S55 Bmw. Weve seen when power is pushed beyond stock with stage 2 turbos or other modifications the rods can bend. The fact that the S55 was built atop the popular N55 mill was no surprise to those who have been following BMW.
Using the N55 as the base the S55 utilizes some impressive technology in order to generate class leading throttle response low CO2 emissions and a stratospheric 141 horsepower per liter of displacement. Power gains are substantial especially in the top end. 2011 BMW 535i xDrive Gran Turismo AWD Htchbck.
BMW The S55 30-liter twin-turbo inline six that powers the M3 and M4 is based on the N55 but heavily reengineered.
With a horsepower record of 1150hp to the wheels the S55 is the highest horsepower BMW engine to exist. 12999 18225 Hwy99 Lynnwood WA pic hide this posting restore restore this posting. Using the N55 as the base the S55 utilizes some impressive technology in order to generate class leading throttle response low CO2 emissions and a stratospheric 141 horsepower per liter of displacement. Nothing to be ashamed of for a little 30L inline-6.
