M3 engine into my 325is - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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#1 (permalink) Old 05-28-2009, 09:50 AM
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Smile M3 engine into my 325is

My car's loan is almost up and i want to drop in an M3 engine and 5-speed tranny into my 1988 325is automatic. I'm just curious if anyone else has ever done this and how much $$$ and what parts i would need?

........im getting butterflies just thinking about how my BMW would be with an M3 engine!
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#2 (permalink) Old 05-28-2009, 10:24 AM
OMFG another one!?
 
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Have you located an engine source? This would be no small job... Could possibly cost more than the finished car would be worth.

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#3 (permalink) Old 05-28-2009, 10:29 AM
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are you talking an e30 ///m3 or an e36 ///m3? either way it can get expensive, just be prepared.

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#4 (permalink) Old 05-28-2009, 08:30 PM
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no....you can't do that is my guess...that won't work...nope...many reasons
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#5 (permalink) Old 05-29-2009, 01:00 AM
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Quote:
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no....you can't do that is my guess...that won't work...nope...many reasons
^ why not? I have SEEN this done..... I donno if this guy has the Abilitys or Cash(as he has a loan on an e30) Just so you know just the M3 engine(e36 or e30) will Cost more then a good condition e30......

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1996 Chevy Lumina LTZ Rep 3.4L
1992 318i Coupe parts car
1992 325i Ls1 swap with a T56 6 speed 12.2 quarter mile
1976 Mercedes Benz 300D with a Ford 5.0L Fuel Injected soon to be Modded
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#6 (permalink) Old 05-29-2009, 01:15 AM
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I would expect that you'd need to get the transmission off an E36 m3 or 328 also.

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#7 (permalink) Old 05-29-2009, 02:13 AM
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^ yep and the slave cylinder and an s50b30us or an OBD 1 swapped s52b32.... and a tree house racing adapter

1991 Ford Taurs SHO 5 Speed White on Tan
1996 Chevy Lumina LTZ Rep 3.4L
1992 318i Coupe parts car
1992 325i Ls1 swap with a T56 6 speed 12.2 quarter mile
1976 Mercedes Benz 300D with a Ford 5.0L Fuel Injected soon to be Modded
I am Captain Obvious
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#8 (permalink) Old 05-29-2009, 04:24 AM
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How does someone have a loan on a 1988 3 series?
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#9 (permalink) Old 05-29-2009, 08:12 AM
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probably buy here pay here

1986 bmw 325e with a 88is swap
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#10 (permalink) Old 05-29-2009, 10:15 AM
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lol i have a loan on en e30 because i work part-time at a grocery store! i figured it would be expensive but i would rather drop in an m3 engine than get a whole different bimmer.......im thinking maybe ill just drop in another m20 engine but get alot of upgrades for it....is that probably a better route for me?

thanks for all the input everyone!
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#11 (permalink) Old 05-29-2009, 11:07 AM
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^^ Read gotKRAUT's M50 swap thread.

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#12 (permalink) Old 05-29-2009, 06:43 PM
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so it appears to me, after much conversation is that you really can't do that reasonably..right? I mean, heck, you could put a Ferrari engine in there if you really, really wanted to....
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#13 (permalink) Old 05-29-2009, 07:33 PM
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Quote:
Originally Posted by silversled View Post
so it appears to me, after much conversation is that you really can't do that reasonably..right? I mean, heck, you could put a Ferrari engine in there if you really, really wanted to....
Has been done several times. Whether it is reasonable depends on the owners goals and expectations. In general, people who are serious about this swap find it very much worth the money, time, and effort.

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#14 (permalink) Old 05-30-2009, 01:05 AM
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i've seen it done but the ecu has to be rewired. After it was done drove just like an m3. =D
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#15 (permalink) Old 05-31-2009, 07:33 PM
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I suppose my final point on this issue would be....it would far cheaper to sell your non M 325is and take that money and apply it to the purchase of a real M3 than to try to do what you are proposing, as that wouldn't work anyway.
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