In shopping for a BMW, you might come across two engines that seem very close in name, but what makes them different? The N54 and N55 engines are two turbocharger options that have many similarities and differences. Follow along with us at Edmonton BMW as we go over what makes each of the N54 and N55 unique in the BMW lineup of engines.
N54 Engine Specifications
The turbochargers in each engine are the main difference, with the N54 having twin turbochargers and the N55 only having a single version of the twin turbocharger. Even with this difference, both engines still provide similar amounts of power and torque. The N54 also strives as the engine of the two that can most easily be modified, because of its twin design, which is more efficient through the amount of air that can move through it. While the N54 engine was introduced in 2006, it would soon be replaced by the N55 engine in 2011.
N55 Engine Specifications
As mentioned above, the N55 only has a single twin turbocharger. Because of the single twin’s ability to spool faster than the twin style of the N54, it’s able to provide its upper-echelon torque levels faster than its preceding engine model. Since the N55 engine came after the N54, it was able to clean up some outlying deficiencies of the previous engine. Namely, making it more reliable in fixing common errors, including ones to its fuel injectors. So, if you’re looking for the more dependable option, the N55 is it.
N54 or N55 engine?
Which is the better engine, the N54 or N55? It all depends on what you’re looking for out of your BMW and its engine. If you’re looking to modify your engine, the N54’s internal build makes it easier to mod. If reliability is more important to you in an engine, then the N55 is the engine for you. As both engines are very similar and perform near to the same level, these preceding differences are the main separations to keep in mind when making your decision.