If some reports are to be believed, BMW will be introducing an all-new diesel engine for its 2016 7-Series saloon. BMW has been using a tri-turbo diesel motor is quite a few of their performance diesel cars such as the X5 M50d. However, now the German carmaker is stepping up the ante, and is apparently developing a quad-turbo oil burner.
Codenamed the B57 TOP, this quad-turbo mill will replace the outgoing tri-turbo unit. One of the biggest advantages of this new diesel engine will likely be in the unit’s response time to throttle inputs. Another gain will be seen in the torque spread of this motor, again, courtesy of that fourth turbocharger.
BMW hasn’t revealed any details on this new powerplant. Having said that, certain reports claim that this quad-turbo engine will dish out (at least) 400bhp of power and the torque figure is expected to peak at 800 Nm! Forced induction can do wonderful things to an internal combustion engine. Just like with the outgoing tri-turbo engine, this quad-turbo powerplant will only be paired to BMW’s xDrive all-wheel drive models. This diesel engine will eventually find its way to some M Division cars such as the M550d G30 / G31 and in BMW X5, X6 and the upcoming X7 M50d.
Source – Bimmer Today