{"id":147871,"date":"2026-04-23T11:20:56","date_gmt":"2026-04-23T16:20:56","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=147871"},"modified":"2026-04-23T13:31:44","modified_gmt":"2026-04-23T18:31:44","slug":"mercedes-sl-class-with-a-compound-turbo-om648","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=147871","title":{"rendered":"Mercedes SL-Class with a Compound-Turbo OM648 Diesel Inline-Six"},"content":{"rendered":"

\"Mercedes<\/a><\/p>\n

Black Smoke Racing<\/a> debuted a new project at the 2026 American Car Show<\/a> in Finland. The company started with a Mercedes SL-Class (R230<\/a>) and dramatically change the appearance with an AMG GT-R body kit. In the engine bay they swapped a compound-turbocharged 3.2 L OM648<\/a> inline-six. Garrett reports the compound-turbo system uses a G40-900 turbocharger and G47-1850 turbocharger. Black Smoke Racing cooled the charged air with a custom water-to-air intercooler with two cores and a custom air-to-air intercooler with three cores. They estimate this is enough cooling capacity for 7 bar (101 psi) of boost or 2500 hp (1838 kW). Behind the monster motor is a G-force dogbox and Winters quick-change rear end. Black Smoke Racing will be releasing more details on the project soon.<\/p>\n

\"front<\/a><\/p>\n

\"compound-turbo<\/a><\/p>\n

\"compound-turbo<\/a><\/p>\n

\"compound-turbocharger<\/a><\/p>\n

\"front<\/a><\/p>\n

\"rear<\/a><\/p>\n

\"rear<\/a><\/p>\n

\"wheel<\/a><\/p>\n

Source: Black Smoke Racing FB page<\/a> and Garrett FB page<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Black Smoke Racing debuted a new project at the 2026 American Car Show in Finland. The company started with a Mercedes SL-Class (R230) and dramatically change the appearance with an AMG GT-R body kit. In the engine bay they swapped a compound-turbocharged 3.2 L OM648 inline-six. Garrett reports the compound-turbo system uses a G40-900 turbocharger… Read More »Mercedes SL-Class with a Compound-Turbo OM648 Diesel Inline-Six<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":147873,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1342],"tags":[],"class_list":["post-147871","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-r230"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/Mercedes-SL-R230-with-a-Compound-Turbo-OM648-01.jpg?fit=1440%2C1152&ssl=1","jetpack-related-posts":[{"id":133242,"url":"https:\/\/engineswapdepot.com\/?p=133242","url_meta":{"origin":147871,"position":0},"title":"Carbon Fiber Mercedes Wagon Drifting at Gatebil with a 800 hp Turbodiesel Inline-Six","author":"swaptastic","date":"June 16, 2025","format":false,"excerpt":"Black Smoke Racing and their their Mercedes S123 attended Gatebil to prove their namesake. Snooken Recordings recorded the team putting on a show drifting the custom wagon. Black Smoke Racing built the wagon with a turbocharged 3.2 L Mercedes OM613\/OM648 diesel inline-six capable of 800 hp (596 kW) and 900\u2026","rel":"","context":"In "W123"","block_context":{"text":"W123","link":"https:\/\/engineswapdepot.com\/?cat=357"},"img":{"alt_text":"Carbon Fiber Mercedes wagon with a turbo 3.2 L diesel inline-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-15.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-15.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-15.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-15.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-15.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":123614,"url":"https:\/\/engineswapdepot.com\/?p=123614","url_meta":{"origin":147871,"position":1},"title":"Carbon Fiber Mercedes Wagon with a 800 hp Turbodiesel Inline-Six","author":"swaptastic","date":"November 20, 2024","format":false,"excerpt":"Black Smoke Racing built a unique Mercedes S123 at their company in Kokkola, Finland. The team was inspired by their 1981 Mercedes 300TD built 10 years ago. In the engine bay they installed a turbocharged 3.2 L Mercedes OM613\/OM648 diesel inline-six. The motor features forged internals, Peterson dry sump with\u2026","rel":"","context":"In "W123"","block_context":{"text":"W123","link":"https:\/\/engineswapdepot.com\/?cat=357"},"img":{"alt_text":"Mercedes S123 wagon with a turbo 3.2 L diesel inline-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/11\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-01.jpg?fit=1200%2C802&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/11\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-01.jpg?fit=1200%2C802&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/11\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-01.jpg?fit=1200%2C802&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/11\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-01.jpg?fit=1200%2C802&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/11\/Carbon-Fiber-Mercedes-wagon-with-a-turbo-3.2-L-diesel-inline-six-01.jpg?fit=1200%2C802&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":17460,"url":"https:\/\/engineswapdepot.com\/?p=17460","url_meta":{"origin":147871,"position":2},"title":"Black Smoke Racing Mercedes W203 Drift Wagon Update","author":"swaptastic","date":"August 10, 2017","format":false,"excerpt":"Since our previous article Black Smoke Racing has continued to develop their Mercedes W203 Wagon drift machine. 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