{"id":85480,"date":"2026-05-07T11:55:15","date_gmt":"2026-05-07T15:55:15","guid":{"rendered":"https:\/\/autosector.com\/?p=85480"},"modified":"2026-05-07T11:55:15","modified_gmt":"2026-05-07T15:55:15","slug":"bmw-m-upgrades-inline-six-engine-new-ignition-process","status":"publish","type":"post","link":"http:\/\/autosector.com\/?p=85480","title":{"rendered":"BMW M Upgrades Inline-Six Engine With Pre-Chamber Ignition Process"},"content":{"rendered":"<section class=\"post-summary-wrap\">\n<h3 class=\"post-summary-title\">Article Summary<\/h3>\n<ul class=\"post-summary-list\">\n<li>The updated twin-turbo 3.0-liter engine is coming to the M2, M3, and M4 this year.<\/li>\n<li>BMW slashes fuel consumption without any performance loss as the power figures remain unchanged.<\/li>\n<li>The six-cylinder engine complies with the Euro 7 standard, which comes into force in November.<\/li>\n<\/ul>\n<\/section>\n<p>A few years back, M promised to safeguard the inline-six\u2019s future even under the EU\u2019s draconian emissions legislation. With Euro 7 around the corner, BMW\u2019s high-performance division is living up to that pledge. The \u201cS58\u201d used by the M2, M3, and M4 has a bright future after a new engine technology patented in 2024 is about to make its way into production cars.<\/p>\n<p>BMW M Ignite is marketing jargon for a pre-chamber ignition system derived from motorsport. Going forward, the twin-turbo 3.0-liter engine will feature a pre-chamber located within the cylinder head. It\u2019s linked to the cylinder\u2019s main combustion chamber through overflow openings, and since the pre-chamber has its own spark plug and ignition coil, the six-cylinder now features two ignition systems.<\/p>\n<p>How does it work? When engine revs are low to medium, the traditional spark plug in the combustion chamber fires before the one in the pre-chamber. At higher revs, the newly added spark plug in the pre-chamber plays a bigger role. A portion of the fuel-air mixture flowing through the openings into the pre-chamber is also ignited. BMW claims the resulting flames exit the pre-chamber at \u201caround the speed of sound.\u201d<\/p>\n<p><a href=\"https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-513186\" title=\"BMW M IGNITE TECH FOR INLINE SIX ENGINE 5\" src=\"https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-830x467.jpg\" alt=\"BMW M IGNITE TECH FOR INLINE SIX ENGINE 5\" width=\"830\" height=\"467\" srcset=\"https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-830x467.jpg 830w, https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-1820x1024.jpg 1820w, https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-768x432.jpg 768w, https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-1536x864.jpg 1536w, https:\/\/cdn.bmwblog.com\/wp-content\/uploads\/2026\/05\/BMW-M-Ignite-Tech-for-Inline-Six-Engine-5-2048x1152.jpg 2048w\" sizes=\"(max-width: 830px) 100vw, 830px\"\/><\/a><\/p>\n<p>Since the ignition jets ignite the mixture in the main combustion chamber above the piston at multiple points simultaneously, combustion happens much faster. Coupled with a higher compression ratio and turbochargers featuring variable turbine geometry, fuel efficiency improves significantly. These gains will be particularly noticeable when the vehicle is under heavy loads, such as on a circuit.<\/p>\n<p>The M3 and M4 models are the first to benefit from BMW M Ignite, with production kicking off in July. The smaller M2 will follow a month later, ahead of Euro 7\u2019s implementation in November. You\u2019ll be happy to hear the lower fuel consumption doesn\u2019t come at the expense of performance. The S58 continues to deliver the same power as before, which we sadly can\u2019t say about the larger S68.<\/p>\n<h3>BMW M\u2019s Inline-Six Engine Keeps All Horses, But The V8 Is Detuned<\/h3>\n<p>As a refresher, BMW dialed down the twin-turbo 4.4-liter V8 used by the M5 and XM in Europe. Since March, the gas engine makes <a href=\"https:\/\/www.bmwblog.com\/2026\/01\/28\/bmw-m5-v8-engine-loses-power-europe\/\">41 fewer ponies<\/a> to comply with Euro 7, but it\u2019s not all bad news. The electric motor in the sedan\/wagon and SUV is more powerful than before, fully offsetting the eight-cylinder engine\u2019s output drop. Consequently, the V8-powered models retain their unchanged combined muscle, but the electric motor now plays a bigger role than before. Outside Europe and other markets that don\u2019t follow EU directives, the <a href=\"https:\/\/www.bmwblog.com\/2026\/02\/01\/bmw-will-not-detune-v8-engine-united-states\/\">V8 remains unchanged<\/a>.<\/p>\n<p>Having made both the inline-six and V8 engines Euro 7-compliant, BMW can continue selling M cars in the EU for many years to come. Future models are expected to include the next-generation M3 (G84) on the six-cylinder side and the X5 M (G95) on the eight-cylinder side. Additionally, the S68 will also live on in M Performance models, such as next year\u2019s <a href=\"https:\/\/www.bmwblog.com\/2026\/04\/22\/bmw-confirms-v8-power-for-new-7-series\/\">M760<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Article Summary The updated twin-turbo 3.0-liter engine is coming to the M2, M3, and M4 this year. BMW slashes fuel consumption without any performance loss as the power figures remain unchanged. The six-cylinder engine complies with the Euro 7 standard, which comes into force in November. A few years back, M promised to safeguard the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":85481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[],"class_list":["post-85480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry"],"_links":{"self":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts\/85480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85480"}],"version-history":[{"count":0,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts\/85480\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/media\/85481"}],"wp:attachment":[{"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85480"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}