{"id":43591,"date":"2019-07-27T16:55:15","date_gmt":"2019-07-27T21:55:15","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=43591"},"modified":"2019-07-27T16:55:15","modified_gmt":"2019-07-27T21:55:15","slug":"1991-porsche-964-rsr-with-a-twin-turbo-3-8-l-flat-six","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=43591","title":{"rendered":"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43592\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43592\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?fit=1000%2C666&amp;ssl=1\" data-orig-size=\"1000,666\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 01\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?fit=1000%2C666&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?resize=600%2C400&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"400\" class=\"alignnone size-medium wp-image-43592\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>This 1991 Porsche 964 RSR was built by <a href=\"https:\/\/patrickmotorsports.com\/\">Patrick Motorsports<\/a> in Phoenix, Arizona. The engine is a twin-turbo flat-six from a Porsche 993 increased to 3.8 liters. It made 540 horsepower to the wheels on low boost from two K24 turbochargers and 91 octane fuel. The engine features Mahle pistons and cylinders, Pauter connecting rods, GT2 Sport camshafts, custom 321 SS headers, and MoTeC M600 ECU. Power is sent to the wheels through a 993 six-speed transaxle with a Wavetrac limited-slip differential. <\/p>\n<p><iframe loading=\"lazy\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/5kEoUQx52fE\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43593\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43593\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?fit=1000%2C666&amp;ssl=1\" data-orig-size=\"1000,666\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 02\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?fit=1000%2C666&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?resize=600%2C400&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"400\" class=\"alignnone size-medium wp-image-43593\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-02.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43594\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43594\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?fit=1000%2C979&amp;ssl=1\" data-orig-size=\"1000,979\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 03\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?fit=1000%2C979&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?resize=600%2C587&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"587\" class=\"alignnone size-medium wp-image-43594\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?resize=600%2C587&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?resize=768%2C752&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-03.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43595\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43595\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?fit=1000%2C831&amp;ssl=1\" data-orig-size=\"1000,831\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 04\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?fit=1000%2C831&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?resize=600%2C499&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"499\" class=\"alignnone size-medium wp-image-43595\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?resize=600%2C499&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?resize=768%2C638&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-04.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43596\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43596\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?fit=1000%2C562&amp;ssl=1\" data-orig-size=\"1000,562\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 05\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?fit=1000%2C562&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?resize=600%2C337&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"337\" class=\"alignnone size-medium wp-image-43596\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?resize=600%2C337&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-05.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43597\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43597\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?fit=1000%2C674&amp;ssl=1\" data-orig-size=\"1000,674\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 06\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?fit=1000%2C674&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?resize=600%2C404&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"404\" class=\"alignnone size-medium wp-image-43597\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?resize=600%2C404&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?resize=768%2C518&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-06.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43598\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43598\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?fit=1000%2C979&amp;ssl=1\" data-orig-size=\"1000,979\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 07\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?fit=1000%2C979&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?resize=600%2C587&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"587\" class=\"alignnone size-medium wp-image-43598\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?resize=600%2C587&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?resize=768%2C752&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-07.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43599\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43599\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?fit=1000%2C831&amp;ssl=1\" data-orig-size=\"1000,831\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 08\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?fit=1000%2C831&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?resize=600%2C499&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"499\" class=\"alignnone size-medium wp-image-43599\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?resize=600%2C499&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?resize=768%2C638&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-08.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43600\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43600\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?fit=1000%2C831&amp;ssl=1\" data-orig-size=\"1000,831\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 09\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?fit=1000%2C831&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?resize=600%2C499&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"499\" class=\"alignnone size-medium wp-image-43600\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?resize=600%2C499&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?resize=768%2C638&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-09.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43601\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43601\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?fit=1000%2C831&amp;ssl=1\" data-orig-size=\"1000,831\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 10\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?fit=1000%2C831&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?resize=600%2C499&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"499\" class=\"alignnone size-medium wp-image-43601\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?resize=600%2C499&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?resize=768%2C638&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-10.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"43602\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=43602\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?fit=1000%2C831&amp;ssl=1\" data-orig-size=\"1000,831\" data-comments-opened=\"1\" data-image-title=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six 11\" data-image-description=\"&lt;p&gt;1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?fit=1000%2C831&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?resize=600%2C499&#038;ssl=1\" alt=\"1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six\" width=\"600\" height=\"499\" class=\"alignnone size-medium wp-image-43602\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?resize=600%2C499&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?resize=768%2C638&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-11.jpg?w=1000&amp;ssl=1 1000w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>Source: <a href=\"https:\/\/patrickmotorsports.com\/blogs\/964\/1991-964-rsr-twin-turbo\">Patrick Motorsports<\/a> (project page)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This 1991 Porsche 964 RSR was built by Patrick Motorsports in Phoenix, Arizona. The engine is a twin-turbo flat-six from a Porsche 993 increased to 3.8 liters. It made 540 horsepower to the wheels on low boost from two K24 turbochargers and 91 octane fuel. The engine features Mahle pistons and cylinders, Pauter connecting rods,&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=43591\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">1991 Porsche 964 RSR with a Twin-Turbo 3.8 L Flat-Six<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":43592,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"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,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[900],"tags":[],"class_list":["post-43591","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-964-porsche"],"jetpack-related-posts":[{"id":144714,"url":"https:\/\/engineswapdepot.com\/?p=144714","url_meta":{"origin":43591,"position":0},"title":"Porsche 964 with a Twin-Turbo 993 Motor Racing N\u00fcrburgring&#8217;s GP Strecke","author":"swaptastic","date":"January 30, 2026","format":false,"excerpt":"Mike Torwesten from Torwesten Racing and their Porsche 935 race car attended the N\u00fcrburgring 24 Hours for the Touring Car Legends on the GP Strecke circuit layout. Mike retired from Race 1 requiring him start in 38th place in Race 2. Mike finished with the class win and overall win.\u2026","rel":"","context":"In &quot;964&quot;","block_context":{"text":"964","link":"https:\/\/engineswapdepot.com\/?cat=693"},"img":{"alt_text":"Porsche 964 race car with a twin-turbo 993 flat-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/01\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-12.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/01\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-12.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/01\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-12.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/01\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-12.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/01\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-12.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":130478,"url":"https:\/\/engineswapdepot.com\/?p=130478","url_meta":{"origin":43591,"position":1},"title":"Porsche 964 with a Twin-Turbo 993 Motor","author":"swaptastic","date":"April 15, 2025","format":false,"excerpt":"Torwesten Racing owns and races a special Porsche 911. NM2255 reports the car started life as a 1989 Porsche 964 RSR and now is powered by twin-turbo 3.6 L flat-six from a Porsche 993 GT2 EVO. The motor produces 540 hp (397 kW) and 660 Nm (486 lb-ft) of torque\u2026","rel":"","context":"In &quot;964&quot;","block_context":{"text":"964","link":"https:\/\/engineswapdepot.com\/?cat=693"},"img":{"alt_text":"Porsche 964 race car with a twin-turbo 993 flat-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":138606,"url":"https:\/\/engineswapdepot.com\/?p=138606","url_meta":{"origin":43591,"position":2},"title":"Porsche 964 with a Twin-Turbo 993 Motor","author":"swaptastic","date":"September 24, 2025","format":false,"excerpt":"Mike Torwesten from Torwesten Racing and his Porsche 935 race car visited TT Circuit Assen in Assen, Drenthe, Netherlands. Mike finished first but contact with another car resulted in a penalty and 2nd place. The 935 started as a 1989 Porsche 964 RSR now powered by a twin-turbo 3.6 L\u2026","rel":"","context":"In &quot;964&quot;","block_context":{"text":"964","link":"https:\/\/engineswapdepot.com\/?cat=693"},"img":{"alt_text":"Porsche 964 race car with a twin-turbo 993 flat-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-09.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-09.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-09.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-09.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/Porsche-964-race-car-with-a-twin-turbo-993-flat-six-09.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":150799,"url":"https:\/\/engineswapdepot.com\/?p=150799","url_meta":{"origin":43591,"position":3},"title":"1984 Porsche 911 with a 3.6 L Flat-Six","author":"swaptastic","date":"July 10, 2026","format":false,"excerpt":"Kinninger Racing built this 1984 Porsche 911 Carrera with a 3.6 L flat-six from a 1991 Porsche 964. The motor uses 964 pistons and cylinders, 993 Super Sport profile camshafts, Aasse spring and retainers, ported heads, and B&B exhaust headers. In front of that is a Centerforce clutch and 915\u2026","rel":"","context":"In &quot;911&quot;","block_context":{"text":"911","link":"https:\/\/engineswapdepot.com\/?cat=103"},"img":{"alt_text":"front-side view of a silver backdated 1984 Porsche 911","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/07\/1984-Porsche-911-with-a-3.6-L-flat-six-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/07\/1984-Porsche-911-with-a-3.6-L-flat-six-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/07\/1984-Porsche-911-with-a-3.6-L-flat-six-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/07\/1984-Porsche-911-with-a-3.6-L-flat-six-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/07\/1984-Porsche-911-with-a-3.6-L-flat-six-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":64683,"url":"https:\/\/engineswapdepot.com\/?p=64683","url_meta":{"origin":43591,"position":4},"title":"Porsche 911 with a Twin-Turbo 3.8 L Flat-Six","author":"swaptastic","date":"December 11, 2020","format":false,"excerpt":"This 1975 Porsche 911S was built by Patrick Motorsports in Phoenix, Arizona. The car is powered by a twin-turbo 3.8 L flat-six making 558 horsepower to the wheels. The company started with a 3.6 L M64\/01 flat-six from a Porsche 964 and increased the displacement to 3.8 liters. They also\u2026","rel":"","context":"In &quot;911&quot;","block_context":{"text":"911","link":"https:\/\/engineswapdepot.com\/?cat=103"},"img":{"alt_text":"1975 Porsche 911 with a twin-turbo 3.8 L flat-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1975-Porsche-911-with-a-twin-turbo-3.8-L-flat-six-01.jpg?fit=1200%2C798&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1975-Porsche-911-with-a-twin-turbo-3.8-L-flat-six-01.jpg?fit=1200%2C798&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1975-Porsche-911-with-a-twin-turbo-3.8-L-flat-six-01.jpg?fit=1200%2C798&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1975-Porsche-911-with-a-twin-turbo-3.8-L-flat-six-01.jpg?fit=1200%2C798&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1975-Porsche-911-with-a-twin-turbo-3.8-L-flat-six-01.jpg?fit=1200%2C798&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":49387,"url":"https:\/\/engineswapdepot.com\/?p=49387","url_meta":{"origin":43591,"position":5},"title":"Porsche 993 Race Car with a 3.8 L Flat-Six","author":"swaptastic","date":"November 29, 2019","format":false,"excerpt":"This Porsche 993 race car is for sale at Patrick Motorsports in Phoenix, Arizona. The project started with a 1995 Porsche 993 Cabriolet which suffered an interior fire. The company stripped it down to the shell, installed a 993 GT2 fiberglass body kit, and coated it in Porsche 1993-94 Maritime\u2026","rel":"","context":"In &quot;993&quot;","block_context":{"text":"993","link":"https:\/\/engineswapdepot.com\/?cat=669"},"img":{"alt_text":"Porsche 993 Race Car with a 3.8 L Flat-Six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/11\/Porsche-993-Race-Car-with-a-3.8-L-Flat-Six-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/11\/Porsche-993-Race-Car-with-a-3.8-L-Flat-Six-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/11\/Porsche-993-Race-Car-with-a-3.8-L-Flat-Six-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/11\/Porsche-993-Race-Car-with-a-3.8-L-Flat-Six-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/11\/Porsche-993-Race-Car-with-a-3.8-L-Flat-Six-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2019\/07\/1991-Porsche-964-RSR-with-a-Twin-Turbo-3.8-L-Flat-Six-01.jpg?fit=1000%2C666&ssl=1","_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/43591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=43591"}],"version-history":[{"count":3,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/43591\/revisions"}],"predecessor-version":[{"id":43605,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/43591\/revisions\/43605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/43592"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=43591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}