going from Nismo to KW coilovers?

Baer383

The V3's spring rate is not listed as it is a progressive spring.

Here is a quote from KW's web site in the FAQ section

Why doesn’t KW provide a rating on its progressive springs?
Progressive springs do not have a “set spring rate”. As a progressive spring compresses, the spring rate increases, unlike a conventional linear spring. This makes it impossible to put a specific rate on the spring because at different points in its travel, the spring rate will be different.

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2013 ZL1

754 rwhp 747 rwtq

Caustic

So how do you know if, ultimately, you have a softer spring? The spring still has to have a range.

Baer383

The spring rate varies and it get harder the farther it is compressed.

And it is definitely not softer when going around corners.

__________________
2013 ZL1

754 rwhp 747 rwtq