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Review (2/2)

2013 IPL G Convertible Joins Infiniti Performance Line Portfolio with Dramatic Styling, Tuned 3.7-Liter V6

Source: Infiniti | Published: Thu Nov 17, 2011

(continued from the previous page)

Engine and Transmission

Based on the premium foundation of the Infiniti G37 Convertible, the IPL G Convertible features an advanced VQ37VHR 3.7-liter V6. The engine management system has been recalibrated through air-fuel mixture and ignition timing optimization, raising the maximum horsepower output point to 7,400 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 Convertible's Y-pipe exhaust system design.

As a result of both the exhaust system and engine management changes, the IPL G Convertible generates 343 horsepower - an increase of 18 horsepower over the non-IPL models - and 273 lb-ft of torque (+6 lb-ft).

The engine is matched to an electronically controlled 7-speed automatic transmission with Downshift Rev Matching and quick-shift Drive Sport (DS) mode with magnesium paddle shifters and Adaptive Shift Control (ASC).

IPL G Convertible's Chassis and Suspension

The IPL G Convertible's enhanced dynamic vehicle performance 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 increase 14% over the G Convertible Sport model and rear spring rates increased 4%. Front stabilizer spring rates have been increased 6% over the G Convertible Sport model and rear stabilizer spring rates increased 125%. Shock tuning has also been adjusted and incorporates an all-new HF-type shock.

The IPL G Convertible 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).

Technology Features, Safety

Technological and convenience features include standard Infiniti Intelligent Key with Push Button Ignition, Remote Keyless Entry system, a power 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 Rear Sonar System.

An Advanced Air Bag System (AABS) with dual-stage supplemental front air bags with seat belt sensors and occupant classification sensor is standard, along with door-mounted curtain side-impact supplemental air bags, front-seat mounted side-impact supplemental air bags and front seat Active Head Restraints. The rear seat includes fixed head rests with rear Pop-up Roll Bars. The G Convertible also features reinforced front side members, front pillars and body sills.

"With it's pure IPL style and performance, and the added dimension of open-air motoring, the IPL G Convertible is a welcome addition to the Infiniti Performance Line lineup,'" added Poore. "Watch for more models joining the IPL lineup in the future."

The 2013 IPL G Coupe is offered in one fully equipped model, the IPL G Convertible with 7-speed automatic transmission. There are no options.

Infiniti IPL G Convertible: Photo Gallery, Review (1/2) and Specifications

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