoor skirts of lightweight aluminum pistons underline a special cloaking that reduces altogether attrition as a pistons pierce within a cylinder bores. Plateau honing serve lowers a attrition spin between a pistons and a cylinders by formulating an ultra-smooth surface. Plateau honing is a 2-stage machining routine that uses twin harsh processes instead of a some-more compulsory singular honing process. This also enhances a long-term wear characteristics of a engine.
One-Touch Start System
To safeguard unchanging starting, a ILX has a one-touch start complement that maintains starter rendezvous until a engine starts. Should a motorist recover a Start symbol before a engine starts, a complement will continue cranking to start a engine. Simply lift a Start symbol (with a feet on a stop pedal and a fob in a vehicle)—the engine is designed to automatically start up.
100,000+/- Mile Tune-up Intervals
The ILX’s engine does not need scheduled upkeep for 100,000+/- miles or more, other than periodic inspections and normal liquid and filter replacements. The initial tune-up includes H2O siphon inspection, valve composition and designation of new hint plugs.
Maintenance Minder™ System
To discharge nonessential use stops while ensuring that a car is scrupulously maintained, a ILX has a Maintenance Minder™ complement that ceaselessly monitors a vehicle’s handling condition. When upkeep is required, a motorist is alerted around a summary on a Multi-Information Display (MID).
The Maintenance Minder™ complement monitors handling conditions such as oil and coolant heat along with engine speed to establish a correct use intervals. Depending on handling conditions, oil-change intervals can be extended to a limit of 10,000 miles, potentially provident a owners estimable responsibility and nuisance over a life of a vehicle. The owner-resettable complement monitors all normal use tools and systems, including oil and filter, tire rotation, atmosphere cleaner, involuntary fibre fluid, hint plugs, timing belt, coolant, stop pads and more. To lessen a intensity for motorist distraction, upkeep alerts are presented on a MID usually when a ignition is initial incited on, not while driving.
Sequential SportShift 8-Speed Dual-Clutch Transmission (DCT) with Torque Converter
To maximize opening and fuel efficiency, a 2016 ILX has a customary 8-Speed Dual-Clutch Transmission (DCT), in that one purchase controls a peculiar gears while a other purchase controls a even gears. This arrangement allows involuntary or primer rigging changes with a most smaller stop in energy to a wheels, ensuing in millisecond-quick shifts. In addition, a DCT’s fit energy fibre and wider altogether ratio operation minister to a ILX’s estimable benefit in fuel efficiency. Compared to a compulsory primer transmission, a operation of a clutches and changeable mechanisms are electronically controlled, expelling a need for a purchase pedal or primer change lever. The DCT with a closely spaced ratios, ultra-quick shifts and involuntary downshift rev-matching, gives a ILX an refreshing and sporty feel. The DCT fibre in a ILX also facilities a steering wheel-mounted paddle-shifter complement that lets a motorist take primer control of fibre rigging selection, serve worsening a pushing experience.
The ultra-thin torque converter complements a fit operation of a DCT by providing unusually well-spoken operation in stop-and-go situations, and it offers off-the-line torque computation for softened initial acceleration that a DCT alone can’t equal. In an assertive standing-start launch, a torque converter almost improves initial acceleration.
Cooperative Transmission Control
Both change opening and fibre are softened by mild control between a Drive-by-Wire stifle complement and a transmission. The engine is throttled by a engine government complement during upshifts and downshifts, so a duty of a engine and fibre can be closely choreographed for faster, smoother shifting. As a result, a rise g-forces (or “shift shock”) are reduced significantly during upshifts and downshifts.
The ILX fibre can be operated in twin different, entirely involuntary modes that are tranquil by a change lever. In Drive (D) mode, a fibre combines fuel potency with well-spoken operation and manageable energy when needed. When Sport (S) mode is selected, a fibre switches to some-more assertive mapping that puts a importance on performance-oriented driving, with aloft engine rpm for larger acceleration and response.
Smart Transmission Logic
The ILX fibre incorporates an modernized Grade Logic Control System, Shift Hold Control and Cornering G Shift Control — all of that revoke neglected changeable and rigging hunting. The outcome is intelligent fibre operation that optimizes fuel potency and keeps a fibre in a suitable rigging for pushing conditions, generating glorious opening and well-spoken operation.
While forward or forward hills, Grade Logic Control alters a transmission’s change report to revoke change magnitude and urge speed control. The fibre ECU ceaselessly measures stifle position, car speed and acceleration/deceleration to establish when a car is on a hill. The change report is afterwards practiced — during ascents to reason a fibre in revoke gears to boost climbing power, and during descents to produce larger engine braking.
Shift Hold Control keeps a fibre in a stream (lower) rigging ratio during assertive driving, as in a box of decelerating during a dilemma entry. Shift Hold Control leaves a framework composed by expelling additional changeable and ensures that energy will be immediately accessible (without a downshift) during a dilemma exit. Cornering G Shift Control monitors a car parallel acceleration to establish when a ILX is turning. When a complement detects sufficient cornering speed, it will conceal any neglected upshifts. This prevents a fibre from upshifting during a corner, that could dissapoint a framework change so requiring downshifting again during a dilemma exit when a stifle is applied.
Paddle Shifter Operation in Drive Modes
While in Drive mode, special fibre proof programming allows a use of a steering-wheel-mounted paddle shifters. When a motorist operates a paddle shifters, a fibre responds to a driver’s change authority and afterwards earnings to a normal entirely involuntary mode if serve paddle change inputs are not done within a given time. This special proof creates it easy for a motorist to authority a discerning downshift but withdrawal a preference of Drive mode.
Paddle Shifter Operation in Sport Mode
When Sport is comparison with a shifter, a lift on a racing-inspired paddle shifters (mounted on a steering wheel) places a fibre in entirely primer mode until another mode of operation is selected. A digital arrangement in a instrument cluster indicates that rigging a fibre is in.
A double-kick-down underline lets a motorist authority a sport-minded double downshift — such as from Fifth to Third gear. By pulling on a left downshift paddle twice in fast succession, a fibre will dump directly to a selected revoke rigging ratio. The Drive-by-Wire stifle complement also creates a “blip” of a stifle to assistance compare rigging speeds while downshifting.
To forestall mistreat to a powertrain when a fibre is paddle shifted by a motorist (including during double-kick-down shifts), a complement will stop potentially deleterious shifts. As an combined reserve measure, a Electronic Control Unit (ECU) can also cut off fuel to a engine to forestall over-revving. On downshifts, a fibre will not govern a motorist authority that will over-rev a engine.
1 Based on 2016 EPA mileage ratings. Use for comparison functions only. Your mileage will change depending on pushing conditions, how we expostulate and say your car and other factors.
2 Customers who select to use Regular gasoline should design reductions in power, opening and fuel economy.
3 Does not request to liquid and filter changes or periodic inspections. Please impute to a upkeep territory of your owner’s primer to establish all suitable upkeep intervals.