Pagani Huayra
Encyclopedia
The Pagani Huayra is an Italian mid-engined
Mid-engine design
A mid-engine layout describes the placement of an automobile engine between the rear and front axles. Another term for this is mid-ship.-Benefits:The mid-engine layout is typically chosen for its relatively favorable weight distribution...

 sports car
Sports car
A sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....

 produced by Pagani
Pagani
Pagani Automobili S.p.A. is an Italian manufacturer of sports cars and carbon fibre. The company was founded in 1992 by Horacio Pagani, and is based in San Cesario sul Panaro, near Modena, Italy.-History:...

. Succeeding the company's previous offering, the Zonda
Pagani Zonda
The Pagani Zonda is a sports car built by the Italian manufacturer Pagani. It debuted in 1999, and production ended in 2011. As of June 2009, 206 Zondas had been built, including test mules. Both 2-seat coupe and convertible versions have been produced. Construction is mainly of carbon...

, it will cost £850,000 ($1,345,000) when it goes on sale in Spring 2012. It is named after Huayra-tata
Huayra-tata
Huayra-tata was a god worshiped by the Puruhá Quechuas and Aymaras of the Bolivian and Peruvian Andes prior to European colonization.The god was represented as a human figure with two heads and serpents coiled around him from head to foot...

, a South American wind god.

Performance

Like the Zonda, the Huayra uses a Mercedes-AMG
Mercedes-AMG
Mercedes-AMG GmbH, commonly known as AMG, is a subsidiary of the Mercedes-Benz car company specializing in high-performance luxury cars....

 60° V-12 engine, now fitted with dual turbocharger
Turbocharger
A turbocharger, or turbo , from the Greek "τύρβη" is a centrifugal compressor powered by a turbine that is driven by an engine's exhaust gases. Its benefit lies with the compressor increasing the mass of air entering the engine , thereby resulting in greater performance...

s. This engine, the M158, produces over 700 horsepower
Horsepower
Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...

 and 1000 newton metre of torque. Its top speed is 230 mph (102.8 m/s) and it has a 0–100 km/h (0-62 mph) time of less than 3.5 seconds. Using Pirelli
Pirelli
Pirelli & C. SpA is a diverse multinational company based in Milan, Italy. The company, the world’s fifth largest tyre manufacturer, is present in over 160 countries, has 20 manufacturing sites around the world and a network of around 10,000 distributors and retailers.Founded in Milan in 1872,...

 tires, the Pagani Huayra is capable of withstanding 1.5g of lateral acceleration at speeds of up to 230 mph (102.8 m/s).

Unlike many modern supercars, the Pagani Huayra does not use a dual-clutch gearbox; instead it uses a seven-speed sequential gearbox and a dual-disc clutch. The choice not to use a dual-clutch in oil bath was because it would lead to an increase in weight of over 70 kg (154 lb), negating the advantage of the ability of such transmissions to change gears faster. As a result, the entire transmission of the Pagani Huayra weighs 96 kg (211.6 lb).

Engine

Mercedes-Benz's AMG division provides the engine of the Huayra. The 5,980 cc, twin-turbo, 60° V12 is shared with the Mercedes-Benz SL65 AMG Black Series
Mercedes-Benz R230
Changes include new engines for SL 350 and SL 500, with improved performance on SL 55 AMG and SL 600, as well as a new top-of-the-line SL 65 AMG. ABC was improved to reduce body movements in dynamic driving by up to 60%....

, but has been modified at the request of Pagani to reduce turbo lag and improve response, which resulted in smaller turbos, new intercoolers and re-programmed ECU settings.

The two radiators positioned laterally to the anterior face is intended to improve the efficiency of the intercoolers at the top of the cylinders. This cooling circuit at low temperature was designed to operate at temperatures exceeding 50 °C (122 °F).

Like many high-performance cars, the Huayra uses dry sump lubrication. This has several key benefits including guaranteeing oil flow even when the car is subjected to extreme lateral acceleration, preventing "oil surge" which allows the engine to operate more efficiently while the lack of an oil pan allows the engine mounted lower, reducing the car's center of gravity and improving handling.

A heat exchanger water / oil reduces engine warm-up times on cold days and helps maintain a stable temperature for refrigerant and lubricant.

To minimize the use of pipes and fittings (and the overall weight of the vehicle), the expansion tank is mounted directly on the engine. Intercooler fins act as an expansion tank circuit at low temperatures.

The M158 engine is certified to the most stringent environmental standards in Europe and America (EU5 and LEV 2).

The titanium exhaust system was designed and built by MHG-Fahrzeugtechnik. Hydroformed joints were developed to reduce back pressure and ensure a free flow exhaust.

Titanium reduces the weight of the exhaust system while the Inconel
Inconel
Inconel is a registered trademark of Special Metals Corporation that refers to a family of austenitic nickel-chromium-based superalloys. Inconel alloys are typically used in high temperature applications. It is often referred to in English as "Inco"...

 silencers improve reliability in the most exposed parts of the exhaust at high temperatures. The entire system weighs less than 10 kg (22 lb).

Chassis

The Huayra uses a carbotanium
Carbotanium
Carbotanium is a method of combining a beta titanium alloy with advanced carbon composites, the combination having a matched yield strength and moduli of elasticity ratio. When the combination is adhesively bonded both parts will approach maximum yield strength and fail at a similar amount of total...

 monocoque construction. Advanced composite materials that are used on the Huayra were first used on the Zonda R. The car features gull-wing doors. The fuel tank is positioned behind the driver.

Aerodynamics

The Pagani Huayra is different to its predecessor
Pagani Zonda
The Pagani Zonda is a sports car built by the Italian manufacturer Pagani. It debuted in 1999, and production ended in 2011. As of June 2009, 206 Zondas had been built, including test mules. Both 2-seat coupe and convertible versions have been produced. Construction is mainly of carbon...

 in that it incorporates active aerodynamics. It is capable of changing the height of the front from the ground and independently operating four flaps placed at the rear and front of the car. The behavior of the flaps is managed by a dedicated control unit that is fed information from systems such as the ABS and ECU, which pass on information about the car's speed, yaw rate, lateral acceleration, steering angle and throttle position. This is intended to achieve minimal drag coefficient
Drag coefficient
In fluid dynamics, the drag coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation, where a lower drag coefficient indicates the object will have less aerodynamic or...

 or maximum downforce
Downforce
Downforce is a downwards thrust created by the aerodynamic characteristics of a car. The purpose of downforce is to allow a car to travel faster through a corner by increasing the vertical force on the tires, thus creating more grip....

 depending on the situation. The system also prevents excess body roll in the corners by raising the "inside" flaps (i.e. the left ones in a left-handed corner and vice-versa), increasing the downforce on that side of the car. The rear flaps also act as an airbrake. Under hard braking, both the front suspension and the two rear flaps are raised to counteract weight transfer to the front wheels and keep the whole car very stable, for instance when entering a corner. Air from the radiator is extracted through an arch in the bonnet at an angle that is designed not to affect the streamline around the body. The side air intakes behind the front wheels create a low pressure zone, resulting in downforce.

Official debut

The Pagani Huayra was officially debuted online with many pictures in a press release on January 25, 2011. The official world debut was at the Geneva Auto Salon 2011 in March.

EA secured the exclusive video game rights to the Pagani Huayra in 2011, available exclusively in Need for Speed titles in 2011, Shift 2: Unleashed
Shift 2: Unleashed
Shift 2: Unleashed is a racing video game, the 17th title in the Need for Speed franchise. It was developed by Slightly Mad Studios and published by Electronic Arts...

and Need for Speed: The Run
Need for Speed: The Run
Need for Speed: The Run is a racing video game, the 18th title in the Need for Speed franchise, and developed by EA Black Box and published by Electronic Arts. The Wii and 3DS versions were developed by Firebrand Games, the team behind Undercover and Nitro...

.

External links

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