{"id":1540,"date":"2018-08-07T08:34:03","date_gmt":"2018-08-07T06:34:03","guid":{"rendered":"https:\/\/www.oreca-store.com\/blog\/quest-ce-quune-ligne-groupe-n\/"},"modified":"2023-11-27T22:09:26","modified_gmt":"2023-11-27T21:09:26","slug":"quest-ce-quune-ligne-groupe-n","status":"publish","type":"post","link":"https:\/\/www.oreca-store.com\/blog\/tutoriels-cat\/quest-ce-quune-ligne-groupe-n\/","title":{"rendered":"Qu&rsquo;est-ce qu&rsquo;une ligne Groupe N ?"},"content":{"rendered":"<p style=\"text-align: justify;\">\u00c9l\u00e9ment<span style=\"color: #333333;\">\u00a0indispensable d\u2019une voiture de comp\u00e9tition rallye, la <strong>ligne d\u2019\u00e9chappement Groupe N<\/strong> permet d\u2019<strong>am\u00e9liorer la puissance<\/strong> du v\u00e9hicule par rapport \u00e0 une ligne d\u2019origine.<\/span><\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #ff6600;\">Groupe N\u00a0: Qu\u2019est-ce que c\u2019est\u00a0?<\/span><\/h2>\n<p><a href=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2018\/08\/Ligne-\u00e9chappement-REDSPEC-groupe-n.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-5133 \" src=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2018\/08\/Ligne-\u00e9chappement-REDSPEC-groupe-n-300x281.png\" srcset=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2018\/08\/Ligne-\u00e9chappement-REDSPEC-groupe-n-300x281.png 300w, https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2018\/08\/Ligne-\u00e9chappement-REDSPEC-groupe-n.png 390w, https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2018\/08\/Ligne-\u00e9chappement-REDSPEC-groupe-n-203x190.png 203w\" alt=\"Ligne-\u00e9chappement-REDSPEC-groupe-n\" width=\"226\" height=\"212\" data-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><span style=\"color: #333333;\">Les \u00ab\u00a0Groupe N\u00a0\u00bb sont des <strong>voitures de tourisme<\/strong> participant en comp\u00e9tition de rallye. Leur sp\u00e9cificit\u00e9 est la production d\u2019un minimum de 2500 v\u00e9hicules par an. Ces v\u00e9hicules de s\u00e9rie sont les plus accessibles aux amateurs de sport automobile. Chacune des modifications doivent prendre en compte la r\u00e9glementation FIA pour pouvoir concourir. La FIA autorise certaines transformations sur la ligne d\u2019\u00e9chappement des voitures de rallyes issues du Groupe N.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">Le Groupe N est divis\u00e9 en <strong>4 cat\u00e9gories<\/strong> de v\u00e9hicules\u00a0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #333333;\">N1 : jusqu&rsquo;\u00e0 1 400 cm\u00b3<\/span><\/li>\n<li><span style=\"color: #333333;\">N2 : de 1 400 \u00e0 1 600 cm\u00b3<\/span><\/li>\n<li><span style=\"color: #333333;\">N3 : de 1 600 \u00e0 2 000 cm\u00b3<\/span><\/li>\n<li><span style=\"color: #333333;\">N4 : plus de 2 000 cm\u00b3<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #ff6600;\">Caract\u00e9ristiques d\u2019une ligne d\u2019\u00e9chappement Groupe N<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\"><strong>La <a href=\"https:\/\/www.oreca-store.com\/moteur\/echappement\/ligne-echappement.html\" target=\"_blank\" rel=\"noopener\">ligne d\u2019\u00e9chappement Groupe N<\/a> se monte en lieu et place de la ligne d\u2019origine<\/strong>. Vendue en 1 \u00e0 3 parties selon les mod\u00e8les\u00a0: silencieux, silencieux et interm\u00e9diaire ou silencieux, interm\u00e9diaire et tube afrique, vous pouvez modifier la partie que vous souhaitez. Mais votre ligne doit \u00eatre compl\u00e8te, elle ne s\u2019assemble pas avec les pi\u00e8ces d\u2019origine.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">La ligne d\u2019\u00e9chappement a pour avantage d\u2019\u00eatre <strong>facile \u00e0 installer<\/strong> et de reprendre les diam\u00e8tres d\u2019origine de la ligne, g\u00e9n\u00e9ralement vendue avec les colliers serrages, ceux-ci garantissent une attache s\u00e9curis\u00e9e et fiable de votre ligne.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">L\u2019installation d\u2019une ligne d\u2019\u00e9chappement d\u00e9di\u00e9e au Groupe N permet une <strong>meilleure lib\u00e9ration des gaz d\u2019\u00e9chappement<\/strong>. En supprimant le catalyseur d&rsquo;origine, la ligne poss\u00e8de moins d&rsquo;obstacle. Ainsi, gr\u00e2ce aux parois lisses de la ligne, l\u2019\u00e9vacuation des gaz sera plus importante et permettra un gain de puissance imm\u00e9diate ainsi qu\u2019une am\u00e9lioration du couple. Cette am\u00e9lioration est surtout visible sur un moteur ayant subi des modifications.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">Remplacer sa ligne d\u2019origine par une ligne Groupe N permet un <strong>gain de poids consid\u00e9rable<\/strong> pour une voiture de rallye. Pour encore plus de l\u00e9g\u00e8ret\u00e9, le choix d\u2019une ligne en inox plut\u00f4t qu\u2019en acier sera pr\u00e9f\u00e9rable. De plus, l\u2019inox est plus r\u00e9sistant \u00e0 la corrosion.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">Enfin, la ligne d\u2019\u00e9chappement Groupe N permet une <strong>sonorit\u00e9 plus sportive<\/strong>, mais moins bruyante que le Groupe A. Si la sonorit\u00e9 reste trop importante, selon les mod\u00e8les, ORECA vend avec ses lignes un dB killer pour une baisse de la sonorit\u00e9 d\u2019environ 5dB.<\/span><\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #ff6600;\">R\u00e9glementation FIA Groupe N<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #333333;\">Les voitures de tourisme Groupe N peuvent modifier leur ligne d\u2019\u00e9chappement \u00e0 condition que celles-ci soient homologu\u00e9e FIA. Tr\u00e8s appr\u00e9ci\u00e9es par les fans de tuning, les lignes Groupe N sont pourtant exclusivement <strong>r\u00e9serv\u00e9es \u00e0 la comp\u00e9tition automobile<\/strong> et ne sont pas autoris\u00e9es sur route ouverte.<\/span><br \/><span style=\"color: #333333;\">A savoir : la FIA autorise un bruit allant jusqu\u2019\u00e0 98 \u00b12 dB maximum.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c9l\u00e9ment\u00a0indispensable d\u2019une voiture de comp\u00e9tition rallye, la ligne d\u2019\u00e9chappement Groupe N permet d\u2019am\u00e9liorer la puissance du v\u00e9hicule par rapport \u00e0 une ligne d\u2019origine. \u00a0 Groupe N\u00a0: Qu\u2019est-ce que c\u2019est\u00a0? Les \u00ab\u00a0Groupe N\u00a0\u00bb sont des voitures de tourisme participant en comp\u00e9tition de rallye. Leur sp\u00e9cificit\u00e9 est la production d\u2019un minimum de 2500 v\u00e9hicules par an. Ces [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[14,7],"tags":[],"class_list":["post-1540","post","type-post","status-publish","format-standard","hentry","category-moteur","category-tutoriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pourquoi installer une ligne Groupe N ?<\/title>\n<meta name=\"description\" content=\"La ligne d\u2019\u00e9chappement Groupe N homologu\u00e9e FIA est strictement r\u00e9serv\u00e9e \u00e0 la comp\u00e9tition automobile et non autoris\u00e9e sur route ouverte !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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