Lamborghini Murciélago goes on a diet

  • 09-Jul-2009 10:31 EDT
Lambo mur_sv_3-4_rear_large.jpg
Lamborghini's new Murciélago LP 670-4 SuperVeloce (SV) features weight-reducing technology from Alcoa (wheels) and Zircotec (exhaust thermal barrier coating).

Making a mass savings of 100 kg (220 lb) for a high-performance car is a significant achievement, and that is what Lamborghini has managed for its new Murciélago LP 670-4 SuperVeloce (SV) compared to the regular Murciélago.

Contributing to the savings is the use of a zirconia-based thermal barrier applied to the exhaust tailpipe. Zircotec’s 250 µm (0.0098 in) thick Diamond Black ceramic coating reduces the need for heat shields while allowing heat-sensitive materials to be fitted in close proximity to the single exhaust pipe. The coating offers a 20% reduction in surface temperature. Some 33 kg (73 lb) of the total mass reduction for the car comes from its new powertrain and exhaust system.

"Zircotec helped us in achieving the attention to detail in weight reduction on this program," said Luca Meschiari, Head of Exhausts at Lamborghini. "The coating helps save weight yet is also durable and meets our requirements in terms of performance and quality more than other solutions we have seen."

The coating is applied at Zircotec’s UK facility using gas plasma-spraying at 14,000 K, in effect welding it to the base stainless steel, so making it more resilient during heat cycling and abrasion. It also helps to meet rigorous life-cycle testing requirements. The process involves the application of a bond coat, followed by the Diamond Black ceramic finish.

Zircotec says that the lightweight coating—as low as 0.03 g/cm² for some applications—can offer other benefits beyond heat rejection; by deleting heat shields and wraps, build complexity and time are cut. The latest program for Lamborghini follows that for the 2008 Reventón, where the Diamond Black coating was used to inhibit heat transfer to the closely fitting composite panels around the tailpipe.

Alcoa Wheel Products also played a part in the mass-cutting program for the LP 670-4 SV. It is supplying lightweight forged alloy wheels for the car, which reduce unsprung mass.

"The new Murciélago SV is the product of a substantial cross-car weight-reduction program, and forged wheels are vital to this," explained David Yates, Marketing Manager for Alcoa Europe. "The engineering behind Alcoa’s wheels enables a 20% weight saving over a comparable cast aluminum wheel, benefiting handling and ride."

The exclusive five-twin-spoke wheels were designed to provide a superior metal structure that improves strength and durability, offering the opportunity to create very strong and lightweight wheels. The structure also allows for more material to be milled out to achieve finer detailing while retaining strength. Each front 18 x 8.5-in wheel has a mass of 8.9 kg (19.6 lb); the 18 x 13-in rears each are 12.3 kg (27.1 lb).

Alcoa Wheel Products has been developing, producing, and supplying alloy wheels to the global automotive industry for 60 years. The Murciélago SV project follows on Alcoa/Lamborghini collaboration on the wheels for the Reventón.

Aluminum wheels for Automobili Lamborghini are forged at Alcoa’s Cleveland, OH, plant. Alcoa describes itself as being the world leader in the production and management of primary aluminum, fabricated aluminum, and alumina combined through its "active and growing participation in all major aspects of the industry." The company was named one of the top most sustainable corporations at the World Economic Forum in Davos, Switzerland.

Share
HTML for Linking to Page
Page URL
Grade
Rate It
4.67 Avg. Rating

Read More Articles On

2017-03-06
The 7th generation 5 Series, known internally as the G30, focuses on power, torque, mass and aero-drag reduction and refinement.
2017-02-24
The visually captivating Lexus LC coupe debuts Toyota's GA-L architecture and features the new Aisin 10-speed, lightweight construction and a new hybrid powertrain.
2017-03-01
Maruti Suzuki India Limited announced that its Smart Hybrid vehicles, the Ciaz SHVS and the Ertiga SHVS, have crossed cumulative sales of 100,000 units in February.
2017-03-06
Unveiled at the 2017 Geneva Motor Show, this uber-performance hybrid uses F1 technology.

Related Items

Training / Education
2013-04-09
Article
2017-01-11
Technical Paper / Journal Article
2010-10-19
Training / Education
2013-04-09