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The McLaren SLR

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“The key modifications to the engine, which improve power by 15kW to 500kW (680hp) and add 10Nm for a total of 830Nm of torque” (McLaren 722 GT: Race Car Modifications, 2007)The latest McLaren SLR engine is capable of delivering high power and efficient torque. Modern technologies such as screw type compressor help McLaren SLR engine to deliver high performance standards. This high performing V8 engine takes only 10.6 seconds to cross the 200km/h mark and 28.8 seconds to cross the 300km/h mark. Moreover, McLaren SLR can be driven at the top speed of 334km/h.

The V8 engine is mounted on a slope position with the help of a strong aluminum frame. Features such as Water-type charge-air cooling, dry sump lubrication and catalytic converters help this car to deliver the goods. Moreover, it has the ability to deliver torque of over 600 Newtonmetres, at 2000 rpm. The maximum available torque of this engine is 780 Newtonmetres at 3250 rpm (2003→2009 Mercedes-Benz SLR McLaren, 2012). For efficient cylinder charging, Mercedes-Benz SLR McLaren has a mechanical compressor and some aluminum rotors. These equipment are Teflon coated to avoid friction losses. As mentioned earlier, Sensotronic brake system is incorporated in this car to provide additional safety.

This brake system has the ability to calculate optimum brake pressure needed while the car is moving at high speeds. Various sensors are attached to the wheels of this car to calculate the speed of each wheel and apply the pressure needed to stop it. The coordination of Sensotronic brake system with Electronic Stability Program (ESP) is done beautifully in this car. It should be noted that it is difficult to achieve such effective coordination of these two entities in high performing sports cars.

However, the McLaren engineers succeeded in blending these two systems without compromising on the safety systems of the car. Dynamic handling and directional stability are the outcomes of this coordination of Sensotronic brake system with Electronic Stability Program (ESP) (2003→2009 Mercedes-Benz SLR McLaren, 2012). As mentioned earlier, ceramic brake discs are used in McLaren SLR. It helped to ensure reliable deceleration while the driver applies the brakes. Carbon fiber, resin and powdered carbon are used to develop the cars break discs, they are pressed into shape with a silicon infiltration.


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