2.8L M52 Swap - Complete engine and then what else?

[dinanm3atl]

So I think I have found my motor. 130K M52 which is currently installed in a 318Ti which was obviously a swap.

The motor is 100% complete with all accessories and the engine harness. Flywheel attached

My plan is to OBD1 swap before it goes into the E30. So do I need the OBDII ECU? Key? EWS/Chip from the key or anything else I should try to get since the motor/car is actually complete right now?

Then I need an OBDI Harness and some sensors and the correct ECU and a chip from what I understand. Is that correct? What is the part number for the correct ECU?

[Farbin Kaiber]

Search?

No, jk...

You will need the OBD1 m50 manifold/TB, engine harness, crank/cam sensors, ecu, knock sensors, e34 pan, pickup, and dipstick, etc.

You will not need the ecu, key/ring chip from the OBD2 car.

But, you could just get everything (complete engine + DME) then get a ews delete chip. It could save some fundage.

[mightywhitey]

Im doing the same swap and have picked up the following

m52
Obd1 harness and various sensors
Obd1 intake
m42 radiator


I know I need to figure out
Brake booster
and because Im doing 5 speed swap I need to figure out drive shaft and flywheel status.
Throttle body

Good luck.

[dinanm3atl]

Good. That makes the motor that much cheaper :)


I did search and have most of the information but I wanted to make sure I get everything that I need from this seller since the car is so 'complete' :)

[dinanm3atl]

Search?

No, jk...

You will need the OBD1 m50 manifold/TB, engine harness, crank/cam sensors, ecu, knock sensors, e34 pan, pickup, and dipstick, etc.

You will not need the ecu, key/ring chip from the OBD2 car.

But, you could just get everything (complete engine + DME) then get a ews delete chip. It could save some fundage.

Manifold, TB, Harness, pan, pickup, dipstick would probably be fine used. Good idea in my mind to get all the various sensors new I would think.


02 Sensor I use an O2 setup from an OBD1 vehicle correct? For the life of me I cannot remember if it is a single O2 right where the pipes merger before cat or if it has 1 in each manifold...

[jakeb]

single O2, all sensors wiring comes from OBDI

[dinanm3atl]

single O2, all sensors wiring comes from OBDI

That is what I thought. Damn OBD2 has 4 of the stupid things.

[Farbin Kaiber]

Yep, therein lies the benefit of obd2 for power from tuning, more adjustment via data available.

[Dominic49]

or just have me and justin do the swap for you and you not have any worries about what to get.

[dinanm3atl]

or just have me and justin do the swap for you and you not have any worries about what to get.

That cost monies ;) And I do actually like to work on the cars sometimes.

[Dominic49]

That cost monies ;) And I do actually like to work on the cars sometimes.

i can atleast do your harness modification if you would like.

crank sensor
cam sensor
knock sensors
engine temp sensor
cluster sensor (drill and tap head/drillout TB coolant hose hole and re tap/rethread sensor)
maf from obd1 vanos motor.
obd1 O2 sensor
413 ecy
obd1 throttle body
obd1 vanos intake manifold
welded obd2 manifolds

what trans are you going with? i would suggest the zf for the plug and play factor.

[dinanm3atl]

I don't know what trans. Isn't the only non plug and play about getrag 260 is needed a trans cross brace?

[Dominic49]

I don't know what trans. Isn't the only non plug and play about getrag 260 is needed a trans cross brace?

also the bent shifter linkage and selector rod.

[dinanm3atl]

My brand new Z4 2.5i rod would have to be bent? FML.

[matt]

Why not leave it OBD2? The OBD2 shit is cheap compared to an OBD1 conversion.

I can delete EWS and tune it for you.