Quote:
Originally Posted by GreasyGinzo
I was looking around for what exactly the comp pack gave you and saw mention of a tighter ratio steering rack. Is this true? If so anybody who has driven both (ZCP and non-ZCP) can you comment on how much of a difference it is? I would imagine its like the difference between "Normal" and "Sport" Servotronic modes on MDrive equipped e9x M3s?
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Yes the ZCP has a tighter rack, as it was mentioned before. ZCP is 14.5:1 and normal is 15.4:1, and while the ZCP rack is tighter it isn't very noticeable. I know because I have driven both.The only rack swap I've heard of having a huge margin of change is swapping in a Z4M rack which I believe is a 12.8:1. Somebody on M3forum.net did it I believe. I read about it a long time ago.