Quote:
Originally Posted by Boss330
Yes, there is a lot of confusion so far, but the quoted 80mm and 89,6mm measurements have been reported by Auto Motor und Sport as well as CAR, along with a description of the engine being oversquare, so they have obviously not just made a simple typo.
http://f80.bimmerpost.com/forums/sho...d.php?t=893611
The Engine Tech International article also mentions 80/89,6mm but has got it backwards and has the 80mm stated as the bore. That equates to a volume of 2,7l, so definitely not correct.
It either has a 80mm stroke and 89,6mm bore or a 89,6mm stroke and 84mm bore. From the photo I posted the bore is definitely larger than the stroke, but hard to verify as being correct due to angle of the engine on the photo etc. |
Good point about the possible reversal of bore and stroke in this article. It seems a bit strange though that Biermann doesn't use this to argue the difference to the 1M engine. It would put an end to any speculation of reuse and similarities. It could of course be that Autoweek is the only source here and that they have manufactured facts and quotes or just gotten them wrong which would surprise no one.