m3 tranny upgrade - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 12-19-2005, 07:16 PM
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m3 tranny upgrade

What is the pros of converting to an m3 tranny instead of a stock 323is tranny?
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#2 (permalink) Old 12-20-2005, 10:56 AM
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its a lot stronger, will probably last a lot longer since the 323 doenst have the power of the m3, con , finding one for a good price, pro, euro six speed if you can find it!!
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#3 (permalink) Old 12-20-2005, 02:38 PM
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To change the tranny, you're also going to have to change the flywheel. IIRC, big bucks for an M3 flywheel. The trans you have is plenty strong for the car. Unless you plan on forced induction, I wouldn't bother changing the OEM tranny. And then only change if the FI kit recommends it.

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#4 (permalink) Old 12-20-2005, 04:15 PM
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You don't need an m3 flywheel. The same transmission was used on the 328. I guess a 328 flywheel will do. I am pretty certain they are different than the m3, because they do not need to withstand as much power, therefore should cost less.

I don't see how it would really benefit you, though. You may look into the gearing ratios a little bit, but I doubt it will help your acceleration much, if at all.

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#5 (permalink) Old 12-20-2005, 04:57 PM
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Depends on if you want the M3 clutch with the tranny. The clutch is bigger in diameter, therefore the flywheel will have to be replaced. Like DRZ said, don't see any gains to be made with the swap.

BTW, the 328 uses the same size clutch as the M3 from 96' on. Flywheel may be a little cheaper. Another problem may be that the M3 and 328 use a ZF tranny. The 323 uses a Getrag. Don't know if they'll physically swap.

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#6 (permalink) Old 12-21-2005, 09:27 AM
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the swap is possible but there would be no point unless you need a new tranny anyways. Also between 97-99 the M3's had tranny issues. 2 cars I called for recently both 98 M3's had the tranny's replaced under factory warranty for some defect..

Complete mod list and pics:

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#7 (permalink) Old 12-22-2005, 08:46 AM
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Pros : Well its off an m3
Cons : its gonna cost u an arm and a leg.... + 2 fingers and your spine.

its a 323i which well is a decent car with an average engine as far as bimmer engines go, but unless you plan to work your car why put in the tranny?
If you tranny was screwed then i would consider it, but it will still cost u a crap load more than a 323i tranny setup
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#8 (permalink) Old 12-23-2005, 10:42 AM
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coo thanks for all the replys
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