325e to 325i conversion?

[Rockinlittle325i]

my friend has an Eta and he wants to buy my wrecked 325i and swap the drivetrain, what all is needed out of my car?
what parts are the same?

[James Crivellone]

what years are each car, bmw changed something (especially electrical) every year they made the cars...

[Rockinlittle325i]

mine is a 89,
I dont know about his eta, it's got diving boards

[James Crivellone]

mine is a 89,
I dont know about his eta, it's got diving boards

okay, I cannot help you without all the details, come back when you have everything and I can give you some ideas.

[Rockinlittle325i]

it's an 86 eta

[James Crivellone]

it's an 86 eta

Easiest option is to find an engine harness from an 87 325i which will plug into the car without issue (assuming it has the round C101 connector near the firewall)

More complicated option is to run 2 wires over to C104 (that supply Tachometer and MPG function) C104 lives near the ECU, 3 wires Green, Black and Yellow

Otherwise it all plugs in. Make sure you change the waterpump over to an 84 - 87 model so everything bolts up to the cooling system.

[Rockinlittle325i]

so we need a 84-87 water pump.. and a engine wiring harness from a 87 325i?

[ColdAccord]

m20 swaps aren't worth it, just go m50

*this is totally my opinion, many will disagree and i can see why. but personally, since they can be done for the same amount of money, i'd rather have 20 more horsepower, 12 more valves, hydraulic lifters, etc

[Rockinlittle325i]

true

[Slurpyy]

I have the same questions as this guy.

I have the same car, we need an 87 325i harness, and ecu??

then change over the water pump, and everything should be plug and play?? no splicing or any of the BS??