Full BMW N20 turbo 4 cylinder technical specifications plus history, overview, and N52 comparison
The document posted below is the full BMW N20 technical training document and it is incredibly in depth. If anyone wanted any and all information on the new N20 direct injected turbo 4 cylinder, here you go. It is a long but interesting read as BMW provides the history as well stating this is the first 4 cylinder sold in the United States since the M44 4 cylinder which was last seen in 1999. Another interesting tidbit is that BMW began producing 4 cylinders in 1927 with the 3/15. Hey, may be useful for trivia one day.
On page 4 there is a very interesting comparison between the N20 and N52 which is the motor being replaced. The N52 is shown putting out more power but the N20 has substantially more power down low. Great to see the two different approaches overlaid on a graph. Page 5 shows why we are seeing the N20 now and all one needs to do is look at the fuel consumption and emissions to understand why.
A great read for BMW geeks and a really well done document on the part of BMW.