Quote:
Originally Posted by MaverickBMW
Then that would also mean that the front driveshafts are unsprung too?
The reason I ask all these questions is that I have an e91 328xi that I am looking at installing ZSP springs. And based on BMW website for weight and weight distribution my vehicle (3,814 lbs and 51.2% frt) that would mean there is 1,953 lbs on the front. The 335i (auto) has 1,842 lbs on the front and uses a D7 ZSP spring. Can I assume that this would be the closest match? I have heard others saying that the 335i D7 springs actually raised their 328xi???? Is the difference in the unsprung versus sprung weight?
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I have a 330xi sedan that I just installed springs from a 335i coupe. D6/D3 springs. Now you'd think (since the weight distribution of the coupe is 51/49 vs the xi 53/47) that the 'rake' would be reduced. In my case, while both ends dropped, the front drop was minimal increasing the rake. It's not bad (and the rear drop is perfect) but I wish I went with D5 or D4 springs on the front. According to the BMW website my vehicle would have 1922 lbs on the front and 1705 lbs on the rear vs your 1953/1861. If I were you, I'd look for D5/D4 (front/rear) or D6/D5.