The comprehensive DOHC engine swap thread.

[omar85]

hey i don't want to make a new thread for this and i am assuming other will run into the problem. I put an 94 m50 intake mani and wiring harness on an S52. The problem is i don't know which female connector goes to the vanos and which goes to the coolant temp sensor. the only difference is the blue rubber piece on the female ends.

here are the 2 female plugs on the harness. one is for the temp sensor which i am not using the and other is for the vanos unit. both have the same color wires when u pull the rubber back. how do i know which to plug into the vanos male end.

[etxxz]

^^ not 96+ (///M's for sure)

and regarding your last comment.. thank bmw engineers and their terrible, but genious imagination. bmw is like lego's it all bolts up everyhwere.

[e30s50dan]

I think I just answered my own question.I just now found out that the e36 were dual mass...DAMN , so I quess im back to finding a m20 flywheel,starter,etc,etc

[e30s50dan]

...another trans question,ok, have a 91 318i with E36 92' M50 engine,with the 92 trans.

Is there any issues using the 92 e36 trans with the stock clutch/pp/flywheel and the starter??..hell it all bolts up or am I missing something??!

..and how about the trans bracket? will the 318i work or do I need one from a 325?

Thanks for any help..THIS SITE ROCKS!!

[87e30]

I have an eta stock flywheel clutch.

Putting an m52 in the car.

Will the tock clutch hold and then I should just get an i flywheel?

Hoping for up to 210whp in the future. (m3 cams etc)

Also, engine came out of an automatic car. Anything i need to do or the motor will be fine bolted up and wired for the manual.

[7pilot]

You'll need to bend the clutch line but you can use it.
m

[e30_325es]

Just to verify: S50 with 97 zf trans. If I replace the output shaft flange on the trans, will my stock 86 eta driveshaft work? There won't be a lenght issue, correct?

Oh, and what clutch line do I use? Stock or e36 to mate up to the e36 slave?

[87e30]

yes

Thank god. That's what I was thinking but wanted to check. woot.

Thank you!

[lennon]

So I have a full 328is parts car with an auto tranny.

For my 87 325es I bought a brand new driveshaft and a new to me g260.

If I bolt up the g260 to the m52 will the new driveshaft that I bought still be the correct length?

yes

[87e30]

So I have a full 328is parts car with an auto tranny.

For my 87 325es I bought a brand new driveshaft and a new to me g260.

If I bolt up the g260 to the m52 will the new driveshaft that I bought still be the correct length?

[bimerok]

So I need an s50 o2 sensor? Ok. Thanks!

Yes

[e30_325es]

So I need an s50 o2 sensor? Ok. Thanks!

[etxxz]

primary (pre-cat) O2's always needed. your A/F ratio depends on it.

[e30_325es]

What o2 sensor is needed, if any at all? s50us with ebay headers in an 86 325es. Thanks!

Also, how do people mount the late model coolant reservoir in early cars? I see no mounts for it.

[MatRacer]

^^

Thanks!

I was looking in the bentley, But the wiring diagram of the cluster and engine is not as detailed than is the ETM.

I should be able to sort it out...

And yes, its a nightmare!