Quote:
Originally Posted by luckyu
Mav, the other concern I have is that you're lowering the car and moving to a softer spring.
Also, won't the drop you expect to get, be relative to the 335i's ZSP height, which is 14.25"? That is, it's not relative to your current height. Unless you've got different parts in your strut.
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Now I'm confused. Are ZSP springs softer than Xi springs? I am not looking to drop my car by much. I was hoping for a 0.5" with a proper spring rate. That is why I am scared to use D4 or D5 springs because they are meant for a lighter vehicle.
Here are the ZSP springs that I was going to use for my E91xi:
Front: D7 - from a E90 335i Auto
Rear: D8 - from a E93 335i Auto
To give you some perspective of weight and weight distribution:
E91 328xi Auto - 3,814 lb, Frt 1,953, Rr 1,861
E90 335i Auto - 3,605 lb, Frt 1,842, Rr 1,763
E93 335i Auto - 4,001 lb, Frt 1,908, Rr 2,093
E90 328xi Auto - 3,649 lb, Frt 1,967, Rr 1,682
E90 328i Auto - 3,428 lb, Frt 1,752, Rr 1,676
I am trying to find the best balance that suits my vehicle. I can tell you that E93 335i ZSP rear springs (D8) are the same length as the E92 335i ZSP rear springs except the coils are larger in diameter.
The front ZSP springs whether a D4, D7 or D8 look identical in terms of coil diameter and length. Very Odd.
I should mention that I am mating these with Bilstein HDs.