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      10-08-2012, 04:10 PM   #1
kbird
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M3 Gearbox Transplant

My 130i gearbox needs an upgrade for racing, will an E9x M3 6 speed fit?
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      10-09-2012, 02:43 PM   #2
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Not sure why? I doubt the bell housing matches up.
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      10-09-2012, 03:19 PM   #3
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I would ask a place like Manhart Racing GmbH. They are the Meisters when it comes to transplants.

There was also that guy from Sweden(?) on 1Addicts who install a 1M engine in his e87, maybe he can be of help to you.
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      10-10-2012, 08:55 AM   #4
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Quote:
Originally Posted by Dackelone
I would ask a place like Manhart Racing GmbH. They are the Meisters when it comes to transplants.

There was also that guy from Sweden(?) on 1Addicts who install a 1M engine in his e87, maybe he can be of help to you.
It was the e92 m3 motor and gearbox that was installed, in Germany someone also shoehorned in the s85 from the e60 m5. The best option would be a new clutch and a SSK IMHO. Unless you want to do the full drivetrain swap it isn't plausible.
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      10-10-2012, 04:08 PM   #5
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I think the Getrag is more than capable of track duty. Might consider a lighter flywheel and clutch assembly?

Not sure how club racing is in the UK? But, modifying the drive line ie. engine swaps and or even transmissions can move you into another class in BMWCCA and SCCA racing. The idea of this is to keep the costs down and the playing field level.
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      10-12-2012, 04:05 PM   #6
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I'm guessing no since the 1M has a modified gearbox from a N55 in it. Considering all the other M3 parts they used in the 1M I imagine they would have used the M3 gearbox if they could have.
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      10-13-2012, 04:18 PM   #7
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Quote:
Originally Posted by mrow
I'm guessing no since the 1M has a modified gearbox from a N55 in it. Considering all the other M3 parts they used in the 1M I imagine they would have used the M3 gearbox if they could have.
They could have used the dct (in the 1m) but didnt because it never benefits a brand to have the "entry level m" be the fastest.
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      10-13-2012, 05:55 PM   #8
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Quote:
Originally Posted by strati1
Quote:
Originally Posted by mrow
I'm guessing no since the 1M has a modified gearbox from a N55 in it. Considering all the other M3 parts they used in the 1M I imagine they would have used the M3 gearbox if they could have.
They could have used the dct (in the 1m) but didnt because it never benefits a brand to have the "entry level m" be the fastest.
I think using only a manual gearbox was more about giving it that back to basics feel of the original M3. I know I wouldn't have even gotten DCT if it was offered.
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      10-13-2012, 07:46 PM   #9
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Quote:
Originally Posted by mrow View Post
I think using only a manual gearbox was more about giving it that back to basics feel of the original M3. I know I wouldn't have even gotten DCT if it was offered.
Thought it was because it would make the car too expensive and push it closer into M3 territory pricewise. Really don't get the impression that BMW is interested in getting back to basics anymore.
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      10-15-2012, 06:01 PM   #10
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Quote:
Originally Posted by Lucky1 View Post
Thought it was because it would make the car too expensive and push it closer into M3 territory pricewise. Really don't get the impression that BMW is interested in getting back to basics anymore.

I disagree, with a sunroof not even being an option as another example. BMW themselves have compared it to an E30 M3.

In terms of price, the M3 you'd compare this to, the coupe, starts at just over $60,000 with no options. My 1M was $54,375 fully loaded with every option ticked except for metallic paint because I chose Alpine White. Metallic paint would have pushed it to $54,925. Still well below a bare bones M3 coupe. I just priced out a similarly equipped M3 couple on the BMW website and it comes to $72,395.

Last edited by mrow; 10-15-2012 at 06:11 PM.
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      10-16-2012, 06:39 AM   #11
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Quote:
Originally Posted by strati1 View Post
It was the e92 m3 motor and gearbox that was installed, in Germany someone also shoehorned in the s85 from the e60 m5. The best option would be a new clutch and a SSK IMHO. Unless you want to do the full drivetrain swap it isn't plausible.
that's a different one

if you look up 'wide body E87' it'll come up with an N54 swap with M3 gearbox and other stuff.

ED: your 130i doesn't need any strengthening gearbox wise, z4m came with the gearbox that we have, and they've done many an S54 supercharger setup through it...
I'm banking on it holding an N54 successfully lol

the 135i/335i gearbox could fit (i'm stiull not sure on the bellhousing), but size wise at least. it's a bit higher rated, but still you don't need it at all.
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      10-16-2012, 08:38 AM   #12
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Do you really think putting the DCT in a 1M is a doable project?
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      10-16-2012, 04:38 PM   #13
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Quote:
Originally Posted by Derek8819 View Post
Do you really think putting the DCT in a 1M is a doable project?
As a retrofit? Maybe. I don't know if the cost would really be worth it. Also don't know if it could handle the increased power without any issues.

As to the original poster, I would say go for the 1M's gearbox. It should almost certainly fit.
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