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Old 01-21-2007, 04:21 AM   #1
Boots R
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Euro M3 Motor question.

I was thinking about euro-spec motors today, and I was wondering...

Will a 3.0l OBDI motor just bolt up to a North American 1992-1995 OBD I car?

What about a 3.2l 1996-1999 euro motor? I'm assuming it's OBDII also. Would it just need the standard parts swapped for an OBDII engine in an OBDI car?

What about the 6-speed transmission and motor? Would any additional parts be needed for the transmission swap?



Just for the record, this is just for my personal information, as a swap like this would break my budget.
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Old 01-21-2007, 06:17 PM   #2
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Nobody?
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Old 01-21-2007, 07:22 PM   #3
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No the euro s50b32 is OBD1, and you'd run its as OBD1 or standalone with megasquirt or tec3 or something.

Tranny mounts are different i believe, and the diff mounting is a little different, nothing majour as far as i know.
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Old 01-21-2007, 07:29 PM   #4
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The 3.2 is a dual vanos motor, has two computers.

You have to get over the infatuation with the exclusivity. The S54 is better than either of those motors and they are a dime a dozen in North America. So not only will it be cheaper to get, get more performance and be 100x easier to upgrade since there are dozens of tuners with ready solutions right here on this continent, if anything goes wrong, fixing it will be reasonably priced and easy.
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Old 01-21-2007, 08:20 PM   #5
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Do all dual vanos motors have 2 computers?
like the m52b28TU?
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Old 01-21-2007, 08:31 PM   #6
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Quote:
Originally Posted by propr'one
Do all dual vanos motors have 2 computers?
like the m52b28TU?
That I'm actually not sure of, I only know about the S50B32 because I was looking to find a crashed car in Japan and import the motor/tranny. I was told by someone in the know that it won't be worth the effort for the difficulty and the performance gain. It is much cheaper, easier and beneficial to use an S54.
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Old 01-21-2007, 08:35 PM   #7
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Quote:
Originally Posted by BigD
That I'm actually not sure of, I only know about the S50B32 because I was looking to find a crashed car in Japan and import the motor/tranny. I was told by someone in the know that it won't be worth the effort for the difficulty and the performance gain. It is much cheaper, easier and beneficial to use an S54.
Now i've also heard it is a pain to install an s54 in an OBDI car, due to all of the wiring. Is this true?
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Old 01-21-2007, 08:45 PM   #8
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boots, just get a american obd2 s52 3.2L and convert it to obd1. converting it gives you about 20+hp then the 240 they have listed. then from there u can S/C but i think u would be happy with 260...well i would be the euro swap and s54 are wayyy more detailed and require crazy $$ parts. and i dont think you wanna pay like 1.5K to get the dual vanos unit replaced on the euro m3 motor since they are know for going bad.
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Old 01-21-2007, 08:47 PM   #9
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Quote:
Originally Posted by Boots R
Now i've also heard it is a pain to install an s54 in an OBDI car, due to all of the wiring. Is this true?
Possibly. There's a guy on E46fanatics who has swapped it into a friggin E30 (ie OBD0), so can't be that hard. On top of all that, he swapped in an SMG S54, which has been the cause of all difficulties (the transmission is stuck in safe mode because his sensors were wonky, he's probably fixed it by now, I haven't checked in recently). But he's not having to use a remote brake booster which I know is mandatory with the S50 becuase the manifold is so huge.

But regardless, it's cheaper, easier to get, straightforward to find replacement parts (even the super expensive bits - go find an S50B32 head if something goes wrong with yours) and significantly more powerful.
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Old 01-21-2007, 08:49 PM   #10
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Jesus, 1.5k? Thats depressing to hear. I would probably never be able to afford a swap like this anyways... probably not even a NA s52 swap. This is all just for my personal information, as i'm curious. It seems like i'm getting some pretty good answers!

What is needed to swap an s52 to OBDI?
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Old 01-21-2007, 08:52 PM   #11
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Quote:
Originally Posted by Boots R
What is needed to swap an s52 to OBDI?
Basically everything except for the long block. All of the sensors (except the coolant sensor, you can splice the dual sensor leads on OBD1 into the single OBD2), manifold, throttle body, harness, fuel rail, hell even the power steering - unless you use all of the hoses from the M52, you have to replace the pump with an M50 one. Then you need to mod the headers.
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Old 01-21-2007, 08:56 PM   #12
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Quote:
Originally Posted by Boots R
What is needed to swap an s52 to OBDI?
not much. just the bigger obd1 manifold+tbody, fuel rail and crankshaft sensor. MAF too (i think). also you would need a obd1 325i,525i or m3 wirning harness(with vanos)....and the obd1 413 ecu(red label has no EWS so no headaches) but the silver 413 labels could work too if you get a chip to delete the ews.
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Old 01-21-2007, 09:01 PM   #13
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boots.......















































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Old 01-21-2007, 09:15 PM   #14
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boots......again
flopppp lol
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Old 01-21-2007, 09:21 PM   #15
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boots......again
flopppp lol
lol GTFO Dan. Or sell me your car.


To BigD/e30_kid: So all of those OBDI parts, I would be able to just pillage them from the m50 in my car now?
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