Comment fonctionnent les voitures de course NASCAR

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La voiture n ° 22 sponsorisée par Caterpillar. Voir plus de photos NASCAR. Photo gracieuseté de Caterpillar

Au début, les courses de stock-cars étaient exactement ce à quoi cela ressemblait. Les conducteurs ont en fait acheté des voitures neuves à des concessionnaires et sont partis en course. le Association nationale des courses automobiles de stock car (NASCAR), organisé en 1947, a créé un ensemble normalisé de règles pour les courses de stock-car et a établi un système de sélection d'un champion national basé sur ses performances lors de courses à travers le pays..

Les courses originales se sont déroulées sur des pistes en terre battues et cahoteuses. Les voitures non modifiées n'étaient pas assez résistantes pour ce type d'abus, donc NASCAR a commencé à autoriser des modifications aux voitures de série pour augmenter leur durabilité. Au fil des ans, de plus en plus de modifications ont été apportées, parfois pour augmenter la sécurité (voir Comment fonctionne la sécurité NASCAR pour plus de détails) et parfois pour améliorer la concurrence. NASCAR contrôle strictement toutes ces modifications, qui sont décrites en détail dans le livre de règles NASCAR. Les voitures sont vérifiées pour le respect de ces règles à chaque course.

Aujourd'hui, les voitures de course NASCAR ont très peu de choses en commun avec les voitures de rue. Presque tous les détails d'une voiture NASCAR sont faits à la main. Les corps sont construits en tôle plate, les moteurs sont assemblés à partir d'un bloc nu et le cadre est construit en tube d'acier.

Dans cet article, nous verrons comment ces voitures de course sont fabriquées, en commençant par un composant essentiel à la sécurité des pilotes et qui constitue la base de tout ce qui se trouve sur la voiture: le cadre.

Remerciement spécial à chenille® et Bill Davis Racing

12.05.23 10:51
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