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E21 (1975 - 1983)

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Old 10-04-2013, 04:04 AM
Gruppe Zwei Gruppe Zwei is offline
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Location: Denmark
Join Date: Sep 2013
Posts: 5
Mein Auto: E21 320-6
m20b25 into 320-6 info needed


I am about to do a engine swap in my E21 320-6. The 320-6 as you know are carburettor fed so there is next to no electronics in the car.

I have a 100% complete m20b25 arriving tomorrow morning that i want to put in.

Now the nuts and bolts job are not an issue. What i am concerned about is the electric stuff.

How do i wire up the new lump so it will run ?

If anyone know of some schematics, or simplified drawings of what goes where i would love to get a heads up


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Old 03-02-2015, 07:50 PM
akstewie84 akstewie84 is offline
Location: Alaska
Join Date: Feb 2015
Posts: 6
Mein Auto: 81 320/6 2.0L
Did you ever get any info on your swap? Im wanting to wire up a m50 motor into mine.
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Old 05-06-2015, 09:30 AM
Rouge_cm Rouge_cm is offline
Registered User
Location: California
Join Date: Feb 2014
Posts: 10
Mein Auto: 1987 bmw 635CSi
email me for m50 swap info i have a full wiring diagram for the m50 into e21 :thumbsup: and alot more info Huntingtonbavarian@gmail.com
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Old 10-17-2015, 07:12 PM
jesus.urquiza1 jesus.urquiza1 is offline
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Location: Austin, Texas
Join Date: Sep 2015
Posts: 6
Mein Auto: 320i
I messange you akstewie84

Sent from my SM-N910T using Tapatalk
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