Chevrolet has packed a lot of new technology into the 2014 Corvette Stingray, and now comes word that the carmaker has selected a Plymouth, Michigan company to produce the industry’s first-ever brake rotor with a ductile iron hat and gray iron brake plates for the C7′s Z51 Performance Package.
The Corvette engineering team chose SANLUIS Rassini, the world’s largest producer of suspension components for light commercial vehicles and the largest fully integrated brake disc producer in the Americas, to produce the unique two-piece rotor design, which offers significant weight savings and extreme performance at high speeds.
By using the unique combination of ductile and cast iron, the Corvette team was able to garner up to 18 percent weight savings while also improving the car’s heat management capabilities, making the Corvette’s already superb stopping power even more reliable and consistent.
As part of the Z51 package, the Rassini dual-cast braking system makes sure that drivers will have extreme confidence they will be able to stop their Stingray, which with its 6.2-liter engine will go from 0 to 60 in less than four seconds.
“By optimizing both the design and the materials used in the rotor, we are able to achieve weight savings and performance improvements that were not attainable before,” said Eugenio Madero, CEO, SANLUIS Rassini North America. “This technology was developed for high-performance vehicles like the 2014 Corvette that require better heat transfer capabilities at lighter weights.”
The rotor, which has an I-Beam extension design instead of a solid extension design, is the only composite rotor on the market that can accommodate a drum in hat, a rotor design in which the internal surface of the hat serves as a brake drum.
The I-beam design increases air flow through the vent and offers better thermal heat transfer. Using the stronger ductile iron in the hat allows Rassini engineers to maintain structural performance even while using thinner sections of metal. The system gets optimal air flow, too, thanks to the use of the center connection to the hat, better dissipating heat and reducing the stress normally present in a conventional full-cast design.
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