Eking Out an Edge  

Oleh:

Mraz, Stephen J.

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 83 no. 6 (Apr. 2011), page 36-41.
Topik: Automobile Racing; Automobile Engines; Automotive Engineering

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Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.64 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Engineers and technicians at Rahal Letterman Lanigan Racing have spent the last six months or more at their headquarters just outside of Columbus, OH, turning a pair of factory-fresh M3s into GT road racers for this season's American Le Mans Racing Series (ALMS). And they have some big shoes to fill, considering the M3s the Rahal-BMW partnership ran last year won the ALMS GT championship. The BMW engineers, as well as the Rahal Team, are limited in what materials they can use in the engine. For instance, titanium can only be used in the rods, exhaust valves, and some of the retainers. And the engine block must be same as that used in the stock vehicle. BMW engineers also trimmed weight by exchanging many of the regular steel body panels for carbon-reinforced plastic versions. The Germans also apply techniques once reserved for Formula One racers, including computational-fluid-dynamics and wind-tunnel analysis, to smooth out the car's aerodynamics.

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