m10 to m30

[hendrixvodu]

Nice. I just might do it! But mine will have a 75shot! Also I have a 84' 318i car.. so I use the 320i harness? There kinda impossible to find and the one imprted car I fund it was gone.... I did get the bumpers :) Isnt the 87 325e harness the same? Thanks.


p.s dont you mean 215mm clutch?

agreed 320 = impossible to find.....but what do you think about this 87 E harness? ive heard the same thing....think it will work for the m10 set up?
if that harness works....our m10 cars will be ideal for the m30 swap :D

[flawdaboi407]

^ yes sir. Does the ecu plug right in on m10 cars?

[gstuning]

All depends on the engine to be used and the ecu to run it.

you can not use a motronic that uses flywheel sensors because the m10 doesn´t have
any mounting points. so it´s motronic 1.3 only and front timing wheel.

There are only a very few wires you need to wire to start the engine to the car.
starter is black/yellow
coil is green wire
rpm on motronic 1.3 is black in the round connector
blue is alternator - sometimes there are two blue so measure to double check
fuel pump varies a bit and needs to be checked from m10 harness and relays.
same with m1.3 harness.

[hendrixvodu]

All depends on the engine to be used and the ecu to run it.

you can not use a motronic that uses flywheel sensors because the m10 doesn´t have
any mounting points. so it´s motronic 1.3 only and front timing wheel.

There are only a very few wires you need to wire to start the engine to the car.
starter is black/yellow
coil is green wire
rpm on motronic 1.3 is black in the round connector
blue is alternator - sometimes there are two blue so measure to double check
fuel pump varies a bit and needs to be checked from m10 harness and relays.
same with m1.3 harness.

shit my car is jetronic ....does this mean i am screwed? ....is it going to be impossible to wire up this engine and fuse box?

[hendrixvodu]

also....could i use that motronics harness....and then wire the c101 plug? is that the plug that everyone rewires? ...and if i can do that....what do i do about the fuse box?


P.S. sorry if these are dumb questions....but i cant find shit on this swap for the m10

[flawdaboi407]

^ me ither.. the wiring part has me thinking

[gstuning]

You don´t do anything with the fuse box.
you just find the wire colors mentioned,

all m10s are jetronic.

if you have a early m30 you will need the later m30 motronic front crank sensor and timing wheel on the front. I.e update the engine to later motronic you don´t have to do that with the later m30´s. you can then get a m20b25 motronic loom and use that.
but you will need to rewire the loom a bit to connect to the m10 box connector.

best would be to locate a m10 wiring diagram and trace the m30 side to the m10 side.

[hendrixvodu]

that sounds promising! ...well im going to get a late model e34 oil pan and AFM this week.... do you have any idea where i could find either of the wiring guides for these cars?

by the way...i just wanted to tell you that you have helped me out A LOT!!! i really appreciate all your time and help! :up:

You don´t do anything with the fuse box.
you just find the wire colors mentioned,

all m10s are jetronic.

if you have a early m30 you will need the later m30 motronic front crank sensor and timing wheel on the front. I.e update the engine to later motronic you don´t have to do that with the later m30´s. you can then get a m20b25 motronic loom and use that.
but you will need to rewire the loom a bit to connect to the m10 box connector.

best would be to locate a m10 wiring diagram and trace the m30 side to the m10 side.

[flawdaboi407]

what flywheel did you use with the m10 tranny? I assue the m10 one right?

[hendrixvodu]

havent got one yet....i was just gunna use all new m10 clutch parts ....me and my friend figured the car would be light enough to use that clutch

[flawdaboi407]

Heres a pic I saved a while ago...

[hendrixvodu]

flawdaboi407

dude that helps out a lot!!!!!! much thanks!! im saving the image as of now lol!

[flawdaboi407]

that pic i got from n8bmws thread and the info is from g&t for wiring msII. but its shuld be the same for the harness.

[Antrieb325]

I realize this is an old thread, however I have a bare '84 318i shell, and a running (but wrecked) '90 535i manual. So I was planning on swapping in this drivetrain into the 318i, but all the electrical is out of the 318i. Can I use the complete M30 E34 wiring harness in the 318i and not mess with E30 electronics? I shouldn't need any electronics from an E30 correct?
Thanks,
Korey

[Antrieb325]

Bump..anybody?