{"product_id":"stage-1-s63-high-performance-engine-tu4-bmw-x5m-x6m","title":"Stage 1 S63 High Performance Engine (TU4) | BMW F9X X5M\/X6M","description":"\u003cp\u003eStage 1 S63 TU4 High Performance Engine: F95 X5M \u0026amp; F96 X6M\u003c\/p\u003e\n\u003cp data-end=\"494\" data-start=\"0\"\u003eThe CarBahn ST2 S63 engine is rated for up to 1,000 lb-ft of torque. It’s designed to improve durability for high-output tunes, making it an excellent alternative to an OEM factory remanufactured engine. We use high-quality racing components, including Carrillo connecting rods, forged CP pistons, high-performance valve springs, a high-performance head gasket, and cylinder head studs. The compression is lowered by 0.5 to maximize power for higher boost settings without risking detonation issues.\u003c\/p\u003e\n\u003cp data-end=\"991\" data-start=\"496\"\u003eThe CarBahn S63 engine is both stronger and more affordable than the BMW OEM factory engine, making it the perfect choice for BMW S63 performance enthusiasts. Steve Dinan's engine shop, with 46 years of experience, has built engines that have won numerous championships, including three prototype racing championships and two overall wins in the 24 Hours of Daytona (2011-2013). You won’t find a higher-quality engine from any other BMW tuning company. All engines come with a two-year warranty.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1187\" data-start=\"1102\"\u003eExperience the power and performance of S63 engine tuning at its finest with CarBahn.\u003c\/p\u003e\n\u003cp\u003eSteve Dinan has been building high performance and racing engines for BMW since 1977, winning 11 racing championships including 3 prototype championships and two 24 Hours of Daytona. The same engine shop that builds the racing engines also builds the street car engines. These talented engineers, machinists, and builders have built hundreds of engines from OEM street rebuilds to full-blown racing engines.\u003c\/p\u003e\n\u003cp\u003eFrom stock, the S63 engine is not designed for a large increase in boost. CarBahn has designed a high-performance engine to handle very high outputs by utilizing higher quality racing Carrillo connecting rods and forged CP pistons.\u003c\/p\u003e\n\u003cp\u003eFor our Stage 1 engines, high performance direct injection camshafts are reground to increase the stroke on the direct injection pump to increase fuel flow for higher boost levels. We also port and polish the cylinder heads.\u003c\/p\u003e\n\u003cp\u003eThe stock engine compression ratio is relatively high due to the Corporate Average Fuel Economy (CAFE) standards which push for consistently higher fuel economy in cars and trucks. However, this increased compression limits engine performance with higher boost settings by decreasing the size of the fuel-air charge in the combustion chamber, forcing the ignition timing to retard far below MBT (Mean Best Timing, the theoretical optimal ignition timing). Therefore, the Carbahn Autoworks S63 engine has 0.5 less compression to optimize the engine for the increased boost. In an emissions-legal street car, the lowered compression has the added benefit of reducing catalyst inlet temperatures and improved drive-ability on pump gas.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CarBahn","offers":[{"title":"Default Title","offer_id":52065127530818,"sku":"CB463-6002","price":25995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/3450\/8468\/files\/stage-1-s63_3f8ba05d-03d4-462e-9624-72fb169f5b06.jpg?v=1771396218","url":"https:\/\/europeanautosource.com\/products\/stage-1-s63-high-performance-engine-tu4-bmw-x5m-x6m","provider":"european auto source","version":"1.0","type":"link"}