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Engine Tuning
The IPL G Coupe's enhanced performance comes from
the synergetic effects of three technology areas - engine tuning, dynamic
tuning, and sound quality/acceleration feel tuning. Engine performance
modifications were selected not only for increased horsepower and torque levels,
but also for acceleration feel and exhaust sound without compromising fuel
economy or noise standards.
The IPL G Coupe's advanced VQ37HR 3.7-liter
V6 engine management system has been recalibrated through air-fuel mixture and
ignition timing optimization, raising the maximum horsepower output point to
7,400 rpm (from 7,000 rpm). To obtain a natural acceleration feel, the torque
curve from low revs to the maximum torque point (5,200 rpm) was tuned for
linearity.
The IPL-tuned high-flow exhaust is a full dual exhaust design
with independent left and right large diameter pipes. The muffler's inner
structure and materials have been maximized to reduce pressure and provide an
appropriate performance exhaust note. The result is a 30% reduction in exhaust
pressure versus a base G Coupe's Y-pipe exhaust system design.
As a
result of both the exhaust system and engine management changes, the IPL G Coupe
generates 348 horsepower - an increase of 18 horsepower over the non-IPL models
- and 276 lb-ft of torque (+6 lb-ft).
Stiffer Suspension
Equally inspiring is the IPL G Coupe's dynamic vehicle performance, which
focuses on providing confident handling, flat ride and smooth ride comfort. The
IPL suspension tuning and damping management philosophy is designed to optimize
each aspect of the suspension, effectively connecting the driver to the road
surface while minimizing uncomfortable vibrations. Front spring rates have been
increased 20% over the base G Coupe and rear spring rates increased 10%. Shock
tuning has also been adjusted.
The IPL G Coupe also offers a sport-tuned
steering gear and large 4-wheel sport brakes (14-inch front, 13.8-inch rear)
with aluminum-alloy opposed calipers (4-piston front/2-piston rear) and Viscous
Limited-Slip Differential (VLSD).
Technological and Convenience
Features
Technological and convenience features include standard
Infiniti Intelligent Key with Push Button Ignition, Remote Keyless Entry system,
a tilt/telescoping steering column with increased travel, illuminated glove
compartment and automatic temperature control. Also standard is XM Satellite
Radio (XM subscription required, sold separately) and an 11-speaker Infiniti
"Studio on Wheels" by Bose with a 3-way front door speaker array using 10-inch
woofers.
The IPL G Coupe's standard Infiniti Navigation System features
XM NavTraffic Real-Time Traffic Information, XM NavWeather with Real-Time
Weather and 3-day forecast (XM subscription required, sold separately), and
Zagat Survey Restaurant Guide. The system also includes touch screen and 9.3GB
Music Box Hard Drive.
Every 2011 IPL G Coupe offers a long list of
standard safety and security features, including an Advanced Air Bag System
(AABS) with dual-stage supplemental front air bags with seat belt and occupant
classification sensors is standard, roof-mounted curtain side impact
supplemental air bags for front and rear-seat outboard occupant head protection
and front seat-mounted side impact supplemental air bags.
Also standard
are 3-point ALR/ELR seat belts (driver's side ELR only) and front seat belts
with pretensioners and load limiters and adjustable upper anchors, driver and
front-passenger knee bolsters, front seat Active Head Restraints and the LATCH
System (Lower Anchors and Tethers for CHildren). Available as part of the
Technology Package are brake-operated pre-crash seat belts with motion sensor on
the brake pedal.
The 2011 IPL G Coupe is available in two fully equipped
models: IPL G Coupe and IPL G Coupe 6MT. There are no options.
Infiniti IPL G Coupe: Photo Gallery, Review (1/2) and Specifications
