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sorry for the late reply. i am pretty busy these days. got some new grinding and turning machines that need to be set up.
i did not make any pics of the m235i racing lsd core as the customer was busy and waited while i rebuilt it. but the setup is just the same as in the m3 gt4 and in the early z4 gt3 cars. only the lsd case and caps are different to fit in the 215L pumpkin.
the 435i also has the 215L axle. the m performance lsd is quite ok. you will noticably feel the 30% lockup on power... you will most likely not feel any improvements under braking. but for a bmw FR car, the more important thing is the lockup on power. just throw it in and drive it for a while. if you feel to rebuild it in the future due to wear or because you just want to upgrade the unit you can put in another setup i.e. the gt4 one that locks noticably more on power and coast.
i try to make some pics of a M235i racing core when i have the next unit here for rebuild. or maybe i can even show you a new unit as i am about to order a bigger quantity of lsd cores and parts from drexler soon and maybe i will add such a core as well.
so far i only build some parts myself but i do not build complete lsd units from scratch. i use old zf lsd cores and rebuild them from scratch and i have some suppliers of lsd cores and parts (like drexler, titan, bacci, kaaz, ...) that i also modify and rebuild to my own specs or to special customer needs.
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