View Full Version : how to ? -1987 325e MOTRONIC 1 to 1.3

06-09-2003, 04:25 AM
i want to exchange my 1987 325e intake manifiold with the 88-91 i or is e30, and i want to know what version of the ecu to get.

Bimmer Heaven
06-09-2003, 04:34 AM
You need more then the ECU, you need the full harness (from ECU to engine) and might have to do some wiring to the fuse box plug...

06-09-2003, 04:43 AM
could i just switch the manifild

06-09-2003, 04:47 AM
oh heres the deal, i want this http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2418248576&category=38634&rd=1

on my 87 325e

Bimmer Heaven
06-09-2003, 05:04 AM
I wouldnt say its worth it because you also need the TB from the "i"...And even then the ports on the head are still small, same with the valves, exhaust manifolds, downpipe, exhaust...Better to do a full "i" head transplant but its a lot more $$$

06-09-2003, 05:07 AM
well maybe one day, but what is the tb and wheer does that go