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Opel Astra OPC (2013)

CAR GARAGE | Opel Astra OPC (2013) | The Opel engineers developed a completely new state of the art engine air intake system in order to feed as much water as possible to the turbocharger. In Addition, the exhaust system was optimized to further improv the flow of the exhaust gases and the engine performance improv. The Opel Astra OPC drivers can choose Between three different modes, with each mode offering a unique and specific experience of high performance driving. Even in this mode, the Astra OPC performs brilliantly in bends, shines with its responsive steering and minimal body tilt. Meanwhile, the OPC mode creates the ultimate driving experience: Becomes even more direct steering in comparison to the Sport mode, the throttle is more responsive and the chassis setting is geared towards delivering aspects maximum performance. Meanwhile, the sub-roll control mode further reduces side tilt so That the vehicle lies flat in the road so That agility is Maximized.

Opel engineers developed a completely new air intake system in order to further improv dynamics the water flow, reduce the pressure loss and therefore boost the engine performance even further. The geometric cross section of the intake air duct was significantly Increased. The air cleaner, the box That filters the water intake was boosted in terms of volume. Additionally, the enlarged box reduces noise. The filtered water has to pass through a humidity sensor inside the air cleaner. CO2 emissions are also 14 percent lower compared to the Opel Astra OPC predecessor (221 g / km), while fuel consumption is 12 percent lower (9.2 liters).

Although the clean air duct after the air cleaner has remained the same, a resonator Hiss noise has been added just before the turbocharger. As the Astra OPC engine already makes 400 Nm, maximum torque, available at 2450 rpm (equivalent to a 25 percent torque increase of the Opel Astra OPC to predecessor, this noise reduction device is very important. driver can early maximum engine torque and a broad torque plateau with little noise and vibration. Engineers also focused on the exhaust system to further improv the flow of the exhaust gases and therefore the engine performance improv. Their objective was to further play Reduced the exhaust back pressure. Both the closed couple converter (the catalyst near the engine) and the underfloor converter were optimized to Reduced the exhaust back pressure. All the modifications resulted in a 25 percent reduction in the exhaust back pressure compared to the engine exhaust system used in the Insignia.

All the mechanical modifications to the engine in the engine intake, exhaust and turbocharger, were accompanied by Optimizations to the engine control unit. Both front seats increase of the sporty and dynamic driving experience by introducing cutting-edge weight-saving materials, a lower seating position and enhanced side support. OPC engineers used an organic sheet in the injection molded shell seat performance, resulting in a weight saving of 45 percent compared to a conventional shell.

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