911 GT2 Demands Respect
Porsche has done it again with the all new 911 GT2.The power unit of the new 911 GT2 is based on the six-cylinder boxer engine of the 911 Turbo, with air supply by two exhaust gas turbochargers featuring variable turbine geometry (VTG). The 3.6-litre boxer engine achieves its maximum output of 530 bhp at 6500 rpm, with maximum torque of 680 Newton-metres maintained consistently between 2,200 and 4,500 rpm. With its unladen weight of 1,440 kg or 3,175 lb, finally, the 911 GT2 offers a power-to-weight ratio of just 2.72 kg/6.00 lb per horsepower.
The new 911 GT2 comes as standard with PCCB brakes featuring brake discs made of a composite carbon fibre/ceramic compound ensuring maximum stopping power maintained with an extremely high level of consistency. Yet another feature fitted as standard is the electronically controlled PASM Porsche Active Suspension Management. The GT2 comes on 19-inch light-alloy wheels running at the front on 235/35 ZR 19, at the rear on 325/30 ZR 19 sports tyres.Other standard features include a limited-slip differential with asymmetrical lock factor. Offering better traction and handling when exiting a corner, it applies a higher proportion of drive torque to the loaded outer rear wheel.
The six-speed manual gearbox in the new 911 GT2 is specifically designed for the high engine performance. The individual ratios are carefully matched to the specific characteristics of the engine. The gear-lever throw is short and precise, enabling fast and accurate gearshifts. Another major innovation is the use of Start-off Assistant for the first time ever in a road-going Porsche. The system is designed to maximize acceleration from a standing start. To activate the function, simply depress the clutch and accelerator pedals. When a boost pressure of approximately 13 psi is displayed in the instrument cluster, release the clutch as quickly as possible and maximum acceleration automatically ensues.
The front-end aerodynamics have been revised to compensate for the increased cooling requirements of the engine and brakes. The most impressive view is also the one that others will see most of all: the rear. The fixed rear wing with integral lip spoiler ensures optimum stability at speed. As the car accelerates and you’re pressed into your seat, air is forced through the intake openings on the rear wing uprights and into the engine turbocharging system. This ‘ram air’ effect has a key role to play in the exceptional efficiency of the engine. Since air is already being forced into the turbos, there is less resistance from the compressors and therefore less back-pressure in the exhaust, which means greater engine performance.
Tags: 911, 997, Carerra, GT2, GT3, porsche, review, sports car, turbo
