View Single Post
      03-04-2012, 10:30 PM   #16
J.
First Lieutenant
J.'s Avatar
Hong Kong
28
Rep
362
Posts

Drives: E90 320i, E36 M3
Join Date: Jul 2007
Location: Hong Kong

iTrader: (2)

Garage List
2007 335i  [0.00]
Quote:
Originally Posted by clarence View Post
Not all are the same. Before Nov 2011 it had a different block & turbo. After that it seems the same, but it may change later again.
Compression ratio is different (10:1 for 28i & 11:1 for 20i) for F10 & F30, but same for both models of x1.
What maybe happening is BMW is doing some sort of binning with these engines (i.e. if output is above official figures then it'll be a 28i, otherwise it'll be a 20i), after that they'll lock the power down for the 20i.
For me I'll not bother with the 320i as there's vitually no price difference between the 2 if u spec them the same, plus it comes with smaller brakes than the 328i.
I see the figures for BMWHK specs is that the 520i and 528i the compression is both at 11:1. Would it be the same in this matter?

I know there are probably also some differences in terms of brakes, and interior.

Quote:
Originally Posted by E90Fleet View Post
Yes,
different diff and different Gearbox to 328i
Also 28mm drive shafts against 35mm 328i shafts
Brakes are smaller too
The entire gearbox + driveshafts are different? even for 520i/528i?


Thanks for the much appreciated info everyone! This thread has given alot more information then what those "BMW salesman" has told me.
Appreciate 0