The comprehensive DOHC engine swap thread.

[PiercedE30]

i hate canada... hang on there, l.a. is just as hot as here, why wouldnt i be able to run the 318 rad?

haha, not L.A., La. As in the state.

[B3M2W5]

So has any one else had issues with the Clip that goes on the DME not fitting into the hole into the cab. Just wondering if i am the only one how did any one solve this issue, just drill a little bit or punch it out?

[windsor318is]

Just run the M42 radiator and if your temps run hot, install a larger radiator.

An nice, high volume electric fan will help the M42 radiator significantly. I don't think a 16" one will fit on the M42 radiator, so go with a 14".

your the fucken man. im trying that, wont hurt to have an electric fan if i put the e36 rad in anyways after that if it doesnt work. any suggestions on fans i have no clue?

[Mike B.]

I used a 16" Spal pusher fan with curved blades on my swap.

[e30polak]

using 16" perma-cool on my swap mounted in front of the rad...works great

[B3M2W5]

Any one got some info on wiring the starter I was reading and found out some where, lost it agian. That you can pull the big red wire from the harnes and use the orig. E30 starter wire and you can eliminate two wires from your Harness doing so. Pic let me know if i am corect plz.


and is this the other end of the big red wire right.

[windsor318is]

sorry i cant help you out, but what resouvior is thati see you use for the brake/clutch fluid?

[87-325ic]

another question, how does the slave connection hook-up to the ZF tranny?

[FredK]

You have to bend the E30 clutch hose so that the fitting is facing the correct way.

[etxxz]

another question, how does the slave connection hook-up to the ZF tranny?

remove the e36 line and use the e30 slave line...you'll see about the bend that FredK is talking about when you mount it.




I have an OBDII question: can anyone point me to the thread about having two keys, or any ignition wiring information.

I think i have most of the security wiring out, but i can't put together in my mind how to make ignition/key part work. have done lots of research here.

[B3M2W5]

sorry i cant help you out, but what resouvior is thati see you use for the brake/clutch fluid?

My stock one from my car (87 325e)... I dont have money or time to track a diff one down its getting to cold to be riding a Rocket around

[87-325ic]

thank you above. e30 line is used, but bent to make fitting go on; got it.

[B3M2W5]

Cn any one help me with how to make my tach work i kinda would like that back......
I have read some where and can remember where its at or what i typed to serch for it but. I know i have read some where that you have to do something with a little black wire and then i dont know what to do after that.... Any help plz

[Van Westervelt]

Motor,
All m50 Access.
M50 wiring harness
e34 m50 oil pan, pick up, and dipstick
DME without ews
Late model Radiator (maybe overflow tank de on which rad you go with)
e36 mount arms
e28 535i motor mounts
ix or e21 modified brake booster
Some PS lines, Coolant hoses
Somewhat custom exhaust

That is as detailed as I care to go right now. Search and read the rest.

The flywheel and clutch are up to you and depend on what tranny you are going to use, which will decide your driveline as well.

Every once in a while I am not an ass. ;)

[smonkbmw]

ix or e31 modified brake booster
Somewhat custom exhaust

e21 booster. nothing to custom is required. run all e36 from the manifolds back.