m3 tranny upgrade

[stracer]

What is the pros of converting to an m3 tranny instead of a stock 323is tranny?

[nobrakese36]

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!!

[tomctx]

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.

[drz]

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.

[tomctx]

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.

[93 325i]

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..

[mmclaren]

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

[stracer]

coo thanks for all the replys