s52 with Z4 6 speed

[Lino]

What would be the equal to the 5 speed with 3.25 ratio diff.?Could i run the 3.73 lsd with the 6 speed? Really would like to install a 6 speed when I get my stroker 3.2 engine done.Bottom end is at engine builder as we speak.
Hey teaguer, post a pic of my car for me

thanks, Lino
Texas

[Jarvis]

Whatever is a little shorter than the stock final drive on the Z4.
The E30 chassis isn't capable of the intended top speed of a Z4, but the Z4's wheel/tire package also has a larger rolling diameter than the E30's.
I'm not positive but I believe the 3.0i 6spd has a 3.07 rear end. So something like a 3.25 would probably be suitable in an E30.

[Brian 89 325i]

OH, is that the same trans as the euro E36 M3? If not, whats different about it. Anything special to fit it?

Brian

[Stu]

What are the ratio's of the Z4 trans? That would be a good start in getting advice on the proper rear gear to run.

[Teaguer]

Hey WTF is this post all about ?? :D
I thought you were gonna keep all this under wraps and then just spring onto the scene with it all done complete with 6-spd .

I would think that the 3.73 would be a kickass ratio and would be manageable since the trans would still have OD . (it does , right?)
Or to be more streetable the 3.25 would probably do the trick.

Hey speaking of rear ends , I hope my 3.73 LS is not laying out there in the rain . :)

Heres a snazzy pic or two of your g-ride :




Thats a good idea to include your wheels in your sig , it will keep us from getting a thousand posts asking what they are. ;)