Q: raising height on coilovers = increasing spring rate? It's more compressed, right?
AudiWorld Super User
Joined: Apr 2001
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No, no, no! I went through this recently. You're just changing the spring perch height.
The spring rate does not change at all, and you are not compressing the spring (when you think about it, that would be impossible).
The spring sits on a perch that is threaded on a shaft that is attached to the lower control arm(s); and the top of the spring is seated against the car's body. The perch is on a threaded vertical shaft, and as you spin it, it rides up/down the shaft, and the spring rides up/down with it, pushing the body up or down.
The spring sits on a perch that is threaded on a shaft that is attached to the lower control arm(s); and the top of the spring is seated against the car's body. The perch is on a threaded vertical shaft, and as you spin it, it rides up/down the shaft, and the spring rides up/down with it, pushing the body up or down.
AudiWorld Super User
Joined: Apr 2001
Posts: 21,851
Likes: 1
Why would it? If you want to get scientific, Earth's gravity is less at higher altitudes, so...
... when you push the body up an inch, it weighs less (probably lightened by the weight of a gnat's wing) and that would lighten the load on the spring!
I had this debate last year, and we all ended up laughing. If you were literally compressing the spring, that would mean that you had a fixed structure connecting the top and the bottom of the spring, which would mean that you would have no rebound.
I had this debate last year, and we all ended up laughing. If you were literally compressing the spring, that would mean that you had a fixed structure connecting the top and the bottom of the spring, which would mean that you would have no rebound.
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