This is great to hear. I’m going with ACL RB’s as well and Lang Racing is doing my service. They also have recommended it and it was glad to here they weren’t pushing me to use BE RB’s or WPC. Apparently, they have used ACL’s for preventive maintenance on S85 motors and race S65 & S54 motors.for those interested, i'm almost at 30k on my ACL bearings with zero issues. I also supercharged it a few months ago. No issues. I'm looking at every fin on the filter looking for copper flakes, and at the first sign of it, i'll do another bearing change and post the bearing conditions. My plan was to just do bearing change at 30k and show you the ACL bearing conditions, but man... I'm enjoying this car too much! maybe i'll do it one of these weekends. I feel I can probably do it much faster this time and forget about plastigage, vanos pump assembly, and all that.
I have the extra clearanced ACL race bearings straight from ACL. I forget the actual part number. I posted it up on my original thread when I was doing the bearing change. Personally, that's what I recommend. No, I'm not being paid or incentivized to say that.
2010 E60 M5 • Space Grey