Quote:
Originally Posted by Ove
I'm also interested in knowing this! I'm trying to decide if i should change the software of my f22 220i so that i could get 270 hp.
Also is there any mechanical differences between the 20i and the 28i versions of the engine?
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270 is not a problem. With the right fuel it's capable of easily reaching 330/350 hp. Sometimes even more. But at that power level, reliability may be a concern, specially considering the 20is run way leaner than the 28is. Also, on the 20is ignition advance curve is steeper. +15 degrees is common.
No differences besides compression ratio depending on the country the car is sold.