1.3 Motronic Up-Grade & 2.7i How To

[bmwm42]

if i do this update on my eta....would i then be able to use any getreg trans?

[efficient]

Any thoughts?

[efficient]

anyone know what this wire is or does and goes to?
its a red/brown wire that comes off the dme wire harness from a 1987 325is. i dont know where its supposed to go in my 86 325es.

Untitled by clean3two3, on Flickr

Untitled by clean3two3, on Flickr
anyone? t.i.a!

[Aviator]

Sorry if this has been addressed already but I didn't see it. My friend said he built one using a 2.7 e block and crank with I pistons and I 885 head. And I intake. Not sure on anything else right now. I guess he had to modify the I pistons, and he decked the block 1mm. Anybody here ever go this route?

[david2991]

So I have completed a 2.7i motor swap and the tach and temp. on the swapped 7k cluster do not work. Any ideas? I have swapped in a 325i temp sensor as well.

[gnarkilla1988]

Please help,I have all the parts for this up grade to my 86 es , it this car is my daily driver and I have read this entire thread 3 times and my question is: when fallowing the diagram in the first post, will my car start up and drive? And what other wire differences do I need to know about?

[CabbE30]

Can any late model ECU me used or does it have to be a 173?

EDIT: Found. http://www.r3vlimited.com/board/show...&postcount=276

[F34R]

Made this thread a sticky because I get PM after PM every week about a collection of parts needed. This thread has the best collected info to help anyone new/old to get the perfect understanding of what is involved.

[Chapel]

I'm trying to understand exactly what is necessary do do this from a SuperEta swap. There is a bit of back and forth here.
From my understanding I need a fully dressed i head (or at least the cam and valve springs), intake manifold, afm, and 173 ecu?
This is going in an E28 mind you.

[Gary Horneck]

Good writeup. My '87 325e fired right up following the instructions. I used a recently rebuilt EU 323i head, and the rest of the parts from a '88 325i and '90 325i. The motor pulls cleanly, idles perfect and gets all fun on the 1st to 2nd shift. Car is a dedicated AutoX/RallyX car and this feels like some much quicker times. No more falling flat and shifting at the wrong places on course.

Update: Dyno day today. Nice numbers. Well worth the swap. 139.04 hp/149.26 torque

[Need4Speed1299]

Need an early square to late round c101 adapter? Pm me!

[1fastm50]

Note 3: A 30amp fuse will be needed in the fuse box for the fuel pump.

Please ask questions and leave comments! If you need to e-mail me, my address is kenika65@msn.com

This would be fuse #11-7.5A if im not mistaken right? Why does this need to be switched out for a 30 amp fuse?

[digger]

Does an M52 crank fit into a M20 block with no modifications to the block while an S52 has to have a modified block to make clearance for the rods???

Am I thinking about this right?

some M52 cranks do but not all...........S52 requires machined intermediate shaft my block did not need clearnacing

[mph10909]

If done correctly it's a start up and drive ordeal

[SkywayScraper]

Getting ready to do this...is it as simple as swapping on the parts and cranking right up or will there need to be some trouble shooting and a stand alone tune?