{"id":55583,"date":"2026-11-06T07:40:15","date_gmt":"2026-11-06T06:40:15","guid":{"rendered":"https:\/\/www.italpassion.fr\/?p=55583"},"modified":"2026-10-29T11:00:33","modified_gmt":"2026-10-29T10:00:33","slug":"este-preparador-descubre-que-es-lo-que-limita-la-potencia-del-motor-de-20-l-y-4-cilindros-del-alfa-romeo-que-alcanza-los-412-ch-en-lugar-de-los-280-ch","status":"publish","type":"post","link":"https:\/\/www.italpassion.fr\/es\/alfa-romeo\/ce-preparateur-decouvre-ce-qui-bride-le-moteur-2-0l-4-cylindres-de-lalfa-romeo-412-ch-au-lieu-de-280-ch\/","title":{"rendered":"Este preparador descubre qu\u00e9 limita la potencia del motor de 2,0 L y 4 cilindros del Alfa Romeo\u2026 412 CV en lugar de 280 CV"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-0.jpg\" alt=\"\" class=\"wp-image-55591\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-0.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-0-420x280.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-0-18x12.jpg 18w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-0-768x512.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u00bfHasta d\u00f3nde se puede llevar el motor turbo de 2,0 L del\u2019<a href=\"https:\/\/www.italpassion.fr\/es\/coches\/alfa-romeo-giulia\/\">Alfa Romeo Giulia<\/a> ? Aunque la versi\u00f3n Veloce desarrolla de serie 280 ch, algunos preparadores est\u00e1n decididos a demostrar que este motor italiano de cuatro cilindros a\u00fan tiene un buen margen de mejora. En los Pa\u00edses Bajos, JTD-Performance acaba de dar un nuevo paso adelante al anunciar 412 CV. Y lo m\u00e1s interesante es la forma en que se ha conseguido esta potencia.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">De 280 a 365 CV: una primera versi\u00f3n ya de por s\u00ed impresionante<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Todo empieza con un Alfa Romeo Giulia Veloce 2.0 turbo de serie. El preparador holand\u00e9s JTD-Performance lleva a cabo, en primer lugar, una reprogramaci\u00f3n electr\u00f3nica realizada con Squadra Tuning. Resultado: unos 310 CV y 470 Nm de par. Una preparaci\u00f3n bastante conocida entre los propietarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pero el equipo no piensa quedarse ah\u00ed. A continuaci\u00f3n, instala un turbo h\u00edbrido 2263, un intercambiador de calor adicional para mejorar la refrigeraci\u00f3n, un tubo de bajada con catalizador de 200 celdas, as\u00ed como un sistema de escape Ragazzon con silenciador trasero con v\u00e1lvulas. Una nueva programaci\u00f3n del motor y la caja de cambios permite alcanzar unos 365 CV y 490 Nm. Una potencia ya respetable para este cuatro cilindros, pero JTD-Performance quiere ir m\u00e1s all\u00e1. El problema es que, al igual que muchos otros preparadores, la empresa se topa con un l\u00edmite que oscila entre los 360 y los 370 CV.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-giulia.jpg\" alt=\"\" class=\"wp-image-55587\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-giulia.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-giulia-420x280.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-giulia-18x12.jpg 18w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-giulia-768x512.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">El secreto de los 412 CV se escond\u00eda en el turbo<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para comprender qu\u00e9 es lo que limita la potencia, JTD-Performance equipa su Giulia con varios sensores e instrumentos de medici\u00f3n suministrados por el especialista estadounidense Banks Power. Estos equipos permiten, entre otras cosas, analizar las temperaturas y las presiones de los gases de escape, con el fin de identificar los elementos que limitan el rendimiento del motor, adem\u00e1s de un sistema de adquisici\u00f3n de datos de Squadra Tuning.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"580\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-4.jpg\" alt=\"\" class=\"wp-image-55589\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-4.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-4-420x203.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-4-768x371.jpg 768w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-4-18x9.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Los resultados revelan un problema de contrapresi\u00f3n en el escape. El turbo h\u00edbrido de doble espiral (<em>twin-scroll<\/em>) genera una presi\u00f3n excesiva antes de la turbina, lo que merma el rendimiento del motor a altas revoluciones. El preparador decide entonces sustituir por completo el turbo por un modelo de mayor tama\u00f1o, de espiral simple (<em>mono-scroll<\/em>).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"881\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-3.jpg\" alt=\"\" class=\"wp-image-55588\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-3.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-3-420x308.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-3-767x563.jpg 767w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-3-16x12.jpg 16w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">JTD-Performance ha cortado la carcasa del antiguo turbo h\u00edbrido para dejar al descubierto la pared interna que reduce la secci\u00f3n de paso de los gases de escape hacia la turbina. Una restricci\u00f3n que contribu\u00eda a limitar la potencia del motor de 2,0 L del Alfa Romeo Giulia.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"876\" height=\"1200\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-mono-vs-twin-876x1200-1.jpg\" alt=\"\" class=\"wp-image-55586\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-mono-vs-twin-scaled-1.jpg 876w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-mono-vs-twin-307x420-1.jpg 307w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-mono-vs-twin-9x12-1.jpg 9w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-mono-vs-twin-768x1052-1.jpg 768w\" sizes=\"auto, (max-width: 876px) 100vw, 876px\" \/><figcaption class=\"wp-element-caption\">Arriba, el nuevo turbo mono-scroll con su entrada despejada. Abajo, el antiguo turbo h\u00edbrido twin-scroll, cuya pared central reduce la secci\u00f3n de paso de los gases de escape. Una diferencia que ayuda a explicar el aumento de potencia conseguido por JTD-Performance.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"693\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-2.jpg\" alt=\"\" class=\"wp-image-55585\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-2.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-2-420x243.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-2-767x443.jpg 767w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">Turbo <em>twin-scroll<\/em> vs. Turbo mono-scroll<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u00a1Y los resultados son inmediatos! Sin necesidad siquiera de modificar la cartograf\u00eda del motor, la presi\u00f3n a la entrada de la turbina disminuye en aproximadamente 0,5 bar y la potencia aumenta en unos cuarenta caballos. Las mediciones tambi\u00e9n muestran una mejora de 13,6 puntos porcentuales en la relaci\u00f3n de barrido de los cilindros, lo que permite al motor evacuar mejor los gases de escape. <strong>Resultado: 412 CV, \u00a1lo que supone 132 CV m\u00e1s que el Giulia Veloce original!<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"662\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo.jpg\" alt=\"\" class=\"wp-image-55584\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-420x232.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-18x10.jpg 18w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/turbo-767x423.jpg 767w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Un Giulia que alcanza las 6.600 rpm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Esta nueva configuraci\u00f3n tambi\u00e9n modifica el car\u00e1cter del motor. El par llega ahora unos 500 rpm m\u00e1s tarde, pero, a diferencia de la preparaci\u00f3n anterior, la potencia ya no decae a altas revoluciones. Sigue aumentando hasta alcanzar los 412 CV a unos 6 300 rpm, y se mantiene por encima de los 400 CV hasta las 6 600 rpm, r\u00e9gimen en el que se ha fijado el limitador. Unos d\u00edas antes de dar a conocer estos resultados, JTD-Performance hab\u00eda publicado, por cierto, un impresionante v\u00eddeo de la aceleraci\u00f3n de su Giulia, en particular hasta los 200 km\/h.<\/p>\n\n\n\n<iframe loading=\"lazy\" src=\"https:\/\/www.facebook.com\/plugins\/video.php?height=315&#038;href=https%3A%2F%2Fwww.facebook.com%2Freel%2F1122595093969862%2F&#038;show_text=false&#038;width=560&#038;t=0\" width=\"560\" height=\"315\" style=\"border:none;overflow:hidden\" scrolling=\"no\" frameborder=\"0\" allowfullscreen=\"true\" allow=\"autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share\"><\/iframe>\n\n\n\n<h2 class=\"wp-block-heading\">\u00a1Y ahora, el objetivo son los 420 CV!<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No es el primer Giulia de cuatro cilindros que supera la barrera de los 400 CV. De hecho, ya hab\u00edamos presentado un Giulia de competici\u00f3n brit\u00e1nico <a href=\"https:\/\/www.italpassion.fr\/es\/alfa-romeo\/un-nuevo-alfa-romeo-giulia-acaba-de-incorporarse-a-la-competicion-con-un-motor-de-4-cilindros-que-desarrolla-430-ch-y-un-aspecto-al-estilo-gta\/\">con una potencia de 430 CV<\/a>, as\u00ed como una <a href=\"https:\/\/www.italpassion.fr\/es\/alfa-romeo\/este-americano-pone-un-gran-turbo-en-su-alfa-romeo-giulia-y-pierde-en-la-autopista-alemana-rivaliza-con-el-bmw-m340i-audi-s4-y-mercedes-amg-c43\/\">preparaci\u00f3n estadounidense<\/a> equipada con un turbo grande.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pero el trabajo de JTD-Performance resulta especialmente interesante por su enfoque t\u00e9cnico y la gran cantidad de datos que comparte. Y la historia no ha terminado a\u00fan. El preparador considera que a\u00fan se pueden optimizar algunos elementos y ahora tiene como objetivo <strong>420 CV<\/strong>. \u00a1Esto acerca un poco m\u00e1s a este Giulia Veloce a las prestaciones de su hermana mayor, el Quadrifoglio, que cuenta con 510 CV gracias a su motor V6 biturbo!<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"771\" src=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance.jpg\" alt=\"\" class=\"wp-image-55590\" srcset=\"https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance.jpg 1200w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-420x270.jpg 420w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-18x12.jpg 18w, https:\/\/www.italpassion.fr\/wp-content\/uploads\/2026\/10\/jtd-performance-767x493.jpg 767w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":55591,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[22],"tags":[288],"class_list":["post-55583","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alfa-romeo","tag-alfa-romeo-giulia","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ce pr\u00e9parateur d\u00e9couvre ce qui bride le moteur 2.0L 4 cylindres de l\u2019Alfa Romeo... 412 ch au lieu de 280 ch - ItalPassion<\/title>\n<meta name=\"description\" content=\"Jusqu&#039;o\u00f9 peut-on pousser le moteur 2.0L turbo de l&#039;Alfa Romeo Giulia ? Alors que la version Veloce d\u00e9veloppe 280 ch d&#039;origine, certains pr\u00e9parateurs sont\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.italpassion.fr\/es\/alfa-romeo\/este-preparador-descubre-que-es-lo-que-limita-la-potencia-del-motor-de-20-l-y-4-cilindros-del-alfa-romeo-que-alcanza-los-412-ch-en-lugar-de-los-280-ch\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ce pr\u00e9parateur d\u00e9couvre ce qui bride le moteur 2.0L 4 cylindres de l\u2019Alfa Romeo... 412 ch au lieu de 280 ch - ItalPassion\" \/>\n<meta property=\"og:description\" content=\"Jusqu&#039;o\u00f9 peut-on pousser le moteur 2.0L turbo de l&#039;Alfa Romeo Giulia ? 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