E21 S14 Swap Need Wiring Help!!!

[Guest Anonymous]

Hello everybody.

I'm about to begin my S14 conversion. All the parts are ready.

Next week I will be taking my M10 out and putting S14.

There is one thing I'm still not quite sure about, it's wiring.

I do not seem to find a good swap thread and do not have $300 for a swap manual from Aardvarc Racing. Please help me if you know anything about it.

Here is what I have:

1977 BMW 320i 2.0L M10

1988 M3 S14 with Fuse box, complete Engine and Part of interior harness'.

The harness is cut where it goes to Headlights and the part that was going into cluster. The other plugs from under the dash are uncut and have two boxes attached to it. One, I suppose, is ABS control unit. The other is a little black box I have no Idea what its for...

I will keep stock the ECU and other components on my S14.

Do I keep my fuse box or put M3 fuse box instead?

Any help is appreciated.

If you have any files, you can e-mail them to nikch86@gmail.com

Thank you.

[schwarz75]

Post a message here:

http://autos.groups.yahoo.com/group/BMW_E21_Digest/

My guess is that the swap has been done many times by folks with E21s. At my first BMWCCA Drivers School, my instructor, from Michigan, had an S14 powered E21. A while back someone swapped a 4.0 liter V8 in a USA 320i.

[Guest Anonymous]

Ok.

I found my C101 connector. I have both male and female part of the connector,

so I can wire my E21 harness to it.

Here is my question. What pins on the connector I have to use and how do I wire my

E21 harness to it. I do not seem to find a good E21 wiring diagram with the colors of the wires...

Also, I have 3 unused single wire plugs on my engine harness that I do not know where to connect. Maybe ground wires?

[/img]

[Caesar]

check that :

http://bmw.ctcms.net/bmw/BMW/E-Books/E30/Wiring%20Diagrams%20-%20E30%20%281983%20to%201992%203%20Series%29/

Electrical troubleshoot manuals of the M3. may help you.

S14 service manual : links on your right:

http://m3guru.bmwe30m3.net/

[nikch86]

Here, if anyone interested in the progress on this swap go to this link

http://forums.bimmerforums.com/forum/showthread.php?t=1315787

It's almost done. I just have to finish with the drive shaft and exhaust.