BMW develops its most powerful four-cylinder yet
aerobd.news : Developed by the BMW M Performance team, the new 305ps 2.0-liter TwinPower turbocharged engine aims to set a new benchmark in four-cylinder power and torque delivery for the BMW Brand. The 2.0 liter TwinPower Turbo engine is the very first M Performance four-cylinder engine (not to be confused with BMW M) and the company’s most powerful production four-cylinder version yet. It delivers a maximum power output of 305ps between 5,000rpm and 6,250rpm. Maximum torque is 450Nm between 1,750rpm and 4,500rpm.
To achieve this level of performance, BMW M has left almost no major engine component group untouched. The crankshaft has been reinforced and features larger main bearings. New pistons with a slightly reduced compression ratio of 9.5:1 allow for a larger turbocharger and increased boost. The intake airflow tract has also been improved for higher flow. The cooling system has been upgraded to complement the increased vehicle capabilities.
The all-new four-cylinder unit will from the heart of BMW’s 2019 X2 M35i. And to ensure that the engine can put its power on to the road it is paired with an 8-speed automatic transmission. For the first time ever, a front axle BMW M Sport Differential makes its appearance and features Torsen-based limited slip capabilities with up to a 39% lock-up. The new M Sport differential is integrated into the 8-speed automatic transmission which itself features steering wheel shift paddles, M Performance specific tuning, additional transmission cooling and updated gear ratios. The BMW X2 M35i is capable of accelerating from 0-100km/h in 4.9 seconds.
source : Engine Technology International