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320/4 specs needed
Posted: Sun Sep 28, 2014 11:02 am
by sparkle
Hi,
I have an E21 315, and have picked up a second hand engine out of an european automatic 320/4. Is anyone able to tell me some specs on this engine? Mainly wanting to know what compression ratio they are standard, as I've found conflicting information on the net.
Can get engine number if this helps.
Sparkle
Re: 320/4 specs needed
Posted: Sun Sep 28, 2014 11:16 am
by sparkle
engine number is 4260753
Re: 320/4 specs needed
Posted: Sun Sep 28, 2014 11:58 am
by Jeroen
Oct 76 M10B20 indeed. We have all the factory info up here
http://www.bmwe21.net/?page_id=295
Re: 320/4 specs needed
Posted: Mon Oct 06, 2014 3:58 am
by sparkle
Hi,
I have found conflicting information on the internet.
Were 320i the only 2ltr m10s in an E21 above 9:1 compression?
Were all 320, including Euro/US specs 8.1:1?
Re: 320/4 specs needed
Posted: Mon Oct 06, 2014 8:34 am
by Jeroen
The E21's equipped with M10B20 all appear to have a CR of 8.1:1 indeed. Unless someone else has different info?!
I can have a look if I have any other data but the info on my specs pages was all taken from official BMW specs lists. Please note that for example the 2 litre M10 from the 2002 is a different engine with a different CR.
Re: 320/4 specs needed
Posted: Tue Oct 07, 2014 9:37 pm
by 3771489
Jeroen wrote:The E21's equipped with M10B20 all appear to have a CR of 8.1:1 indeed. Unless someone else has different info?!
I can have a look if I have any other data but the info on my specs pages was all taken from official BMW specs lists. Please note that for example the 2 litre M10 from the 2002 is a different engine with a different CR.
320i (euro) 9.3:1
http://www.bmwe21.net/?page_id=295
Re: 320/4 specs needed
Posted: Tue Oct 07, 2014 9:38 pm
by Jeroen
You are oh so right!
