Shame nobody’s got anything conrete on this. I can’t see it being a major PITA tho so guess I’ll just have to buy the rear forge bbk kit and go from there! Hopefully not too much needs swapping.
I was looking into getting another BBK but ordering fitment for an M3 and swapping on the hubs/knuckles. My biggest fear is that the wheels would then be pushed out too far and be past my fenders or something, as obviously the wheel track on an M3 is wider, but maybe its less of a concern than I thought by what @martymil is saying, that it brings the hub mounting flange in tighter...I don’t recall exactly
From what I recall and what I wrote at the time the hubs are different in that they placed the disc further out and by my reckoning by 8mm.
IMHO
The f30 brake setup I ended up doing on mine is a better easier upgrade
Fronts are bolt on 370mm
Rears are easy enough (almost plug and play as well with eccentric bushings and e65 discs.
e92 M3 stuff is good and all but to get the front to match the back you need uprights and all sorts of stuff and they are still sliding callipers etc
Yes, already have one of these ready to swap in regardless.Also, regardless of what you do get the M3 master cylinder to avoid a mushy pedal
Interesting that it brings it closer. I thought it would push it further out with the M3 having a wider wheel track. That was your experience from swapping M3 hubs/knuckles?The m3 hub places the rotor further in not out by 10mm each side on a 135i not sure if its the same on the e92 as I never measured it
but should be the same.
Oi, I gotcha. The only rear arms on my car at this time that are not M3 are the camber links - been waiting until I get new coilovers to swap that one out.Its the control arms that bring it out not the hubs.
The m3 has a wider track because of the wheels
Appreciate the offer, but yes I'm in the US and don't want to deal with that shipping headacheI have BC ER's to suit a 335 with m3 control arms but I gather your in the USA so shipping would be a nightmare if you wanted them.