motor swap or stock motor

[boosted56]

i blew my motor last night, i have a 94 325ci. so i was wondering how hard is the m3 swap, 330 swap, or 328 swap.

[pbclax423]

if your truly looking to do a motor swap check into the LS1 ... if you want to stay german id look into the obd1 m3 swap. those are my preferences... however a simple search would give you all the answers you need.

[boosted56]

i saw that someone was posting up about a 2jz swap, supra swap, did anyone complete it b/c iv got a motor that can go in.

[strad]

In order of difficulty:

M50b25 (or TU, can't remember what you have in your MY) or S50b30
S52b32 or M52b28 OBD1 converted

Anything not made by BMW, or the M54 (hard to get the electronics working on that one)

[pbclax423]

the ls1 is tried and true though. many people have done it and theres plenty of literature about it.

the m54 would be very very nice but would have to be professionally tuned and the electronics are uber hard.

it depends on what your looking for out of the swap.... great gas mileage... power.... driveability.... reliability.... theres different #1's for all the different want's and need's

[KyleAwesome]

i saw that someone was posting up about a 2jz swap, supra swap, did anyone complete it b/c iv got a motor that can go in.

If thats your mind set, sell the car/shell and buy a 92 DX THEN swap in a 2jz.

After fabbing all the mounts and all
AEM
tuning
other misc things...
You're in for the price on an M.

[boosted56]

well i dont want to turn this into a huge project ive already got a 450whp supra, i was looking to do more of an everyday driver. the 328 2.8 is that obd1 if not can i use my obd1 ecu? and whats the power difference between the 2.5?

[boosted56]

what are the engine codes, 325, e36 m3, and im looking at an e36 m3 motor, i was wondering if it with work with the 325 wire harness and engine bay.

[fuggle]

what are the engine codes, 325, e36 m3, and im looking at an e36 m3 motor, i was wondering if it with work with the 325 wire harness and engine bay.

The E36 (pre '96?) M3 engine is a 3.0L S50 motor. It is OBDI and should drop right in. Engine bay should work, harness I don't know but probably. Check the engine swap forum for M50/S50 swap. I would like to swap for a euro spec S50!

Kent

[boosted56]

alright i want to put an obd2 m3 motor in the car do i need a different wire harness for an obd1? is there a conversion wire harness?

[Bluebimma]

1. http://www.bimmerforums.com/engine_faq/
2. Any E36 engine with fit in your engine bay.
3. http://forums.bimmerforums.com/forum/showthread.php?t=602151&highlight=OBDI+conversion&page=2
4. http://forums.bimmerforums.com/forum/showthread.php?t=311638

[boosted56]

thanks that really helps out alot, but will the stock 325 tranny bolt on to the s52 and the ecu hes talking about where do i get that?

[Bluebimma]

Yes it will bolt up just fine. Go to the For Sale section, you can find 413 Red labeled DMEs for about 150-300$

[joako]

The S50/M50 S52/M52 engines are practically identical block everything should just bolt on. If you are keeping OBD-I then you should be able to reuse your exact harness you just need a new ECU because the S50/S52 engines are tuned different. Or you can talk to a chiptuner and they can make you a chip that will work with your current ECU.

[boosted56]

thanks alot for ur help, i like this forum more than i like the supra forum alrighty

[Bluebimma]

You can mate all the e36 transmissions (US versions) with any of the engines without a problem. The only time there is an issue is when you do an auto-manual swap, or the Getrag based 4-bolt driveshafts vs the ZF 6-bolt driveshafts.